ret
Return
Pops the top stack entry into PC, either always or only when a flag condition is met.
11/5 cycles: 11 when it returns, 5 when it does not
Used in
- call, ret and passing valuesZ80 assembly
- Ports: in and outZ80 assembly
- Interrupts: im, ei, di and haltZ80 assembly
- A subroutine with its arguments in registersZ80 assembly
- Stack arguments and a stack frameZ80 assembly
- Recursion: factorial and FibonacciZ80 assembly
- Print a stringZ80 assembly
- Read two numbers and print their sumZ80 assembly
- Print a number in any base without helpZ80 assembly
- The snake gameZ80 assembly
SZHP/VNC ––––––
- Changes no flag
Forms
ret1 byte · 10 cyclesThe top stack entry is popped into PC.
-
If the condition
ccis true, the top stack entry is popped into PC.
Pseudo-instructions
Other spellings the assembler accepts; each form shows the instruction it becomes.
-
If the condition
ccis true, the top stack entry is popped into PC.
Operands
cc- A flag condition:
nz(zero flag clear,Z = 0),z(zero flag set,Z = 1),nc(carry flag clear,C = 0),c(carry flag set,C = 1),po(parity/overflow flag clear,P/V = 0),pe(parity/overflow flag set,P/V = 1),p(sign flag clear,S = 0),m(sign flag set,S = 1),nv(alias forpo,P/V = 0) orv(alias forpe,P/V = 1). Herectests the carry flag; it does not name thecregister. More
.org 0x8000
ret nz
halt