KS57C2308/P2308/C2316/P2316
SAM47 INSTRUCTION SET
5-25
ADC
— Add With Carry
ADC
(Continued)
Examples:
3. If ADC A,@HL is followed by an ADS A,#im, the ADC skips on carry to the instruction
immediately after the ADS. An ADS instruction immediately after the ADC does not skip even
if an overflow occurs. This function is useful for decimal adjustment operations.
a. 8 + 9 decimal addition (the contents of the address specified by the HL register is 9H):
RCF
; C
←
"0"
LD
A,#8H
; A
←
8H
ADS
A,#6H
; A
←
8H + 6H = 0EH
ADC
A,@HL
; A
←
0EH + 9H + C(0) =
7H, C
←
"1"
ADS
A,#0AH
; Skip this instruction because C = "1" after ADC result
JPS
XXX
b. 3 + 4 decimal addition (the contents of the address specified by the HL register is 4H):
RCF
; C
←
"0"
LD
A,#3H
; A
←
3H
ADS
A,#6H
; A
←
3H + 6H = 9H
ADC
A,@HL
; A
←
9H + 4H + C(0) = 0DH
ADS
A,#0AH
; No skip. A
←
0DH + 0AH = 7H
; (The skip function for “ADS A,#im” is inhibited after an
; “ADC A,@HL” instruction even if an overflow occurs.)
JPS
XXX
Содержание C2316
Страница 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Страница 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Страница 170: ......
Страница 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Страница 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Страница 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Страница 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Страница 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Страница 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Страница 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
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