Texas Instruments TMS320C67X/C67X+ DSP - Manual (Page 309)

Subtract Two Signed Integers Without Saturation SUB
3-249 Instruction Set SPRU733
Subtract Two Signed Integers Without Saturation SUB
Syntax SUB (.unit) src1, src2, dst
or
SUB (.D1 or .D2) src2, src1, dst
.unit = .L1, .L2, .S1, .S2
Compatibility C62x, C64x, C67x, and C67x+ CPU
Opcode .L unit
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
sint .L1, .L2 000 0111
src1
src2
dst xsint
sint
sint .L1, .L2 001 0111
src1
src2
dst sint
xsint
slong .L1, .L2 010 0111
src1
src2
dst xsint
sint
slong .L1, .L2 011 0111
src1
src2
dst scst5
xsint
sint .L1, .L2 000 0110
src1
src2
dst scst5
slong
slong .L1, .L2 010 0100