Registers – Oki MSM66P201 User Manual
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MSM66201/66P201/66207/66P207
REGISTERS
Accumulator
ACC
15
0
Control Register (CR)
PSW
Bit 15 : Carry flag (CY)
Bit 14 : Zero flag (ZF)
Bit 13 : Half carry flag (HC)
Bit 12 : Data descriptor (DD)
Bit 8 : Master interrupt priority flag (MIP)
Bit 9,5,4: User flag (MIP)
Bit 2-0
: System control base 2-0 (SCB2-0)
PC
LRB
SSP
15
0
15
0
X1
X2
DP
USP
Index Register 1
Index Register 2
Data Pointer
User Stack Pointer
15
0
Pointing Register (PR)
Local Register
R1
R3
R5
R7
R0
R2
R4
R6
ER0
ER1
ER2
ER3
7
0 7
0