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annotate lwasm/instab.h @ 473:8181ddd707f1
Add "nooutput" pragma
Add the "nooutput" pragma which causes assembly to proceed as normal for
code with the exception that no output is generated for any instructions
under this pragma. The current address is increased as usual and the symbol
table is still constructed. However, no actual output is generated for lines
operating under this pragma.
author | William Astle <lost@l-w.ca> |
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date | Thu, 01 Nov 2018 23:07:03 -0600 |
parents | e97f9a302c6a |
children | a584b9ddffc4 |
rev | line source |
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1 /* |
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2 instab.h |
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3 Copyright © 2008 William Astle |
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4 |
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5 This file is part of LWASM. |
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6 |
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7 LWASM is free software: you can redistribute it and/or modify it under the |
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8 terms of the GNU General Public License as published by the Free Software |
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9 Foundation, either version 3 of the License, or (at your option) any later |
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10 version. |
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11 |
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12 This program is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along with |
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18 this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 |
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21 Contains definitions for the instruction table |
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22 */ |
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23 |
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24 #ifndef __instab_h_seen__ |
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25 #define __instab_h_seen__ |
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26 |
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27 #include "lwasm.h" |
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28 |
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29 typedef struct |
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30 { |
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31 char *opcode; /* the mneumonic */ |
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32 int ops[4]; /* opcode values for up to four addr modes */ |
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33 void (*parse)(asmstate_t *as, line_t *l, char **optr); /* parse operand for insn */ |
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34 void (*resolve)(asmstate_t *as, line_t *l, int force); /* resolve instruction to code */ |
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35 void (*emit)(asmstate_t *as, line_t *l); /* resolve instruction to code */ |
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36 int flags; /* flag for this instruction */ |
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37 } instab_t; |
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38 |
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39 enum |
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40 { |
385 | 41 lwasm_insn_cond = 1, /* conditional instruction */ |
42 lwasm_insn_endm = 1 << 1, /* end of macro */ | |
43 lwasm_insn_setsym = 1 << 2, /* insn sets symbol address */ | |
44 lwasm_insn_is6309 = 1 << 3, /* insn is 6309 only */ | |
45 lwasm_insn_struct = 1 << 4, /* insn allowed in a struct */ | |
46 lwasm_insn_setdata = 1 << 5, /* insn uses the data address for symbols */ | |
47 lwasm_insn_is6800 = 1 << 6, /* insn is a 6800 compatibility operation */ | |
48 lwasm_insn_is6809 = 1 << 7, /* insn is 6809 only */ | |
49 lwasm_insn_is6809conv = 1 << 8, /* insn is 6809 convenience only */ | |
50 lwasm_insn_is6309conv = 1 << 9, /* insn is 6309 convenience only */ | |
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Add emuext pragma and associated instructions.
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51 lwasm_insn_isemuext = 1 << 10, /* insn is an emulator extension */ |
385 | 52 lwasm_insn_normal = 0 |
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53 }; |
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54 |
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55 |
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56 #define PARSEFUNC(fn) void (fn)(asmstate_t *as, line_t *l, char **p) |
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57 #define RESOLVEFUNC(fn) void (fn)(asmstate_t *as, line_t *l, int force) |
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58 #define EMITFUNC(fn) void (fn)(asmstate_t *as, line_t *l) |
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59 |
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60 extern instab_t instab[]; |
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61 |
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62 #endif //__instab_h_seen__ |