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68 EPSON S1C63000 CORE CPU MANUAL
CHAPTER 4: INSTRUCTION SET
ADC [%ir]+,0,n4
ADD %r,%r' Add r' reg. to r reg. 1 cycle
Function: r ← r + r'
Adds the content of the r' register (A or B) to the r register (A or B).
Code: Mnemonic MSB LSB
ADD %A,%A 110010111000X1970H, (1971H)
ADD %A,%B 110010111001X1972H, (1973H)
ADD %B,%A 110010111010X1974H, (1975H)
ADD %B,%B 110010111011X1976H, (1977H)
Flags: EICZ
↓ – ↕↕
Mode: Src: Register direct
Dst: Register direct
Extended addressing: Invalid
Add carry to location [ir reg.] in specified radix and increment ir reg. 2 cycles
Function: [ir] ← N's adjust ([ir] + 0 + C), ir ← ir + 1
Adds the carry (C) to the data memory addressed by the ir register (X or Y). The operation
result is adjusted with n4 as the radix. Then increments the ir register (X or Y). The flags
change due to the operation result of the data memory and the increment result of the ir
register does not affect the flags. The C flag is set by a carry according to the radix. This
instruction is useful for a carry processing of n based counters.
Code:
Mnemonic MSB LSB
ADC [%X]+,0,n4 111010001 [10H-n4] 1D10H–1D1FH
ADC [%Y]+,0,n4 111010011 [10H-n4] 1D30H–1D3FH
Flags: EICZ
↓ – ↕↕
Mode: Src: Register direct
Dst: Register indirect
Extended addressing: Invalid
Note: n4 should be specified with a value from 1 to 16.