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Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…
... [/url]
Uses a screen buffer in linear format, not the ... same way the screen memory is stored. I find ... -
Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…
... part is cleared directly in screen by PUSH. At some points, like ... one, the background overlaping upper screen is drawn by sprites. Agent ... -
Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…
... is cleared directly in screen by PUSH. At some points, ... the background overlaping upper screen is drawn by sprites. ... rest of the screen, it uses PUSH to draw four ... you can move the screen pointer anywhere in RAM, ... using different patterns of PUSH to draw them. ... -
llvm-z80 statusFew months ago I read about efforts to produce llvm back-end for the Z80 (even perhaps as part of new z88dk). Any update on that? I found [URL="htt…
...
main:
push ix
push de
push bc
ld ix ... /> ld hl, 0
pop bc
pop de
pop ... -
Game of Life.Last year (I think) or maybe the year before, I entered a Game of Life simulator into the CSS CGC compo but for the Sinclair ZX81. I decided to port…
... byte (8+32+1)
push hl
pop ix
LoopR: push bc
push ix
ld b,30
LoopB: push bc
ld a," "
ld hl,0
ld bc ... -
Simple text scrolling routine...I'm having trouble writing a very simple text scroller, the idea is to use the ROM printer routine to print 32 characters each time the routine is ca…
... de
push bc
push de
ld bc,(23688) ;BC=S_POSN
ld (23688),bc ;the print position one ... /> pop de
pop bc
djnz loop
... ld de,dat2
ld bc,datz-dat2-1
... -
Bug fixing woesGaahhhh! I've spent an afternoon off work agonizing over why my routine didn't work. It's something I'd already restarted so didn't want to wipe th…
... /> ld b,a
cslp push bc
call cspr
ld ... /> add ix,de
pop bc
djnz cslp
ret ... -
Making noises with the AYHow do you go about making noises from the AY chip in machine code? I'm wanting to make a pulsating humming noise that increases in volume as you ge…
... (C),D
LD BC,49149
INC HL
outAYloop PUSH BC
outAY LD BC,65533
OUT ... /> INC D
POP BC
DJNZ outAYloop
... -
Making noises with the AYHow do you go about making noises from the AY chip in machine code? I'm wanting to make a pulsating humming noise that increases in volume as you ge…
... ]
push bc
push de
push hl
push ix
push af
pop de
pop bc[/CODE]
Then to ... -
Help needed with a bit of code...My minds gone blank again I'm afraid, I'm having trouble with this routine that loads variables into memory then calls the corresponding routine. Th…
... +1),de
push de
push hl
push bc
caller call ... 56000
pop bc
clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
... B,C0H
_1 PUSH BC
PUSH HL
LD E,L ... /> LD (HL),00H
LD BC,001FH
LDIR
POP ...
CALL _2
POP BC
DJNZ _1
clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…
... is 24*21 + 16) from "PUSH BC" to "DJNZ" plus the first ...Megatree DevelopmentHi All, I have been messing around with developing a concept for the unwritten game Megatree. Here is a video of what I have so far written on a 48…
... objects move all over the screen and in front of and ... the sprites print to the screen buffer before the large tree is ... sprites are printed to the buffer before the tree, it isn ... is copied to the visible screen.64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... HL,40000 ;create test buffer
LD BC,3072
Start2
LD A,(BC)
BIT 0,A
INC HL
DEC BC
LD A,B
GFX viewer from TZX/SnapshotsHello All, I use Spin .7 to view memory of games so I could find the GFX, but it's very buggy, does anyone know of something similar?
... (tile size, does it use screen buffer etc.) it is the first ...Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
... ).
- But as my screen printing, drawing routines and all ... involved just copying the game screen buffer around and watching how ... the new sprite routines and screen handling routines were written ... bug on the controls option screen
Pressing 9 ...Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... :8823p ...
push af
push hl
push bc
ld hl ... , (random_00)
push hl
bc
ld bc, 197
add hl, bc
ld bc, (random_02 ...Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... :8823p ...
push af
push hl
push bc
ld hl ... , (random_00)
push hl
bc
ld bc, 197
add hl, bc
ld bc, (random_02 ...zx assemblers and syntax differencesHi I am using Zxspin and am using the Assembler editor. I am a novice and was wondering if there is a syntax manual for the zxspin assembler. I am…
Vertical XOR filler.. anyone?Hi, I was just wondering whether a vertical filler using XOR has ever been used on Speccy demos/games and if yes when for the first time? Just tryin…
... ;two bytes from a linear screen buffer (Y in L, X in ...Vertical XOR filler.. anyone?Hi, I was just wondering whether a vertical filler using XOR has ever been used on Speccy demos/games and if yes when for the first time? Just tryin…
... ;two bytes from a linear screen buffer (Y in L, X in ...Double height text...<p>Is here any good routines for printing a font double height?</p><p>I've concocted this ridiculous routine but I'm sure it can be done much better.…
... ,c)=USR DoubleHeight
;LET bc=FN d(d$,r,c ...Multiplying. Again.Is there a faster way of hl=a*32 than doing add hl,hl 6 times?<div><br></div><div>I get the feeling that working with 8 bit registers for most of it …
... character codes to the back-screen in the CharAde engine I ... reading numbers back from the screen buffer, forgetting that the values are ...Tau Day<br>By popular demand (well, demand of one, which is highly popular in the sorts of things I do :D ), here is a small celebration of tau day, June 28…
... ))
push bc ; save AC
push de
push hl
push bc ; push x
push de
push hl
Execution map file support in different emulatorsAs I'm now seeking about execution map files, the different emulators support, I want to start a new discussion here. Today, I tried to create a mem…
... PC = 0039 tstate = 00035 PUSH HL
PC = 003A tstate ... /> PC = 0048 tstate = 00104 PUSH BC
PC = 0049 tstate = ... 00115 PUSH DE
PC = 004A tstate ... PC = 0293 tstate = 00177 LD BC,#FEFE
[/code]
...Execution map file support in different emulatorsAs I'm now seeking about execution map files, the different emulators support, I want to start a new discussion here. Today, I tried to create a mem…
... PC = 0039 tstate = 00035 PUSH HL
PC = 003A tstate ... /> PC = 0048 tstate = 00104 PUSH BC
PC = 0049 tstate = ... 00115 PUSH DE
PC = 004A tstate ... PC = 0293 tstate = 00177 LD BC,#FEFE
[/code]
...Could ELITE's wireframe graphics be improvedWas watching this video last night comparing the BBC and Spectrum version of Elite: https://www.youtube.com/watch?v=Ov4OAteeGWs It seems that the…
... for the bbc 1-bit screen mode, apparently it was so ... setup a 1-bit linear screen buffer, converted the algorithms directly from ... copied it to the Speccy screen.
Not sure if ... drawing routines for the Speccy screen layout or not. I've ...
