Maintenance script: Initial automated import

2016-02-05T21:57:09Z

Initial automated import

New page

Absolute jumps to the address. Can be conditional or unconditional. JP takes one more byte than [[Z80:Opcodes:JR|JR]], but is also slightly faster, so decide whether speed or size is more important before choosing JP or [[Z80:Opcodes:JR|JR]]. JP (HL), JP (IX), and JP (IY) are unconditional and are the fastest jumps, and do not take more bytes than other jumps.

== Syntax ==



JP NN ;unconditional jump
JP cond.,NN ;conditional jump
JP (reg16) ;HL, IX and IY only

=== Allowed Instructions ===



;Constants
JP NN ;no condition
JP C,NN ;jumps if C is set
JP NC,NN ;jumps if C is reset
JP Z,NN ;jumps if Z is set
JP NZ,NN ;jumps if Z is reset
JP M,NN ;jumps if S is set
JP P,NN ;jumps if S is reset
JP PE,NN ;jumps if P/V is set
JP PO,NN ;jumps if P/V is reset

;HL points to address
JP (HL)

;IX points to address
JP (IX)

;IY points to address
JP (IY)

== Effects ==


All flags preserved.

== Uses ==


== T-States ==
cc is condition: NZ, Z, NC, C, PO, PE, P, M
{|
| XX || 10
|-
| cc,XX || 10
|-
| (hl) || 4
|-
| (ix) || 8
|-
| (iy) || 8
|}

== See Also ==


[[Z80:Opcodes:BIT|BIT]],[[Z80:Opcodes:CALL|CALL]],[[Z80:Opcodes:CP|CP]],[[Z80:Opcodes:CPD|CPD]],[[Z80:Opcodes:CPDR|CPDR]],[[Z80:Opcodes:CPI|CPI]],[[Z80:Opcodes:CPIR|CPIR]],[[Z80:Opcodes:DJNZ|DJNZ]],[[Z80:Opcodes:JR|JR]]

{{lowercase}}
[[Category:Z80 Assembly]]
[[Category:Z80 Heaven]]
[[Category:Z80 Opcodes]]

Z80:Opcodes:JP - Revision history

Maintenance script: Initial automated import