Texas Instruments TMS320C67X/C67X+ DSP User 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