Texas Instruments TMS320 - Manual (Page 14)

NO.
WORDS
DESCRIPTION
INSTRUCTION BIT CODE
MNEMONIC
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
PM
K
TMS320 SECOND GENERATION
DIGITAL SIGNAL PROCESSORS
SPRS010B — MAY 1987 — REVISED NOVEMBER 1990
POST OFFICE BOX 1443

HOUSTON, TEXAS 77001 14
Table 3. TMS320C25 Instruction Set Summary (continued)
T REGISTER, P REGISTER, AND MULTIPLY INSTRUCTIONS
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
APAC Add P register to accumulator 1 1 1 0 0 1 1 1 0 0 0 0 1 0 1 0 1
LPH † Load high P register 1 0 1 0 1 0 0 1 1 I
LT Load T register 1 0 0 1 1 1 1 0 0 I
LTA Load T register and accumulate previous product 1 0 0 1 1 1 1 0 1 I
LTD
Load T register, accumulate previous product,
and move data
1 0 0 1 1 1 1 1 1 I
LTP †
Load T register and store P register in
accumulator
1 0 0 1 1 1 1 1 0 I
LTS † Load T register and subtract previous product 1 0 1 0 1 1 0 1 1 I
MAC † Multiply and accumulate 2 0 1 0 1 1 1 0 1 I
MACD † Multiply and accumulate with data move 2 0 1 0 1 1 1 0 0 I
MPY
Multiply (with T register, store product in
P register)
1 0 0 1 1 1 0 0 0 I
MPYA ‡ Multiply and accumulate previous product 1 0 0 1 1 1 0 1 0 I
MPYK Multiply immediate 1 1 0 1
MPYS‡ Multiply and subtract previous product 1 0 0 1 1 1 0 1 1 I
MPYU‡ Multiply unsigned 1 1 1 0 0 1 1 1 1 I
PAC Load accumulator with P register 1 1 1 0 0 1 1 1 0 0 0 0 1 0 1 0 0
SPAC Subtract P register from accumulator 1 1 1 0 0 1 1 1 0 0 0 0 1 0 1 1 0
SPH ‡ Store high P register 1 0 1 1 1 1 1 0 1 I
SPL ‡ Store low P register 1 0 1 1 1 1 1 0 0 I
SPM † Set P register output shift mode 1 1 1 0 0 1 1 1 0 0 0 0 0 1 0
SQRA † Square and accumulate 1 0 0 1 1 1 0 0 1 I
SQRS † Square and subtract previous product 1 0 1 0 1 1 0 1 0 I
† These instructions are not included in the TMS320C1x instruction set.
‡ These instructions are not included in the TMS32020 instruction set.