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| author | Ian Lance Taylor <ian@airs.com> | 1997-08-26 16:33:34 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1997-08-26 16:33:34 +0000 |
| commit | 625ea5db8082b4f2229bdd48c7e064a6a4334223 (patch) | |
| tree | c5036f5a0eb04cffde0ffb00f8fb2520624d8f49 /gas/config | |
| parent | 051a96ff10e679497fb256765639426ae1281ee7 (diff) | |
| download | gdb-625ea5db8082b4f2229bdd48c7e064a6a4334223.zip gdb-625ea5db8082b4f2229bdd48c7e064a6a4334223.tar.gz gdb-625ea5db8082b4f2229bdd48c7e064a6a4334223.tar.bz2 | |
Use address size prefix for loopw as for jcxz.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-i386.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 20a4f4e..3bd5398 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -1737,11 +1737,17 @@ md_assemble (line) ADDR_PREFIX_OPCODE. This is a hack, but, then, so is the instruction itself. + If an explicit suffix is used for the loop + instruction, that actually controls whether we use + cx vs. ecx. This is also controlled by + ADDR_PREFIX_OPCODE. + I don't know if there is any valid case in which we want to emit WORD_PREFIX_OPCODE, but I am keeping the old behaviour for safety. */ - if (IS_JUMP_ON_CX_ZERO (t->base_opcode)) + if (IS_JUMP_ON_CX_ZERO (t->base_opcode) + || IS_LOOP_ECX_TIMES (t->base_opcode)) FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE); else FRAG_APPEND_1_CHAR (WORD_PREFIX_OPCODE); |