Texas Instruments TMS320C3x - Manual (Page 567)

Idle Until Interrupt IDLE
13-109 Assembly Language Instructions
Syntax IDLE
Operation 1
→
ST(GIE)
Next PC
→
PC
Idle until interrupt.
Operands None
Opcode
31 24 23 16 8 7 0 15
0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description The global-interrupt-enable bit is set, the next PC value is loaded into the PC,
and the CPU idles until an unmasked interrupt is received. When the interrupt
is received, the contents of the PC are pushed onto the active system stack,
the interrupt vector is read, and the interrupt service routine is executed.
Cycles 1
Status Bits LUF Unaffected
LV Unaffected
UF Unaffected
N Unaffected
Z Unaffected
V Unaffected
C Unaffected
OVM Operation is not affected by OVM bit value.
Example IDLE ; The processor idles until a reset
; or unmasked interrupt occurs.
For correct device operation, the three instructions after a delayed
branch should not be IDLE or IDLE2 instructions.
Mode Bit