II-118
EPSON
S1C6S3N2 TECHNICAL SOFTWARE
CHAPTER 8: CPU
NBP ..... New bank pointer
NPP ..... New page pointer
PCB ..... Program counter bank
PCP ..... Program counter page
PCS ..... Program counter step
PCSH .. Four high order bits of PCS
PCSL ... Four low order bits of PCS
F ......... Flag register (I, D, Z, C)
C ......... Carry flag
Z ......... Zero flag
D ......... Decimal flag
I .......... Interrupt flag
↓ .............
Flag reset
↑ .............
Flag set
↕
.......... Flag set or reset
p ......... Five-bit immediate data or label 00H–1FH
s .......... Eight-bit immediate data or label 00H–0FFH
l .......... Eight-bit immediate data 00H–0FFH
i .......... Four-bit immediate data 00H–0FH
+ ......... Add
- .......... Subtract
∧ .............
Logical AND
∨ .............
Logical OR
∀ ............
Exclusive-OR
★
......... Add-subtract instruction for decimal operation
when the D flag is set
Symbols associated with
program counter
Symbols associated with
flags
Associated with
immediate data
Associated with
arithmetic and other
operations
Содержание S1C6S3N2
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