Cmpeqa, Compare for equal (agu), Operation assembler syntax – Freescale Semiconductor StarCore SC140 User Manual
Page 435
CMPEQA
SC140 DSP Core Reference Manual
A-121
CMPEQA
Compare for Equal (AGU)
CMPEQA
Description
Status and Conditions that Affect Instruction
Status and Conditions Changed by Instruction
Example
cmpeqa r1,r2
Operation
Assembler Syntax
If rx == Rx, then 1
→ T, else 0 → T
CMPEQA rx,Rx
CMPEQA rx,Rx
Compares two AGU registers (rx and Rx) for equality. Note that a register cannot be compared to itself
using this instruction.
Register Address
Bit Name
Description
SR[18]
EXP
Determines which stack pointer is used when the stack pointer is an
operand. Otherwise, the instruction is not affected by SR.
Register Address
Bit Name
Description
SR[1]
T
Sets T bit if equal, otherwise cleared.
Register/Memory Address
Before
After
R1
$0000 0005
R2
$0000 0005
SR
$00E4 0000
$00E4 0002