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List of RANDOMIZE USR code effects?Hi chaps, Does anyone have one of these please? Thanks.
... memory location consists of an instruction of the program in ROM ... , or part of an instruction, or an item of data ... to the middle of an instruction or item of data. In ... -
Diagnostics on SpeccyHi, can anyone please tell me what key combo after you reset that you have to hold down to get the diagnostics for the speccy to show itself? I think…
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Better still read the instruction manual!
Steve(spt ... -
Diagnostics on SpeccyHi, can anyone please tell me what key combo after you reset that you have to hold down to get the diagnostics for the speccy to show itself? I think…
... />
Better still read the instruction manual!
Steve(spt ... -
"Name That Game" databaseAs often (sometimes?) requested, I present a first pass at a [url="http://www.srcf.ucam.org/~pak21/spectrum/namethatgame"]Wos Forums Name That Game d…
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Please do not halt your efforts Mr. Kendall. This ... -
Q on scanning books.Those of you with experience scanning books: What is the "best" way to scan them without making creases etc? I am wondering if a hand scanner is t…
... ?, well lookup the ZX Logo instruction manual which I did last ... -
Games Club Week 15Morning all, last week I received the following nominations Magnatron (1 nomination) Zynaps (2 nominations) Rana Rama (2 nominations) I've gone fo…
Games Club Week 15Morning all, last week I received the following nominations Magnatron (1 nomination) Zynaps (2 nominations) Rana Rama (2 nominations) I've gone fo…
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On 2005-06-13 17:58, Bluce_Ree wrote:
And one of the best things was the instruction manual oddly enough.
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How do you mean?Missing InlaysI always check any new tapes i get for MIAs and while they dont come up very often, i do occassionally find alternate inlays or games for which the i…
... games and scanning inlays and instruction manuals (and the odd extra ... in providing scans of the instruction booklets unless they have a ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... and the shifted IXH etc.. instruction groups. Not what I'd ...MASK - is it working yet?Hi everybody, I've been playing with the MASK tzx trying to get it to load... which it doesn't... and I found an old thread saying there was a new d…
... /Multicolor and maybe check Fast HALT emulation ON in Configuration/Emulation ...Games Club week 18Hi, last week I asked for games by Denton Designs and got Cosmic Wartoad Gift From The Gods I've chosen Cosmic Wartoad which you can download [url…
... i had to read the instruction to get it more. i ...Advice needed - Xbox EmulatorsDoes anybody have experiance of using a speccy emulator with an Xbox ? My intention is to install Linux and then try and run an emulator (most like…
... copy of it (along with instruction of how to use it ..."Sinclair Zx Spectrum: Absolutely Better Than Commodore 64"Did you ever read this? [url="http://www.alfonsomartone.itb.it/fztsmo.html"]http://www.alfonsomartone.itb.it/fztsmo.html[/url]
... hardware and it's 6502 instruction set. The 6510, 8500 and ..."Sinclair Zx Spectrum: Absolutely Better Than Commodore 64"Did you ever read this? [url="http://www.alfonsomartone.itb.it/fztsmo.html"]http://www.alfonsomartone.itb.it/fztsmo.html[/url]
... hardware and it's 6502 instruction set. The 6510, 8500 and ...Outrun 2Today I ended up in the seaside resort of Tramore, Co. Waterford. Naturally I headed straight for the video game arcades where I discovered Outrun 2.…
... was brought to an abrupt halt though when the proprietor inadvertently ...PRINT AT in assembler Hello everyone, I am very new to this forums. Like perhaps many others I had a Spectrum as a child and did pretty much simple BASIC programming, bu…
... tells me that the Z80 instruction "CALL NN" is number 205 ...PRINT AT in assembler Hello everyone, I am very new to this forums. Like perhaps many others I had a Spectrum as a child and did pretty much simple BASIC programming, bu…
... tells me that the Z80 instruction "CALL NN" is number 205 ...PRINT AT in assembler Hello everyone, I am very new to this forums. Like perhaps many others I had a Spectrum as a child and did pretty much simple BASIC programming, bu…
... ) was in fact the rom instruction should be called for. When ...PRINT AT in assembler Hello everyone, I am very new to this forums. Like perhaps many others I had a Spectrum as a child and did pretty much simple BASIC programming, bu…
Missing InlaysI always check any new tapes i get for MIAs and while they dont come up very often, i do occassionally find alternate inlays or games for which the i…
... in providing scans of the instruction booklets unless they have a ...Did Sonic the Hedgehog ever come out on the Speccy?Couldn't find anything in the Archive.
... 't use a backward DJNZ instruction. That would be a loop ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... , dmsmith wrote:
Can the instruction EX DE,HL be prefixed ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... , dmsmith wrote:
Can the instruction EX DE,HL be prefixed ...Press any keyI need to write a z80 function that waits for a user to press any key. As it is possible that the user may be pressing a key when the function is cal…
... with zero before the IN instruction. Your code, however, is looping ...Press any keyI need to write a z80 function that waits for a user to press any key. As it is possible that the user may be pressing a key when the function is cal…
... with zero before the IN instruction. Your code, however, is looping ...The best games from 2000 to 2005Hi everybody, I am writing because I need your help, I would like to know which are the best 10 games of these last 5 years, since 2000. All kind of …
... Z flag after a SLL instruction).
Maybe EmuZWin is ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... now officially part of the instruction set of z80 derivatives and ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... now officially part of the instruction set of z80 derivatives and ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
... or FD opcode on an instruction not involving HL (including EX ... effect other than making the instruction 1 byte and 4 tstates ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
As Phil said, there are no 'illegal' opcodes. The only instructions which have no meaning assigned can be found in the ED-prefixed instruction table. When confronted with such an instruction, the Z80 will interpret it as a sort of a 8 T-state NOP.
