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[FAST486]

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Create a macro SWAP (swaps two variables) to shorten the code.
Implement the BSWAP instruction.


svn path=/branches/ntvdm/; revision=60717
This commit is contained in:
Aleksandar Andrejevic 2013-10-20 00:55:31 +00:00
parent a93095e678
commit 67b093f38c
4 changed files with 33 additions and 26 deletions
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24
lib/fast486/opcodes.c
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@ -2743,9 +2743,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeSbbByteModrm)
if (!(Opcode & FAST486_OPCODE_WRITE_REG))
{
/* Swap the order */
FirstValue ^= SecondValue;
SecondValue ^= FirstValue;
FirstValue ^= SecondValue;
SWAP(FirstValue, SecondValue);
}
/* Calculate the result */
@ -2806,9 +2804,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeSbbModrm)
if (!(Opcode & FAST486_OPCODE_WRITE_REG))
{
/* Swap the order */
FirstValue ^= SecondValue;
SecondValue ^= FirstValue;
FirstValue ^= SecondValue;
SWAP(FirstValue, SecondValue);
}
/* Calculate the result */
@ -2846,9 +2842,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeSbbModrm)
if (!(Opcode & FAST486_OPCODE_WRITE_REG))
{
/* Swap the order */
FirstValue ^= SecondValue;
SecondValue ^= FirstValue;
FirstValue ^= SecondValue;
SWAP(FirstValue, SecondValue);
}
/* Calculate the result */
@ -3067,9 +3061,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCmpSubByteModrm)
if (!(Opcode & FAST486_OPCODE_WRITE_REG))
{
/* Swap the order */
FirstValue ^= SecondValue;
SecondValue ^= FirstValue;
FirstValue ^= SecondValue;
SWAP(FirstValue, SecondValue);
}
/* Calculate the result */
@ -3138,9 +3130,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCmpSubModrm)
if (!(Opcode & FAST486_OPCODE_WRITE_REG))
{
/* Swap the order */
FirstValue ^= SecondValue;
SecondValue ^= FirstValue;
FirstValue ^= SecondValue;
SWAP(FirstValue, SecondValue);
}
/* Calculate the result */
@ -3187,9 +3177,7 @@ FAST486_OPCODE_HANDLER(Fast486OpcodeCmpSubModrm)
if (!(Opcode & FAST486_OPCODE_WRITE_REG))
{
/* Swap the order */
FirstValue ^= SecondValue;
SecondValue ^= FirstValue;
FirstValue ^= SecondValue;
SWAP(FirstValue, SecondValue);
}
/* Calculate the result */