Texas Instruments TMS320C2XX User Manual
Page 482
Instruction Set Comparison Table
B-33
TMS320C1x/C2x/C2xx/C5x Instruction Set Comparison
Syntax
Description
5x
2xx
2x
1x
SUB
dma [, shift]
SUB {
ind} [, shift [, next ARP] ]
SUB #
k
SUB #
lk [, shift
2
]
√
√
√
√
√
√
√
√
√
√
√
√
Subtract From Accumulator With Shift
TMS320C1x and TMS320C2x devices: Subtract the
contents of the addressed data-memory location from
the accumulator. If a shift is specified, left shift the
value before subtracting. During shifting, low-order
bits are zero filled, and high-order bits are sign ex-
tended if SXM = 1.
TMS320C2xx and TMS320C5x devices: Subtract the
contents of the addressed data-memory location or an
8- or 16-bit constant from the accumulator. If a shift is
specified, left shift the data before subtracting. During
shifting, low-order bits are zero filled, and high-order
bits are sign extended if SXM = 1.
SUBB
dma
SUBB {
ind} [, next ARP]
√
√
√
√
√
√
Subtract From Accumulator With Borrow
Subtract the contents of the addressed data-memory
location and the value of the carry bit from the accumu-
lator. The carry bit is affected in the normal manner.
SUBC
dma
SUBC {
ind} [, next ARP]
√
√
√
√
√
√
√
√
Conditional Subtract
Perform conditional subtraction. SUBC can be used
for division.
SUBH
dma
SUBH {
ind} [, next ARP]
√
√
√
√
√
√
√
Subtract From High Accumulator
Subtract the contents of the addressed data-memory
location from the 16 MSBs of the accumulator. The 16
LSBs of the accumulator are not affected.
SUBK #
k
√
√
√
Subtract From Accumulator Short Immediate
Subtract an 8-bit immediate value from the accumula-
tor. The data is treated as an 8-bit positive number;
sign extension is suppressed.
SUBS
dma
SUBS {
ind} [, next ARP]
√
√
√
√
√
√
√
√
Subtract From Low Accumulator With Sign
Extension Suppressed
Subtract the contents of the addressed data-memory
location from the accumulator. The data is treated as
a 16-bit unsigned number; sign extension is sup-
pressed.