Search results
From Learn @ Cemetech
Jump to navigationJump to searchCreate the page "Z80 Opcodes" on this wiki! See also the search results found.
Page title matches
- ...be set to interrupt mode 1 (OS interrupts) or interrupt mode 2 using [[Z80:Opcodes:IM|IM]]. Be sure to re-enable interrupt mode 1 before returning to the OS. ...:Opcodes:IM|IM]],[[Z80:Opcodes:RETI|RETI]],[[Z80:Opcodes:RETN|RETN]],[[Z80:Opcodes:RST|RST]]542 bytes (76 words) - 22:07, 5 February 2016
- Performs a [[Z80:Opcodes:RRC|RRC A]] faster and modifies the flags differently. ...pcodes:SLA|SLA]],[[Z80:Opcodes:SLL|SLL/SL1]],[[Z80:Opcodes:SRA|SRA]],[[Z80:Opcodes:SRL|SRL]]899 bytes (144 words) - 22:29, 5 February 2016
- Not used by TI calculators, but means that an external device plugged into a z80 device generates the interrupt. ...and 150). Every time an interrupt is encountered, the OS performs an [[Z80:Opcodes:RST|RST]] $28.2 KB (248 words) - 22:15, 5 February 2016
- ...[Z80:Opcodes:OR|OR]],[[Z80:Opcodes:RES|RES]],[[Z80:Opcodes:SCF|SCF]],[[Z80:Opcodes:XOR|XOR]] [[Category:Z80 Assembly]]899 bytes (142 words) - 22:37, 5 February 2016
- ...80:Opcodes:IM|IM]],[[Z80:Opcodes:RET|RET]],[[Z80:Opcodes:RETI|RETI]],[[Z80:Opcodes:RETN|RETN]] [[Category:Z80 Assembly]]1,013 bytes (146 words) - 22:00, 5 February 2016
- ...[Z80:Opcodes:DJNZ|DJNZ]],[[Z80:Opcodes:JP|JP]],[[Z80:Opcodes:JR|JR]],[[Z80:Opcodes:RET|RET]] [[Category:Z80 Assembly]]2 KB (249 words) - 22:22, 5 February 2016
- ...pcodes:CPI|CPI]],[[Z80:Opcodes:CPIR|CPIR]],[[Z80:Opcodes:RETI|RETI]],[[Z80:Opcodes:RETN|RETN]] [[Category:Z80 Assembly]]1 KB (211 words) - 22:43, 5 February 2016
- ...pcodes:OUT|OUT]],[[Z80:Opcodes:OUTD|OUTD]],[[Z80:Opcodes:OTDR|OTDR]],[[Z80:Opcodes:OUTI|OUTI]] [[Category:Z80 Assembly]]850 bytes (132 words) - 22:07, 5 February 2016
- [[Z80:Opcodes:CPL|CPL]],[[Z80:Opcodes:SUB|SUB]] [[Category:Z80 Assembly]]677 bytes (97 words) - 22:30, 5 February 2016
Page text matches
- ...80:Opcodes:IM|IM]],[[Z80:Opcodes:RET|RET]],[[Z80:Opcodes:RETN|RETN]],[[Z80:Opcodes:RST|RST]] [[Category:Z80 Assembly]]647 bytes (95 words) - 22:21, 5 February 2016
- ...80:Opcodes:DEC|DEC]],[[Z80:Opcodes:INC|INC]],[[Z80:Opcodes:SBC|SBC]],[[Z80:Opcodes:SUB|SUB]] [[Category:Z80 Assembly]]1 KB (195 words) - 22:22, 5 February 2016
- ...tinuously call the interrupt code once interrupts are reenabled with [[Z80:Opcodes:EI|EI]]. * Address 4000h ~ 7FFFh: Memory Bank A (Page selected in [[Z80:Ports:Port06|port06]])6 KB (925 words) - 08:10, 6 February 2016
- Repeats the instruction [[Z80:Opcodes:LDD|LDD]] (Does a LD (DE),(HL) and decrements each of DE, HL, and BC) until [[Z80:Opcodes:LD|LD]],[[Z80:Opcodes:LDD|LDD]],[[Z80:Opcodes:LDI|LDI]],[[Z80:Opcodes:LDIR|LDIR]]822 bytes (129 words) - 22:05, 5 February 2016
- Repeats [[Z80:Opcodes:LDI|LDI]] (LD (DE),(HL), then increments DE, HL, and decrements BC) until B [[Z80:Opcodes:LD|LD]],[[Z80:Opcodes:LDD|LDD]],[[Z80:Opcodes:LDDR|LDDR]],[[Z80:Opcodes:LDI|LDI]]789 bytes (118 words) - 22:10, 5 February 2016
- ...:Opcodes:LDD|LDD]],[[Z80:Opcodes:LDDR|LDDR]],[[Z80:Opcodes:LDI|LDI]],[[Z80:Opcodes:LDIR|LDIR]] Source: [http://www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080&extn=.pdf]4 KB (533 words) - 08:25, 6 February 2016
- [[Z80:Opcodes:LD|LD]],[[Z80:Opcodes:LDDR|LDDR]],[[Z80:Opcodes:LDI|LDI]],[[Z80:Opcodes:LDIR|LDIR]] [[Category:Z80 Assembly]]724 bytes (119 words) - 22:05, 5 February 2016
- [[Z80:Opcodes:LD|LD]],[[Z80:Opcodes:LDD|LDD]],[[Z80:Opcodes:LDDR|LDDR]],[[Z80:Opcodes:LDIR|LDIR]] [[Category:Z80 Assembly]]656 bytes (101 words) - 22:43, 5 February 2016
- [[Z80:Directives|Directives]] ...but it's effects may, and usually are in the program. An example is the [[Z80:Directives:ORG|.org]] directive, which itself is not included into the prog5 KB (862 words) - 07:34, 6 February 2016
- DJNZ is a very useful instruction when it comes to creating loops. See [[Z80:Control Structures|Control Structures]] to find out more about loops. [[Z80:Opcodes:CALL|CALL]],[[Z80:Opcodes:JP|JP]],[[Z80:Opcodes:JR|JR]]830 bytes (127 words) - 08:00, 6 February 2016
- 1. Because using bitwise [[Z80:Opcodes:AND|AND]] on a set bit doesn't change anything, this operation will preserv ...the bits unchanged instead of resetting. To reset all the bits, use [[Z80:Opcodes:AND|AND]] 0.1 KB (184 words) - 07:35, 5 February 2016
- [[Z80:Opcodes:DI|DI]],[[Z80:Opcodes:EI|EI]],[[Z80:Opcodes:NOP|NOP]] [[Category:Z80 Assembly]]901 bytes (144 words) - 22:39, 5 February 2016
- ...als|Tutorials]], [[Z80:Directives|Directives]], [[Z80:Opcodes|Opcodes]], [[Z80:Appendices|Other References]]) ...with permission from an administrator from [http://z80-heaven.wikidot.com/ Z80 Heaven]. Like the original content, these pages are licensed under the [htt3 KB (450 words) - 23:51, 25 May 2020
- ...you want to load a 16-bit register into another 16-bit register (the [[Z80:Opcodes:LD|LD]] instruction won't work for this). [[Z80:Opcodes:PUSH|PUSH]]983 bytes (150 words) - 22:06, 5 February 2016
- ...you want to load a 16-bit register into another 16-bit register (the [[Z80:Opcodes:LD|LD]] instruction won't work for this). [[Z80:Opcodes:POP|POP]]891 bytes (132 words) - 01:53, 14 March 2017
- [[Z80:Opcodes:CPL|CPL]],[[Z80:Opcodes:SUB|SUB]] [[Category:Z80 Assembly]]677 bytes (97 words) - 22:30, 5 February 2016
- [[Z80:Opcodes:NEG|NEG]],[[Z80:Opcodes:XOR|XOR]] [[Category:Z80 Assembly]]669 bytes (106 words) - 22:38, 5 February 2016
- [[Z80:Opcodes:SCF|SCF]] [[Category:Z80 Assembly]]578 bytes (86 words) - 22:11, 5 February 2016
- [[Z80:Opcodes:EXX|EXX]] [[Category:Z80 Assembly]]1 KB (176 words) - 22:16, 5 February 2016
- [[Z80:Opcodes:CCF|CCF]] [[Category:Z80 Assembly]]513 bytes (75 words) - 22:22, 5 February 2016
