TMS320 Datasheet, PDF (13/69 Pages) Texas Instruments – SECOND-GENERATION DIGITAL SIGNAL PROCESSORS

TMS320C25
SPRS010B — MAY 1987 — REVISED NOVEMBER 1990
Table 3. TMS320C25 Instruction Set Summary (continued)
ACCUMULATOR MEMORY REFERENCE INSTRUCTIONS
MNEMONIC
DESCRIPTION
NO.
INSTRUCTION BIT CODE
WORDS
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SUBT†
Subtract from accumulator with shift specified by
T register
1
0 1 0 0 0 1 10 I
D
XOR
XORK†
Exclusive-OR with accumulator
Exclusive-OR immediate with accumulator with
shift
1
0 1 0 0 1 1 00 I
D
2
1101
S
00000110
ZAC
Zero accumulator
1
1 1 0 0 1 0 1000000000
ZALH Zero low accumulator and load high accumulator
1
0 1 0 0 0 0 00 I
D
ZALR‡
Zero low accumulator and load high accumulator
with rounding
1
0 1 1 1 1 0 11 I
D
ZALS
Zero accumulator and load low accumulator with
sign extension suppressed
1
0 1 0 0 0 0 01 I
D
AUXILIARY REGISTERS AND DATA PAGE POINTER INSTRUCTIONS
MNEMONIC
DESCRIPTION
ADRK‡ Add to auxiliary register short immediate
NO.
INSTRUCTION BIT CODE
WORDS
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1
0 1 1 1 1 1 10
K
CMPR†
Compare auxiliary register with auxiliary
register AR0
1
1 1 0 0 1 1 1 0 0 1 0 1 0 0 _CM
LAR
Load auxiliary register
1
00110
R
I
D
LARK Load auxilliary register short immediate
1
11000
R
K
LARP
LDP
Load auxilliary register pointer
Load data memory page pointer
1
0 1 0 1 0 1 0110001
R
1
0 1 0 1 0 0 10 I
D
LDPK
LRLK†
Load data memory page pointer immediate
Load auxiliary register long immediate
1
1 1 0 0 1 00
2
11010
R
DP
00000000
MAR
Modify auxiliary register
1
0 1 0 1 0 1 01 I
D
SAR
Store auxiliary register
1
01110
R
I
D
SBRK‡ Subtract from auxiliary register short immediate
1
0 1 1 1 1 1 11
K
† _{These instructions are not included in the TMS320C1x instruction set.}
‡ _{These instructions are not included in the TMS32020 instruction set.}
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