NEC PD75402A - Manual (Page 49)

38
CHAPTER 4. INTERNAL CPU FUNCTIONS
Fig. 4-8 Data Saved to Stack Memory
Stack Stack Stack
Register Pair
Low Order
Register Pair
High Order
SP - 2
SP - 1
SP
SP - 2
SP - 1
SP
SP - 4
SP - 3
PC10 - PC8 0
0 0 0 0
PC3 - PC0
PC7 - PC4
SP - 2
SP - 1
SP
SP - 4
SP - 3
SP - 6
SP - 5
PC10 - PC8 0
0 0 0 0
PC3 - PC0
PC7 - PC4
0 IST0 0 0
CY SK2 SK1 SK0
PSW
PUSH Instruction CALLF Instruction Interrupt
Fig. 4-9 Data Restored from Stack Memory
Stack Stack Stack
Register Pair
Low Order
Register Pair
High Order
SP + 1
SP + 2
SP PC10 - PC8 0
0 0 0 0
PC3 - PC0
PC7 - PC4
PC10 - PC8 0
0 0 0 0
PC3 - PC0
PC7 - PC4
0 IST0 0 0
CY SK2 SK1 SK0
PSW
POP Instruction RET, RETS Instruction RETI Instruction
SP + 1
SP + 2
SP
SP + 3
SP + 4
SP + 1
SP + 2
SP
SP + 3
SP + 4
SP + 5
SP + 6