Stack
Push Pull onto the stack
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|
| \((SP-2) \longleftarrow qq_l, (SP-1) \longleftarrow qq_h\) | ||||||||
| PUSH qq | ||||||||
| 1 | 1 | 0 | 1 | 0 | 1 | |||
| \((SP-2) \longleftarrow IX_l, (SP-1) \longleftarrow IX_h\) | ||||||||
| PUSH IX | ||||||||
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | DD |
| 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | E5 |
| \((SP-2) \longleftarrow IY_l, (SP-1) \longleftarrow IY_h\) | ||||||||
| PUSH IY | ||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | FD |
| 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | E5 |
| \(qq_h \longleftarrow (SP-1), qq_l \longleftarrow (SP)\) | ||||||||
| POP qq | ||||||||
| 1 | 1 | 0 | 0 | 0 | 1 | |||
| \(IX_h \longleftarrow (SP-1), IX_l \longleftarrow (SP)\) | ||||||||
| POP IX | ||||||||
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | DD |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | E1 |
| \(IY_h \longleftarrow (SP-1), IY_l \longleftarrow (SP)\) | ||||||||
| POP IY | ||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | FD |
| 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | E1 |
| Value | |
|---|---|
| 00 | BC |
| 01 | DE |
| 10 | HL |
| 11 | AF |
Flags Affected
| None. |
Opcode Matrix
| AF | BC | DE | HL | IX | IY | |
|---|---|---|---|---|---|---|
| PUSH |
PUSH AF
F5111 |
PUSH BC
C5111 |
PUSH DE
D5111 |
PUSH HL
E5111 |
PUSH IX
DDE5215 |
PUSH IY
FDE5215 |
| POP |
POP AF
F1110 |
POP BC
C1110 |
POP DE
D1110 |
POP HL
E1110 |
POP IX
DDE1214 |
POP IY
FDE1214 |
|
Instruction
Opcode hexSize bytesCycle count
| Memory |
Last modified November 16, 2021: Set section ordering so most common instructions are at the start (c5a7b1f)