Texas Instruments TMS320C3x 사용자 설명서
Subtract Integer With Borrow, 3-Operand
SUBB3
13-225
Assembly Language Instructions
Example
SUBB3 R5,*AR5++(IR0),R0
Before Instruction
After Instruction
R0
00
0000 0000
R0
00 0000 0032
R5
00 0000 00C7
R5
00 0000 00C7
AR5
80 9800
AR5
80 9804
IR0
4
IR0
4
LUF
0
LUF
0
LV
0
LV
0
UF
0
UF
0
N
0
N
0
Z
0
Z
0
V
0
V
0
C
1
C
0
Data memory
809800h
0FA
809800h
0FA
250
50
199
199
250
Note:
Cycle Count
See subsection 8.5.2,
Data Loads and Stores, on page 8-24 for the effects
of operand ordering on the cycle count.