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Add support for 6800 compatibility instructions. The occasional program uses the 6800 compatibility instructions since they are actually specified by Motorola in at least some documentation. They advertised the 6809 as source compatible with the 6800. This mode is not enabled by default, however. It is my belief that receiving an error when using a non-6809 instruction is more useful since it is unlikely that much 6800 source code is being assembled for the 6809 these days. Nevertheless, the --6809compat option is present for just those purposes so one does not have to resort to using macros (which would work equally well in most cases).
author William Astle <lost@l-w.ca>
date Tue, 15 Apr 2014 10:57:34 -0600
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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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2 <HTML
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3 ><HEAD
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4 ><TITLE
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5 >Assembler Directives</TITLE
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6 ><META
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7 NAME="GENERATOR"
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8 CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
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9 REL="HOME"
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10 TITLE="LW Tool Chain"
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11 HREF="index.html"><LINK
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12 REL="UP"
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13 TITLE="LWASM"
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14 HREF="c62.html"><LINK
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15 REL="PREVIOUS"
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16 TITLE="Numbers and Expressions"
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17 HREF="x221.html"><LINK
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18 REL="NEXT"
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19 TITLE="Macros"
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20 HREF="x520.html"></HEAD
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21 ><BODY
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22 CLASS="SECTION"
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23 BGCOLOR="#FFFFFF"
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24 TEXT="#000000"
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25 LINK="#0000FF"
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26 VLINK="#840084"
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27 ALINK="#0000FF"
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28 ><DIV
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29 CLASS="NAVHEADER"
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30 ><TABLE
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31 SUMMARY="Header navigation table"
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32 WIDTH="100%"
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33 BORDER="0"
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34 CELLPADDING="0"
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35 CELLSPACING="0"
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36 ><TR
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37 ><TH
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38 COLSPAN="3"
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39 ALIGN="center"
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40 >LW Tool Chain</TH
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41 ></TR
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42 ><TR
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43 ><TD
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44 WIDTH="10%"
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45 ALIGN="left"
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46 VALIGN="bottom"
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47 ><A
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48 HREF="x221.html"
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49 ACCESSKEY="P"
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50 >Prev</A
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51 ></TD
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52 ><TD
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53 WIDTH="80%"
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54 ALIGN="center"
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55 VALIGN="bottom"
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56 >Chapter 3. LWASM</TD
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57 ><TD
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58 WIDTH="10%"
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59 ALIGN="right"
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60 VALIGN="bottom"
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61 ><A
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62 HREF="x520.html"
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63 ACCESSKEY="N"
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64 >Next</A
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65 ></TD
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66 ></TR
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67 ></TABLE
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68 ><HR
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69 ALIGN="LEFT"
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70 WIDTH="100%"></DIV
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71 ><DIV
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72 CLASS="SECTION"
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73 ><H1
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74 CLASS="SECTION"
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75 ><A
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76 NAME="AEN229"
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77 >3.6. Assembler Directives</A
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78 ></H1
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79 ><P
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80 >Various directives can be used to control the behaviour of the
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81 assembler or to include non-code/data in the resulting output. Those directives
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82 that are not described in detail in other sections of this document are
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83 described below.</P
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84 ><DIV
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85 CLASS="SECTION"
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86 ><H2
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87 CLASS="SECTION"
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88 ><A
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89 NAME="AEN232"
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90 >3.6.1. Data Directives</A
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91 ></H2
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92 ><P
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93 ></P
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94 ><DIV
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95 CLASS="VARIABLELIST"
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96 ><DL
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97 ><DT
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98 >FCB <CODE
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99 CLASS="PARAMETER"
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100 >expr[,...]</CODE
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101 >, .DB <CODE
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102 CLASS="PARAMETER"
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103 >expr[,...]</CODE
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104 >, .BYTE <CODE
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105 CLASS="PARAMETER"
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106 >expr[,...]</CODE
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107 ></DT
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108 ><DD
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109 ><P
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110 >Include one or more constant bytes (separated by commas) in the output.</P
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111 ></DD
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112 ><DT
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113 >FDB <CODE
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114 CLASS="PARAMETER"
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115 >expr[,...]</CODE
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116 >, .DW <CODE
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117 CLASS="PARAMETER"
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118 >expr[,...]</CODE
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119 >, .WORD <CODE
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120 CLASS="PARAMETER"
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121 >expr[,...]</CODE
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122 ></DT
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123 ><DD
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124 ><P
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125 >Include one or more words (separated by commas) in the output.</P
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126 ></DD
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127 ><DT
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128 >FQB <CODE
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129 CLASS="PARAMETER"
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130 >expr[,...]</CODE
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131 >, .QUAD <CODE
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132 CLASS="PARAMETER"
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133 >expr[,...]</CODE
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134 >, .4BYTE <CODE
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135 CLASS="PARAMETER"
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136 >expr[,...]</CODE
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137 ></DT
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138 ><DD
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139 ><P
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140 >Include one or more double words (separated by commas) in the output.</P
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141 ></DD
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142 ><DT
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143 >FCC <CODE
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144 CLASS="PARAMETER"
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145 >string</CODE
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146 >, .ASCII <CODE
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147 CLASS="PARAMETER"
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148 >string</CODE
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149 >, .STR <CODE
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150 CLASS="PARAMETER"
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151 >string</CODE
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152 ></DT
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153 ><DD
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154 ><P
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155 >Include a string of text in the output. The first character of the operand
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156 is the delimiter which must appear as the last character and cannot appear
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157 within the string. The string is included with no modifications&#62;</P
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158 ></DD
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159 ><DT
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160 >FCN <CODE
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161 CLASS="PARAMETER"
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162 >string</CODE
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163 >, .ASCIZ <CODE
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164 CLASS="PARAMETER"
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165 >string</CODE
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166 >, .STRZ <CODE
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parents:
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167 CLASS="PARAMETER"
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168 >string</CODE
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parents:
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169 ></DT
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parents:
diff changeset
170 ><DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
171 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
172 >Include a NUL terminated string of text in the output. The first character of
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William Astle <lost@l-w.ca>
parents:
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173 the operand is the delimiter which must appear as the last character and
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William Astle <lost@l-w.ca>
parents:
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174 cannot appear within the string. A NUL byte is automatically appended to
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William Astle <lost@l-w.ca>
parents:
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175 the string.</P
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William Astle <lost@l-w.ca>
parents:
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176 ></DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
177 ><DT
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William Astle <lost@l-w.ca>
parents:
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178 >FCS <CODE
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parents:
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179 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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180 >string</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
181 >, .ASCIS <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
182 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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183 >string</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
184 >, .STRS <CODE
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parents:
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185 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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186 >string</CODE
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William Astle <lost@l-w.ca>
parents:
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187 ></DT
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William Astle <lost@l-w.ca>
parents:
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188 ><DD
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William Astle <lost@l-w.ca>
parents:
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189 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
190 >Include a string of text in the output with bit 7 of the final byte set. The
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William Astle <lost@l-w.ca>
parents:
diff changeset
191 first character of the operand is the delimiter which must appear as the last
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William Astle <lost@l-w.ca>
parents:
diff changeset
192 character and cannot appear within the string.</P
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William Astle <lost@l-w.ca>
parents:
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193 ></DD
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William Astle <lost@l-w.ca>
parents:
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194 ><DT
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William Astle <lost@l-w.ca>
parents:
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195 >ZMB <CODE
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parents:
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196 CLASS="PARAMETER"
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parents:
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197 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
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198 ></DT
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William Astle <lost@l-w.ca>
parents:
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199 ><DD
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William Astle <lost@l-w.ca>
parents:
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200 ><P
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William Astle <lost@l-w.ca>
parents:
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201 >Include a number of NUL bytes in the output. The number must be fully resolvable
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William Astle <lost@l-w.ca>
parents:
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202 during pass 1 of assembly so no forward or external references are permitted.</P
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parents:
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203 ></DD
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William Astle <lost@l-w.ca>
parents:
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204 ><DT
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William Astle <lost@l-w.ca>
parents:
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205 >ZMD <CODE
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parents:
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206 CLASS="PARAMETER"
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207 >expr</CODE
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208 ></DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
209 ><DD
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William Astle <lost@l-w.ca>
parents:
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210 ><P
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parents:
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211 >Include a number of zero words in the output. The number must be fully
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parents:
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212 resolvable during pass 1 of assembly so no forward or external references are
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William Astle <lost@l-w.ca>
parents:
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213 permitted.</P
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parents:
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214 ></DD
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parents:
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215 ><DT
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William Astle <lost@l-w.ca>
parents:
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216 >ZMQ <CODE
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parents:
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217 CLASS="PARAMETER"
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parents:
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218 >expr<CODE
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parents:
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219 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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220 ></CODE
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William Astle <lost@l-w.ca>
parents:
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221 ></CODE
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William Astle <lost@l-w.ca>
parents:
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222 ></DT
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William Astle <lost@l-w.ca>
parents:
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223 ><DD
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William Astle <lost@l-w.ca>
parents:
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224 ><P
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parents:
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225 >Include a number of zero double-words in the output. The number must be fully
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William Astle <lost@l-w.ca>
parents:
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226 resolvable during pass 1 of assembly so no forward or external references are
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William Astle <lost@l-w.ca>
parents:
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227 permitted.</P
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William Astle <lost@l-w.ca>
parents:
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228 ></DD
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William Astle <lost@l-w.ca>
parents:
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229 ><DT
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William Astle <lost@l-w.ca>
parents:
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230 >RMB <CODE
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parents:
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231 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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232 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
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233 >, .BLKB <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
234 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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235 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
236 >, .DS <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
237 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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238 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
239 >, .RS <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
240 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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241 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
242 ></DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
243 ><DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
244 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
245 >Reserve a number of bytes in the output. The number must be fully resolvable
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William Astle <lost@l-w.ca>
parents:
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246 during pass 1 of assembly so no forward or external references are permitted.
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William Astle <lost@l-w.ca>
parents:
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247 The value of the bytes is undefined.</P
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William Astle <lost@l-w.ca>
parents:
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248 ></DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
249 ><DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
250 >RMD <CODE
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William Astle <lost@l-w.ca>
parents:
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251 CLASS="PARAMETER"
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parents:
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252 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
253 ></DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
254 ><DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
255 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
256 >Reserve a number of words in the output. The number must be fully
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William Astle <lost@l-w.ca>
parents:
diff changeset
257 resolvable during pass 1 of assembly so no forward or external references are
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William Astle <lost@l-w.ca>
parents:
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258 permitted. The value of the words is undefined.</P
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William Astle <lost@l-w.ca>
parents:
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259 ></DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
260 ><DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
261 >RMQ <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
262 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
diff changeset
263 >expr</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
264 ></DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
265 ><DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
266 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
267 >Reserve a number of double-words in the output. The number must be fully
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
268 resolvable during pass 1 of assembly so no forward or external references are
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
269 permitted. The value of the double-words is undefined.</P
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William Astle <lost@l-w.ca>
parents:
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270 ></DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
271 ><DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
272 >INCLUDEBIN <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
273 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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274 >filename</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
275 ></DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
276 ><DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
277 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
278 >Treat the contents of <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
279 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
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280 >filename</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
281 > as a string of bytes to
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
282 be included literally at the current assembly point. This has the same effect
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
283 as converting the file contents to a series of FCB statements and including
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
284 those at the current assembly point.</P
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William Astle <lost@l-w.ca>
parents:
diff changeset
285 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
286 > If <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
287 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
diff changeset
288 >filename</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
289 > beings with a /, the file name
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
290 will be taken as absolute. Otherwise, the current directory will be
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
291 searched followed by the search path in the order specified.</P
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William Astle <lost@l-w.ca>
parents:
diff changeset
292 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
293 > Please note that absolute path detection including drive letters will
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William Astle <lost@l-w.ca>
parents:
diff changeset
294 not function correctly on Windows platforms. Non-absolute inclusion will
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
295 work, however.</P
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William Astle <lost@l-w.ca>
parents:
diff changeset
296 ></DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
297 ><DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
298 >FILL <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
299 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
diff changeset
300 >size</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
301 >,<CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
302 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
diff changeset
303 >byte</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
304 ></DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
305 ><DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
306 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
307 >Insert <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
308 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
diff changeset
309 >size</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
310 > bytes of <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
311 CLASS="PARAMETER"
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William Astle <lost@l-w.ca>
parents:
diff changeset
312 >byte</CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
313 >.</P
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William Astle <lost@l-w.ca>
parents:
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314 ></DD
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William Astle <lost@l-w.ca>
parents:
diff changeset
315 ></DL
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William Astle <lost@l-w.ca>
parents:
diff changeset
316 ></DIV
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William Astle <lost@l-w.ca>
parents:
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317 ></DIV
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William Astle <lost@l-w.ca>
parents:
diff changeset
318 ><DIV
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William Astle <lost@l-w.ca>
parents:
diff changeset
319 CLASS="SECTION"
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William Astle <lost@l-w.ca>
parents:
diff changeset
320 ><H2
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William Astle <lost@l-w.ca>
parents:
diff changeset
321 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
322 ><A
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William Astle <lost@l-w.ca>
parents:
diff changeset
323 NAME="AEN343"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
324 >3.6.2. Address Definition</A
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William Astle <lost@l-w.ca>
parents:
diff changeset
325 ></H2
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William Astle <lost@l-w.ca>
parents:
diff changeset
326 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
327 >The directives in this section all control the addresses of symbols
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
328 or the assembly process itself.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
329 ><P
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William Astle <lost@l-w.ca>
parents:
diff changeset
330 ></P
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William Astle <lost@l-w.ca>
parents:
diff changeset
331 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
332 CLASS="VARIABLELIST"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
333 ><DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
334 ><DT
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William Astle <lost@l-w.ca>
parents:
diff changeset
335 >ORG <CODE
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William Astle <lost@l-w.ca>
parents:
diff changeset
336 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
337 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
338 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
339 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
340 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
341 >Set the assembly address. The address must be fully resolvable on the
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
342 first pass so no external or forward references are permitted. ORG is not
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
343 permitted within sections when outputting to object files. For target formats
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
344 that include address information (decb, hex, srec, and ihex), an ORG
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
345 directive will re-start the address sequence within the output. When using
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
346 the raw target format, ORG is used only to determine the addresses of symbols.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
347 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
348 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
349 ><CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
350 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
351 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
352 > EQU <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
353 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
354 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
355 >, <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
356 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
357 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
358 > = <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
359 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
360 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
361 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
362 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
363 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
364 >Define the value of <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
365 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
366 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
367 > to be <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
368 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
369 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
370 >.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
371 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
372 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
373 ><CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
374 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
375 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
376 > SET <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
377 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
378 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
379 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
380 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
381 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
382 >Define the value of <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
383 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
384 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
385 > to be <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
386 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
387 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
388 >.
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
389 Unlike EQU, SET permits symbols to be defined multiple times as long as SET
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
390 is used for all instances. Use of the symbol before the first SET statement
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
391 that sets its value is undefined.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
392 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
393 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
394 >SETDP <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
395 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
396 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
397 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
398 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
399 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
400 >Inform the assembler that it can assume the DP register contains
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
401 <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
402 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
403 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
404 >. This directive is only advice to the assembler
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
405 to determine whether an address is in the direct page and has no effect
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
406 on the contents of the DP register. The value must be fully resolved during
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
407 the first assembly pass because it affects the sizes of subsequent instructions.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
408 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
409 >This directive has no effect in the object file target.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
410 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
411 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
412 >ALIGN <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
413 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
414 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
415 >[,<CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
416 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
417 >value</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
418 >]</DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
419 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
420 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
421 >Force the current assembly address to be a multiple of
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
422 <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
423 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
424 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
425 >. If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
426 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
427 >value</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
428 > is not
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
429 specified, a series of NUL bytes is output to force the alignment, if
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
430 required. Otherwise, the low order 8 bits of <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
431 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
432 >value</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
433 >
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
434 will be used as the fill. The alignment value must be fully resolved on the
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
435 first pass because it affects the addresses of subsquent instructions.
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
436 However, <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
437 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
438 >value</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
439 > may include forward references; as
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
440 long as it resolves to a constant for the second pass, the value will be
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
441 accepted.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
442 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
443 >Unless <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
444 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
445 >value</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
446 > is specified as something like $12,
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
447 this directive is not suitable for inclusion in the middle of actual code.
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
448 The default padding value is $00 which is intended to be used within data
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
449 blocks. </P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
450 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
451 ></DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
452 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
453 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
454 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
455 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
456 ><H2
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
457 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
458 ><A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
459 NAME="AEN390"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
460 >3.6.3. Conditional Assembly</A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
461 ></H2
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
462 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
463 >Portions of the source code can be excluded or included based on conditions
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
464 known at assembly time. Conditionals can be nested arbitrarily deeply. The
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
465 directives associated with conditional assembly are described in this section.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
466 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
467 >All conditionals must be fully bracketed. That is, every conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
468 statement must eventually be followed by an ENDC at the same level of nesting.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
469 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
470 >Conditional expressions are only evaluated on the first assembly pass.
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
471 It is not possible to game the assembly process by having a conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
472 change its value between assembly passes. Due to the underlying architecture
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
473 of LWASM, there is no possible utility to IFP1 and IFP2, nor can they, as of LWASM 3.0, actually
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
474 be implemented meaningfully. Thus there is not and never will
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
475 be any equivalent of IFP1 or IFP2 as provided by other assemblers. Use of those opcodes
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
476 will throw a warning and be ignored.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
477 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
478 >It is important to note that if a conditional does not resolve to a constant
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
479 during the first parsing pass, an error will be thrown. This is unavoidable because the assembler
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
480 must make a decision about which source to include and which source to exclude at this stage.
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
481 Thus, expressions that work normally elsewhere will not work for conditions.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
482 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
483 ></P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
484 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
485 CLASS="VARIABLELIST"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
486 ><DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
487 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
488 >IFEQ <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
489 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
490 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
491 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
492 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
493 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
494 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
495 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
496 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
497 > evaluates to zero, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
498 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
499 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
500 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
501 >IFNE <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
502 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
503 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
504 >, IF <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
505 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
506 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
507 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
508 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
509 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
510 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
511 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
512 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
513 > evaluates to a non-zero value, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
514 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
515 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
516 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
517 >IFGT <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
518 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
519 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
520 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
521 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
522 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
523 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
524 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
525 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
526 > evaluates to a value greater than zero, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
527 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
528 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
529 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
530 >IFGE <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
531 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
532 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
533 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
534 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
535 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
536 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
537 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
538 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
539 > evaluates to a value greater than or equal to zero, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
540 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
541 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
542 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
543 >IFLT <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
544 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
545 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
546 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
547 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
548 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
549 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
550 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
551 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
552 > evaluates to a value less than zero, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
553 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
554 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
555 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
556 >IFLE <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
557 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
558 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
559 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
560 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
561 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
562 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
563 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
564 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
565 > evaluates to a value less than or equal to zero , the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
566 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
567 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
568 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
569 >IFDEF <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
570 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
571 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
572 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
573 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
574 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
575 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
576 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
577 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
578 > is defined at this point in the assembly
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
579 process, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
580 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
581 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
582 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
583 >IFNDEF <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
584 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
585 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
586 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
587 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
588 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
589 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
590 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
591 >sym</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
592 > is not defined at this point in the assembly
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
593 process, the conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
594 will be considered true.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
595 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
596 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
597 >ELSE</DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
598 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
599 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
600 >If the preceding conditional at the same level of nesting was false, the
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
601 statements following will be assembled. If the preceding conditional at
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
602 the same level was true, the statements following will not be assembled.
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
603 Note that the preceding conditional might have been another ELSE statement
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
604 although this behaviour is not guaranteed to be supported in future versions
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
605 of LWASM.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
606 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
607 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
608 >ENDC</DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
609 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
610 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
611 >This directive marks the end of a conditional construct. Every conditional
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
612 construct must end with an ENDC directive.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
613 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
614 ></DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
615 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
616 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
617 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
618 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
619 ><H2
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
620 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
621 ><A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
622 NAME="AEN455"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
623 >3.6.4. OS9 Target Directives</A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
624 ></H2
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
625 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
626 >This section includes directives that apply solely to the OS9
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
627 target.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
628 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
629 ></P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
630 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
631 CLASS="VARIABLELIST"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
632 ><DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
633 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
634 >OS9 <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
635 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
636 >syscall</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
637 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
638 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
639 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
640 >&#13;This directive generates a call to the specified system call. <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
641 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
642 >syscall</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
643 > may be an arbitrary expression.&#13;</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
644 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
645 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
646 >MOD <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
647 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
648 >size</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
649 >,<CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
650 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
651 >name</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
652 >,<CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
653 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
654 >type</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
655 >,<CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
656 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
657 >flags</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
658 >,<CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
659 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
660 >execoff</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
661 >,<CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
662 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
663 >datasize</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
664 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
665 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
666 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
667 >&#13;This tells LWASM that the beginning of the actual module is here. It will
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
668 generate a module header based on the parameters specified. It will also
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
669 begin calcuating the module CRC.&#13;</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
670 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
671 >&#13;The precise meaning of the various parameters is beyond the scope of this
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
672 document since it is not a tutorial on OS9 module programming.&#13;</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
673 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
674 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
675 >EMOD</DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
676 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
677 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
678 >&#13;This marks the end of a module and causes LWASM to emit the calculated CRC
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
679 for the module.&#13;</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
680 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
681 ></DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
682 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
683 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
684 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
685 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
686 ><H2
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
687 CLASS="SECTION"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
688 ><A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
689 NAME="AEN480"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
690 >3.6.5. Miscelaneous Directives</A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
691 ></H2
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
692 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
693 >This section includes directives that do not fit into the other
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
694 categories.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
695 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
696 ></P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
697 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
698 CLASS="VARIABLELIST"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
699 ><DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
700 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
701 >INCLUDE <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
702 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
703 >filename</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
704 >, USE <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
705 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
706 >filename</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
707 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
708 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
709 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
710 > Include the contents of <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
711 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
712 >filename</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
713 > at
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
714 this point in the assembly as though it were a part of the file currently
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
715 being processed. Note that if whitespace appears in the name of the file,
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
716 you must enclose <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
717 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
718 >filename</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
719 > in quotes.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
720 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
721 >Note that the USE variation is provided only for compatibility with other
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
722 assemblers. It is recommended to use the INCLUDE variation.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
723 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
724 >If <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
725 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
726 >filename</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
727 > begins with a &quot;/&quot;, it is
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
728 interpreted as an absolute path. If it does not, the search path will be used
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
729 to find the file. First, the directory containing the file that contains this
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
730 directive. (Includes within an included file are relative to the included file,
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
731 not the file that included it.) If the file is not found there, the include path
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
732 is searched. If it is still not found, an error will be thrown. Note that the
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
733 current directory as understood by your shell or operating system is not searched.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
734 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
735 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
736 >END <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
737 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
738 >[expr]</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
739 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
740 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
741 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
742 >This directive causes the assembler to stop assembling immediately as though
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
743 it ran out of input. For the DECB target only, <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
744 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
745 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
746 >
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
747 can be used to set the execution address of the resulting binary. For all
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
748 other targets, specifying <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
749 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
750 >expr</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
751 > will cause an error.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
752 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
753 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
754 >ERROR <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
755 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
756 >string</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
757 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
758 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
759 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
760 >Causes a custom error message to be printed at this line. This will cause
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
761 assembly to fail. This directive is most useful inside conditional constructs
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
762 to cause assembly to fail if some condition that is known bad happens. Everything
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
763 from the directive to the end of the line is considered the error message.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
764 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
765 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
766 >WARNING <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
767 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
768 >string</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
769 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
770 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
771 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
772 >Causes a custom warning message to be printed at this line. This will not cause
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
773 assembly to fail. This directive is most useful inside conditional constructs
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
774 or include files to alert the programmer to a deprecated feature being used
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
775 or some other condition that may cause trouble later, but which may, in fact,
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
776 not cause any trouble.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
777 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
778 ><DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
779 >.MODULE <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
780 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
781 >string</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
782 ></DT
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
783 ><DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
784 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
785 >This directive is ignored for most output targets. If the output target
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
786 supports encoding a module name into it, <CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
787 CLASS="PARAMETER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
788 >string</CODE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
789 >
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
790 will be used as the module name.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
791 ><P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
792 >As of version 3.0, no supported output targets support this directive.</P
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
793 ></DD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
794 ></DL
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
795 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
796 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
797 ></DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
798 ><DIV
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
799 CLASS="NAVFOOTER"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
800 ><HR
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
801 ALIGN="LEFT"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
802 WIDTH="100%"><TABLE
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
803 SUMMARY="Footer navigation table"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
804 WIDTH="100%"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
805 BORDER="0"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
806 CELLPADDING="0"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
807 CELLSPACING="0"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
808 ><TR
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
809 ><TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
810 WIDTH="33%"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
811 ALIGN="left"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
812 VALIGN="top"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
813 ><A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
814 HREF="x221.html"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
815 ACCESSKEY="P"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
816 >Prev</A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
817 ></TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
818 ><TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
819 WIDTH="34%"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
820 ALIGN="center"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
821 VALIGN="top"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
822 ><A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
823 HREF="index.html"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
824 ACCESSKEY="H"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
825 >Home</A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
826 ></TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
827 ><TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
828 WIDTH="33%"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
829 ALIGN="right"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
830 VALIGN="top"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
831 ><A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
832 HREF="x520.html"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
833 ACCESSKEY="N"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
834 >Next</A
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
835 ></TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
836 ></TR
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
837 ><TR
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
838 ><TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
839 WIDTH="33%"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
840 ALIGN="left"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
841 VALIGN="top"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
842 >Numbers and Expressions</TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
843 ><TD
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
844 WIDTH="34%"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
parents:
diff changeset
845 ALIGN="center"
507f442dc71e Add support for 6800 compatibility instructions.
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846 VALIGN="top"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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William Astle <lost@l-w.ca>
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507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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850 >Up</A
507f442dc71e Add support for 6800 compatibility instructions.
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851 ></TD
507f442dc71e Add support for 6800 compatibility instructions.
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507f442dc71e Add support for 6800 compatibility instructions.
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507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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855 VALIGN="top"
507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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507f442dc71e Add support for 6800 compatibility instructions.
William Astle <lost@l-w.ca>
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507f442dc71e Add support for 6800 compatibility instructions.
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507f442dc71e Add support for 6800 compatibility instructions.
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507f442dc71e Add support for 6800 compatibility instructions.
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507f442dc71e Add support for 6800 compatibility instructions.
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William Astle <lost@l-w.ca>
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862 >