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CMPEQ Compare for Equality, Signed Integers
3-80 Instruction Set SPRU733
Compare for Equality, Signed Integers
CMPEQ
Syntax CMPEQ (.unit) src1, src2, dst
.unit = .L1 or .L2
Compatibility C62x, C64x, C67x, and C67x+ CPU
Opcode
31 29 28 27 23 22 18 17 13 12 11 5 4 3 2 1 0
creg z dst src2 src1 x op 1 1 0 s p
3 1 5 5 5 1 7 1 1
Opcode map field used... For operand type... Unit Opfield
src1
src2
dst
sint
xsint
uint
.L1, .L2 101 0011
src1
src2
dst
scst5
xsint
uint
.L1, .L2 101 0010
src1
src2
dst
xsint
slong
uint
.L1, .L2 101 0001
src1
src2
dst
scst5
slong
uint
.L1, .L2 101 0000
Description Compares src1 to src2. If src1 equals src2, then 1 is written to dst; otherwise,
0 is written to dst.
Execution if (cond) {
if (src1 == src2) 1
→ dst
else 0 → dst
}
else nop