Texas Instruments TMS320C2XX - Manual (Page 476)

Instruction Set Comparison Table
B-27 TMS320C1x/C2x/C2xx/C5x Instruction Set Comparison
Syntax Description 5x 2xx 2x 1x
RETE
√
Enable Interrupts and Return From Interrupt
Copy the contents of the top of the stack into the PC
and pop the stack one level. RETE automatically
clears the global interrupt enable bit and pops the
shadow registers (stored when the interrupt was tak-
en) back into their corresponding strategic registers.
The following registers are shadowed: ACC, ACCB,
PREG, ST0, ST1, PMST, ARCR, INDX, TREG0,
TREG1, TREG2.
RETI √ Return From Interrupt
Copy the contents of the top of the stack into the PC
and pop the stack one level. RETI also pops the values
in the shadow registers (stored when the interrupt was
taken) back into their corresponding strategic regis-
ters. The following registers are shadowed: ACC,
ACCB, PREG, ST0, ST1, PMST, ARCR, INDX,
TREG0, TREG1, TREG2.
RFSM
√
Reset Serial Port Frame Synchronization Mode
Reset the FSM status bit to 0.
RHM √ √ Reset Hold Mode
Reset the HM status bit to 0.
ROL
√ √ √
Rotate Accumulator Left
Rotate the accumulator left one bit.
ROLB √ Rotate ACCB and Accumulator Left
Rotate the ACCB and the accumulator left by one bit;
this results in a 65-bit rotation.
ROR √ √ √ Rotate Accumulator Right
Rotate the accumulator right one bit.
RORB
√
Rotate ACCB and Accumulator Right
Rotate the ACCB and the accumulator right one bit;
this results in a 65-bit rotation.
ROVM
√ √ √ √
Reset Overflow Mode
Reset the OVM status bit to 0; this disables overflow
mode.