SN8P2977
8-Bit Micro-Controller with Regulator, PGIA, 24-bit ADC
SONiX TECHNOLOGY CO., LTD
Page 34
V1.7
If the destination increased by 1, which results overflow of 0xFF to 0x00, the PC will add 2 steps to skip next
instruction.
INCS instruction:
INCS
BUF0
JMP
C0STEP
; Jump to C0STEP if ACC is not zero.
…
…
C0STEP:
NOP
INCMS instruction:
INCMS
BUF0
JMP
C0STEP
; Jump to C0STEP if BUF0 is not zero.
…
…
C0STEP:
NOP
If the destination decreased by 1, which results underflow of 0x01 to 0x00, the PC will add 2 steps to skip next
instruction.
DECS instruction:
DECS
BUF0
JMP
C0STEP
; Jump to C0STEP if ACC is not zero.
…
…
C0STEP:
NOP
DECMS instruction:
DECMS
BUF0
JMP
C0STEP
; Jump to C0STEP if BUF0 is not zero.
…
…
C0STEP:
NOP