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Fixed a bug that caused the formatter to falsely print a `{sae}` decorator in some cases

This commit is contained in:
flobernd 2017-07-25 14:58:17 +02:00
parent 7434bea839
commit cde97dca36
1 changed files with 11 additions and 13 deletions
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8
src/Formatter.c
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@ -756,8 +756,11 @@ static ZydisStatus ZydisFormatterPrintDecoratorIntel(const ZydisFormatter* forma
} }
break; break;
case ZYDIS_DECORATOR_TYPE_SAE: case ZYDIS_DECORATOR_TYPE_SAE:
if (instruction->avx.hasSAE && !instruction->avx.roundingMode)
{
ZYDIS_CHECK(ZydisStringBufferAppend(buffer, bufEnd - *buffer, ZYDIS_CHECK(ZydisStringBufferAppend(buffer, bufEnd - *buffer,
ZYDIS_STRBUF_APPEND_MODE_DEFAULT, " {sae}")); ZYDIS_STRBUF_APPEND_MODE_DEFAULT, " {sae}"));
}
break; break;
case ZYDIS_DECORATOR_TYPE_SWIZZLE: case ZYDIS_DECORATOR_TYPE_SWIZZLE:
switch (instruction->avx.swizzleMode) switch (instruction->avx.swizzleMode)
@ -948,13 +951,9 @@ static ZydisStatus ZydisFormatterFormatInstrIntel(const ZydisFormatter* formatte
bufEnd - *buffer, instruction, &instruction->operands[i], bufEnd - *buffer, instruction, &instruction->operands[i],
ZYDIS_DECORATOR_TYPE_SWIZZLE)); ZYDIS_DECORATOR_TYPE_SWIZZLE));
} }
if (instruction->avx.roundingMode)
{
ZYDIS_CHECK(formatter->funcPrintDecorator(formatter, buffer, ZYDIS_CHECK(formatter->funcPrintDecorator(formatter, buffer,
bufEnd - *buffer, instruction, &instruction->operands[i], bufEnd - *buffer, instruction, &instruction->operands[i],
ZYDIS_DECORATOR_TYPE_ROUNDING_CONTROL)); ZYDIS_DECORATOR_TYPE_ROUNDING_CONTROL));
} else
{
ZYDIS_CHECK(formatter->funcPrintDecorator(formatter, buffer, ZYDIS_CHECK(formatter->funcPrintDecorator(formatter, buffer,
bufEnd - *buffer, instruction, &instruction->operands[i], bufEnd - *buffer, instruction, &instruction->operands[i],
ZYDIS_DECORATOR_TYPE_SAE)); ZYDIS_DECORATOR_TYPE_SAE));
@ -963,7 +962,6 @@ static ZydisStatus ZydisFormatterFormatInstrIntel(const ZydisFormatter* formatte
} }
} }
} }
}
return ZYDIS_STATUS_SUCCESS; return ZYDIS_STATUS_SUCCESS;
} }