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BIN2BAS (load BASIC text into emulator) utilityI've nearly finished testing this. It allows a BASIC program to be loaded from a text file in any emulator which has a "load binary" option. I was wo…
... the first time the Shadow ROM is paged, not only does ... : PAUSE 3: PLAY "ABCDE","abcde": PLOT INK 2;5,6
Keyboard scanning routines / techniques?What keyboard scanning routines or techniques do people use? I'm looking to write something which doesn't rely on the ROM-based keyboard scanner, an…
... (although I separate out the assembler into a .s file as ... I don't like inline assembler - yes I could worry about ... , but retaining compatibility with the ROM code. Then I want to ...Keyboard scanning routines / techniques?What keyboard scanning routines or techniques do people use? I'm looking to write something which doesn't rely on the ROM-based keyboard scanner, an…
... (although I separate out the assembler into a .s file as ... I don't like inline assembler - yes I could worry about ... RAM using IM2 and in ROM.
There are also ...ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…
... to see them inside ZX-Assembler somehow.
...
[*] BTW calls to ROM routines should be automatically identified ... to the middle of a ROM routine like address $0e9e ... the identification process. ZX-Assembler should be the best option ...ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…
... begin to learn programming in assembler. [/QUOTE]
... Saukas]BTW calls to ROM routines should be automatically ... to the middle of a ROM routine like address $0e9e ... . For undefined addresses, ZX-Assembler now produces labels automatically, such ...Varios +3(e)DOS questions?I'm converting tape games to disk, for being used in my +3e. I'm trying to convert them to standard BASIC loaders, so files could be copied using BAS…
... saving the BIN files. The assembler fragments at the end are ...CODE SCREEN$ in MCIs there any way of determining what character is displayed at a certain co-ordinate from machine code like the 'IF CODE SCREEN$=' arrangement in bas…
... may call to the ROM routine (PASMO assembler):
[code]S_SCRNS_BC ...Colour whilst PLOTing in MCI am using the ROM PLOT routine at $22E5, how do I control the colour of the results, so I can preferably use INK 8, it seems to have a mind of its o…
... ;708459]I am using the ROM PLOT routine at $22E5, how do ...Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
Ewww. Calling the ROM routine to plot a pixel? WTFingF?
...Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
... /> Why are you using ROM routines to plot a pixel to the ...Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
I've done an assembler version now. I wrote a ... to 9999, as using the ROM routines was too slow. They ... Andre Adrian for the original assembler version
; 981 REM http ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... /> (May as well let the assembler do the sums for me ... with a flag byte. The ROM loader needs it to distinguish ...Confounded DEF FNCan anyone see why this is going wrong? I've been tinkering with it since tea time and got nowhere. [code] 2 DEF FN t$(n,t,d) =STR$ INT (n/t)…
To Crisis.
The ROM routine dealing with quotes is $ ... it in 175 bytes of assembler. The counterpoint to that is ... temporary workspace which, presumably, an assembler version would not.
RND cyclical behaviourGood evening. I'm playing with RND function to show its cyclical behaviour, i.e. after 65536 calls to it, the next one will return the same value of …
Here's a bit of assembler to do the same thing. ... ;end_calc
call $2da2 ;FP_TO_BC = PLOT coordinates
ld hl,$afff ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... in Audacity this evening. The ROM loader copes with them, ... reasonably-defined pulses in the ROM-timing blocks. But the ... more than is necessary. The ROM loader timings are conservative for ... could be switchable with an assembler directive, so I could have ...Didaktik Gama and M manualsI?m looking for manuals for the Czech Spectrum clones Didaktik Gama and M. Thought this would be an easy task, but I couldn?t find any user or servic…
... copiers for D40/D80. 16kB rom in Didaktik Gama contain ZX48 ... rom with some modifications. For example ... Exist more versions of rom for DG80. Rom also contain routine for ... of paging port than in assembler.
And parallel ...Possible dodgy +2 - resets when loadingSo I have a grey model +2 with a recently refurbed tape deck (new belts and cleaned heads). It might be a product of bad loading, but from what I ca…
... .php?t=40495"]TESTROM3 - utility/rom for test your ZX [/URL ... you will need an assembler or cross-assembler to "make" a working ...Machine code optimisationI'm geting back into z80 coding and wonder what the best way of showing how efficient the code is. I've got Rodney Zaks book and see there are timin…
... and "Updating BASIC variables from assembler" sections. There's also examples ... asm]Ten Bouncy UDGs in Assembler[/url] listing which I ... a BASIC number array from assembler; you'll need Toni ... ins/zx-comp/mccalc.zip]ROM calculator[/url] feature for reference ...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... is still waiting in the assembler window. However, writing code ... lost, but also the assembler itself needs to be loaded ... tape every time? Were there ROM cartridge based assemblers that made ... g. Opus etc) then reloading assembler and reloading code was the ...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
Sounds like a ROM cartridge based assembler, or better still a device ... Multiface with a built in assembler that would be available ... . Perhaps the built in assembler could even make use of ... ever seeing a hardware based assembler/disassembler solution for the ...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... an Interface 2 and an assembler on ROM cartridge? Or a Multiface ...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... an Interface 2 and an assembler on ROM cartridge? Or a Multiface ... -type interface with an assembler firmware?[/QUOTE ... had Protext and Maxam on ROM they could work together, so ...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... easier, it supported software on ROM much better and disk drives ... . A 6128 with Maxam on ROM is about the best 8 ... , so loading back into the assembler after a crash took about ... /> I liked Zeus as an assembler but like almost everything else ...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
Would it be a really bad idea if the Spectrum came with a good assembler in ROM instead of BASIC? :DExperimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... a tutorial about converting ordinary ROM-loader files into 47-loader ... executable that takes a standard ROM loader file and spits out ... , theming requires a load of assembler code to be written; however ...display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... I no longer have Z80 assembler skills (I forgot it all ... have shown that we can plot direct to the screen in ...SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... 's great to have a ROM that can be distributed with ... now use the entire display: PLOT 0, -16: DRAW 255, 191 ... code for improved readability.
[*]ROM switching service routine.
[*]SAVE ...
