-
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... on old text. Propsys uses XOR to print text, means it ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... on old text. Propsys uses XOR to print text, means it ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... )
LD A,(DE)
XOR L
LD (DE),A ... ]
LD A,(DE)
XOR H
LD (DE),A ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... )
LD A,(DE)
XOR L
LD (DE),A ... />
LD A,(DE)
XOR H
LD (DE),A ... -
RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... (hl),0
ldir
xor a
ld b,16 ... value in B (after the XOR A instruction), the greater the ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... )
LD A,(DE)
XOR L
LD (DE),A ... />
LD A,(DE)
XOR H
LD (DE),A ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... before (and thus should be masked out).
The problem ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... before (and thus should be masked out).
The problem ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... and so doesn't get masked out - but that is admittedly ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... /> ld (coords_y), a ;
xor a ;
ld (atflg), a ... /> ld a, 0xff ;
xor l ;
ld l, a ... and c ; mask off
xor l ;
ld (de), ... and b ; mask off
xor h ;
ld (de), ... br />
dwncr:
xor a ; If it doesn't ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
...
ld (coords_y), a
xor a
ld (atflag), a ... )
ld a, (de)
xor l
ld (de), a ...
ld a, (de)
xor h
ld (de), a ... nc
dwncr:
xor a
ld (coords_x), a ... -
fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
... /> rl c
rla
xor (hl)
ld (hl),a ...
ld a,c
xor (hl)
ld (hl),a ... -
New upscaling methodI was reading Boing Boing, and sudenly I read this: [url]http://www.boingboing.net/2011/05/25/converting-pixel-art.html[/url] So I investigated a b…
... significant issues with detecting partially-masked sprites (e.g. only half ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... ; store it in col
xor a ; set a to zero ... /> ret
err_b:
xor a ; set a to zero ... not
do_cr:
xor a ; set A to zero ... ?
jr nz, zend ;
xor a ; reset if so
Development choices, help!As a small part-time project I would like to convert my daily programming work (a workflow/bpel engine) to the Spectrum, purely for fun. I would like…
... that the routine is in XOR mode
xpos = x; printprop ...Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …
Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…
... can change cp 0 to xor a if you want.[/QUOTE ... " or "AND A" over "XOR A", as XOR can change A and ... />
oh, and of course, XOR A is not the same ... as CP 0.. XOR A will set zero flag ...Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…
Doh! Of course it should be AND A not XOR A, no idea why I typed that in especially as it will zero the value for the next CP whatever the value!
Thanks for spotting and correcting that.Help Wanted: Playtest BUGFIXED games!There's an ongoing effort at WoS to fix classic Spectrum games with serious bugs that make them impossible to complete, crash frequently, etc. More d…
... : ld b, $09 ;
c199: xor a ;
c19a: inc hl ... : ld b, $09
a957: xor a
a958: inc hl ...Saving and Loading from tape in MC?I'm actually having problems with saving and loading from the ROM routines for the interpreter... I'm currently using the following codes for saving…
... required option.
[code]
XOR A ;A = $00 for a ...Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
... four frames of a 24x32 masked sprite in zig-zag format ...IN command and keyboard scanning - Is this a bug in BASin?Hi Folks, Still reading Dilwyn Jones book on the Spectrum and I have got to the section on IN and keyboard scanning. I wrote the following wee prog…
... top 3 bits should be masked off ( AND 00011111b ) and they ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... the code accordingly
xor e ; compare BIT 0 from ... from font data)
xor a ; first font byte is ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... the code accordingly
xor c ; compare BIT 0 from ... from font data)
xor a ; first font byte is ...Thinking in Assembly (first efforts)The following is one small routine to educate myself on a few concepts (jumps, flow control, routines, CPI): [code]searchmem xor a …
... />
[code]
searchmem
xor a
ld h,a ... />
[code]
searchmem
xor a
ld h,a ...
