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Add operandsizewarning pragma Add operandsizewarning pragma that will raise warnings for certain operands if the operand size could be smaller. (Long branch used instead of short branch, for instance.)
author William Astle <lost@l-w.ca>
date Fri, 16 Feb 2018 22:53:46 -0700
parents fc166b3bbae3
children a71206ed966c
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454:ffdef8994f13 455:cad5937314cb
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197 ><P 197 ><P
198 >These pragmas enable convenience instructions extending the 6809 and 6309 198 >These pragmas enable convenience instructions extending the 6809 and 6309
199 instruction sets respectively. For more information, see 199 instruction sets respectively. For more information, see
200 <A 200 <A
201 HREF="x795.html" 201 HREF="x800.html"
202 >Section 3.11</A 202 >Section 3.11</A
203 >.</P 203 >.</P
204 ></DD 204 ></DD
205 ><DT 205 ><DT
206 >index0tonone</DT 206 >index0tonone</DT
395 >It should be noted that the presence or absence of this pragma 395 >It should be noted that the presence or absence of this pragma
396 will not change the correctness of the generated code unless cycle counts 396 will not change the correctness of the generated code unless cycle counts
397 or byte counts are critical (which they usually are not). It also will 397 or byte counts are critical (which they usually are not). It also will
398 not override the operand size override prefixes (&lt; and &gt;). It only 398 not override the operand size override prefixes (&lt; and &gt;). It only
399 applies when the assembler is left to guess what the operand size is.</P 399 applies when the assembler is left to guess what the operand size is.</P
400 ></DD
401 ><DT
402 >operandsizewarning</DT
403 ><DD
404 ><P
405 >Enabling this pragma will cause LWASM to show a warning when it
406 detects that a smaller addressing mode could be used for an instruction.
407 This is particularly useful for finding places where long branches are used
408 where short branches could be used instead. It will also show the warnings
409 for indexing offsets (regardless of whether the operand size is
410 forced).</P
411 ><P
412 >As of LWASM 4.16, no other checks are performed.</P
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401 ><DT 414 ><DT
402 >qrts</DT 415 >qrts</DT
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404 ><P 417 ><P
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