Freescale Semiconductor StarCore SC140 - Manual (Page 441)

CMPGTA
SC140 DSP Core Reference Manual A-127
CMPGTA
Compare for Greater Than (AGU)
CMPGTA
Description
Status and Conditions that Affect Instruction
Status and Conditions Changed by Instruction
Example
cmpgta r2,r3
Operation Assembler Syntax
Rx > rx
→ T
CMPGTA rx,Rx
CMPGTA rx,Rx
Compares two signed AGU registers (rx and Rx) and sets the T bit if the second AGU register is greater
than the first, or clears the T bit if the second AGU register is not greater than the first. 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 the T bit if Rx > rx, otherwise cleared.
Register/Memory Address Before After
R2 $0000 35FA
R3 $0000 34EA
SR $00E4 0002 $00E4 0000