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SX Embedded Controller Instruction

CSB fr1,fr2

Description: Compare, skip if below
Operation: ( W = fr1 - fr2 ) > 0 ? PC++
Flags affected: C DC Z
Registers affected: W PC
Sources referenced: fr1 fr2
Cycles: 3
Opcode:
Actually compiles to: mov W, fr2; mov W, fr1-w; snb 3.0
Microchip PIC syntax: MOVF fr2,0; SUBWF fr1,0; BTFSC 3,0
Notes:

Affected by the the CF_ bit in FUSEX (DEVICE CARRYX).

see also: Program Flow Methods - Comparing values

file: /Techref/scenix/inst/csbfr1fr2.htm, 2KB, , updated: 2004/4/5 17:48, local time: 2024/12/23 15:43,
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