-
Spectrum machine language filesHopefully this will get moderated to the correct forum, if I'm in the wrong place.. I've failed to get my old 48K Spectrum microdrive files, via the…
... clearer that these weren't Z80 instruction code files, but Spectrum machine ... -
Game Boy Advance EmulationI've finally got myself a GBA flash cartridge and programmer. I've put ZXAdvance on it and I like the setup. Mildly disappointed that it doesn't ha…
... process only occurs when the Z80 interrupts, and it does everything ... at the start of the interrupt. This helps with games like ... -
TrackSuit Manager Updated?Hello everybody.:p I'm new in this forum, and i would like to know if anyone has information concerning the existance of a TrackSuit Manager update?:…
... ://www.enterupload.com/q2ywm9tr582x/Brit.z80.html"].z80 file[/URL]
Irish and Welsh fans have unfinished team and player names (the ... -
Bit functions speedI just stared nonplussed at the documentation for the bit functions. Apparently, if you're using the accumulator, using AND and OR is faster than se…
... way Zilog extended the instruction set was to add ... to indicate the next instruction was an extended one. ... of the new Zilog instruction went from one byte ... 8-bit instruction set.
The z80's successors ... can fit all the z80 instructions in a single ... -
Bit functions speedI just stared nonplussed at the documentation for the bit functions. Apparently, if you're using the accumulator, using AND and OR is faster than se…
... instruction on the eZ80 is 3 cycles (the fastest on a Z80 ... has a pipeline. The first instruction is executing, the next is ... . The classic Z80 can only deal with one instruction at any one ... little bit on a classic Z80 but it'll make a ... -
Help fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…
... in the instruction set (and I'll grant you the z80 has ... this case
defb 195 ; z80 JP instruction
defw code ; address ... -
Graphics problemHi guys. Finally got a REAL zx spectrum, cost ?20 from a friend. When i draw plots and circles, it takes time to do it, but how do i do it instantly…
... here, I use the Zilog Z80 manual (for reference) and "Mastering ... " is good for understanding the interrupt modes.
I can ... -
Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]
... 1 waitstate into every Z80's M1 cycle (instruction fetch), regardless of ... shortest memory read cycle for Z80, a half clock cycle shorter ... is not part of the Z80's memory map, but fully ... -
Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]
... 1 waitstate into every Z80's M1 cycle (instruction fetch), regardless of ... shortest memory read cycle for Z80, a half clock cycle shorter ... is not part of the Z80's memory map, but fully ... -
Some Beeper TunesAfter doing a verion of [URL="http://freestuff.grok.co.uk/vbspec/popcorn.szx"]popcorn[/URL] a few weeks back, I got a bit carried away with doing a f…
... /> I don't know. Actually Z80 as a sound generator has ... not separate channel, they always interrupt the tone channels. So it ...
