AMD SimNow Simulator 4.4.5 - Manual (Page 207)

AMD Confidential
User Manual November 21
st
, 2008
Appendix A 195
Instruction
Supported
Mnemonic Opcode Description
CMP reg/mem8,reg8 38 /r
Compare the contents of an 8-bit
register or memory operand with the
contents of an 8-bit register.
CMP reg/mem16,reg16 39 /r
Compare the contents of a 16-bit
register or memory operand with the
contents of a 16-bit register.
CMP reg/mem32,reg32 39 /r
Compare the contents of a 32-bit
register or memory operand with the
contents of a 32-bit register.
CMP reg/mem64,reg64 39 /r
Compare the contents of a 64-bit
register or memory operand with the
contents of a 64-bit register.
CMP reg8,reg/mem8 3A /r
Compare the contents of an 8-bit
register with the contents of an 8-
bit register or memory operand.
CMP reg16,reg/mem16 3B /r
Compare the contents of a 16-bit
register with the contents of a 16-
bit register or memory operand.
CMP reg32,reg/mem32 3B /r
Compare the contents of a 32-bit
register with the contents of a 32-
bit register or memory operand.
CMP reg64,reg/mem64 3B /r
Compare the contents of a 64-bit
register with the contents of a 64-
bit register or memory operand.
CMPS mem8,mem8 A6
Compare the byte at DS:rSI with the
byte at ES:rDI and then increment or
decrement rSI and rDI.
CMPS mem16,mem16 A7
Compare the word at DS:rSI with the
word at ES:rDI and then increment or
decrement rSI and rDI.
CMPS mem32,mem32 A7
Compare the doubleword at DS:rSI with
the doubleword at ES:rDI and then
increment or decrement rSI and rDI.
CMPS mem64,mem64 A7
Compare the quadword at DS:rSI with
the quadword at ES:rDI and then
increment or decrement rSI and rDI.
CMPSB A6
Compare the byte at DS:rSI with the
byte at ES:rDI and then increment or
decrement rSI and rDI.
CMPSW A7
Compare the word at DS:rSI with the
word at ES:rDI and then increment or
decrement rSI and rDI.
CMPSD A7
Compare the doubleword at DS:rSI with
the doubleword at ES:rDI and then
increment or decrement rSI and rDI.
CMPSQ A7
Compare the quadword at DS:rSI with
the quadword at ES:rDI and then
increment or decrement rSI and rDI.
CMPXCHG reg/mem8,reg8 0F B0 /r
Compare AL register with an 8-bit
register or memory location. If
equal, copy the second operand to the
first operand. Otherwise, copy the
first operand to AL.
CMPXCHG reg/mem16,reg16 0F B1 /r
Compare AX register with a 16-bit
register or memory location. If
equal, copy the second operand to the
first operand. Otherwise, copy the
first operand to AX.
CMPXCHG reg/mem32,reg32 0F B1 /r
Compare EAX register with a 32-bit
register or memory location. If
equal, copy the second operand to the
first operand. Otherwise, copy the
first operand to EAX.
CMPXCHG reg/mem64,reg64 0F B1 /r
Compare RAX register with a 64-bit
register or memory location. If
equal, copy the second operand to the
first operand. Otherwise, copy the
first operand to RAX.