- `INSN_stack_AF: `EXEC_WRITE(`_SP - 1, `_F)
- `INSN_stack_BC: `EXEC_WRITE(`_SP - 1, `_C)
- `INSN_stack_DE: `EXEC_WRITE(`_SP - 1, `_E)
- `INSN_stack_HL: `EXEC_WRITE(`_SP - 1, `_L)
+ `INSN_stack_AF: `EXEC_WRITE(`_SP - 2, `_F)
+ `INSN_stack_BC: `EXEC_WRITE(`_SP - 2, `_C)
+ `INSN_stack_DE: `EXEC_WRITE(`_SP - 2, `_E)
+ `INSN_stack_HL: `EXEC_WRITE(`_SP - 2, `_L)