CALL

Pushes the address after the CALL instruction (PC+3) onto the stack and jumps to the label. Can also take conditions.

Syntax

call label            ;unconditional call
call cond.,label        ;conditional call

Allowed Instructions

call label        ;always calls

call c,label        ;calls if C flag is set
call nc,label        ;calls if C flag is reset

call z,label        ;calls if Z flag is set
call nz,label        ;calls if Z flag is reset

call m,label        ;calls if S flag is set
call p,label        ;calls if S flag is reset

call pe,label        ;calls if P/V is set
call po,label        ;calls if P/V is reset

Effects

Flags are preserved.

Uses

The most common use of CALL is to create routines that can be used multiple times.

T-States

cc is condition: NZ, Z, NC, C, PO, PE, P, M

XX

17

	condition true	condition false
cc,XX	17	10

See Also

BIT,CP,CPD,CPDR,CPI,CPIR,DJNZ,JP,JR,RET