upd75238 Renesas Electronics Corporation., upd75238 Datasheet - Page 158
upd75238
Manufacturer Part Number
upd75238
Description
4 Bit Single-chip Microcomputer
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD75238.pdf
(190 pages)
- Current page: 158 of 190
- Download datasheet (2Mb)
158
Instruction
Increment/
decrement
Compari-
son
Carry flag
manipula-
tion
Mnemonic
INCS
DECS
SKE
SET1
CLR1
SKT
NOT1
reg
rp1
@HL
mem
reg
rp’
reg,#n4
@HL,#n4
A,@HL
XA,@HL
A,reg
XA,rp’
CY
CY
CY
CY
Operand
Number
of bytes
1
1
2
2
1
2
2
2
1
2
2
2
1
1
1
1
Machine
cycle
1 + S
1 + S
2 + S
2 + S
1 + S
2 + S
2 + S
2 + S
1 + S
2 + S
2 + S
2 + S
1 + S
1
1
1
reg
rp1
(HL)
(mem)
reg
rp’
Skip if reg = n4
Skip if (HL) = n4
Skip if A = (HL)
Skip if XA = (HL)
Skip if A = reg
Skip if XA = rp’
CY
CY
Skip if CY = 1
CY
1
0
CY
reg + 1
rp1 + 1
reg - 1
rp’ - 1
(HL) + 1
(mem) + 1
Operation
Address-
ing area
*1
*3
*1
*1
*1
reg = 0
rp1 = 00H
(HL) = 0
(mem) = 0
reg = FH
rp’ = FFH
reg = n4
(HL) = n4
A = (HL)
XA = (HL)
A = reg
XA = rp’
CY = 1
Skip
condition
PD75238
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