-
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…
... so we can add hl,bc for screen address
... as %00CCCCCc
;; Formula: screen + ((row & 0x18) 1) ... write background color to screen
add hl,bc ; next line< ... write background color to screen
add hl,bc ; next line< ... -
NTSC Compatibility?Correct me if I'm wrong, but wasn't the Timex 2068 the only NTSC clone built of the ZX Spectrum? And I use clone lightly... From what I underst…
... not the size of the screen buffer that defines the extent of ... memory area which contains the screen buffer. So all of this 16k ... are used for the display buffer.
[b][i]Mark ... -
Vega ARM SOC?I read that the core of the new Vega was an ARM SOC. I thought it would have been an FPGA. But it seems it's an ARM running an emulator. Anyone kn…
... while reading the graphics buffer makes me think that ... made to the (emulated) screen buffer and reflect that change ... onto the real screen buffer, so these multicolour effects ... involve writting to any emulated screen buffer address, even when changing ... -
Vega ARM SOC?I read that the core of the new Vega was an ARM SOC. I thought it would have been an FPGA. But it seems it's an ARM running an emulator. Anyone kn…
... these events (writes to the screen buffer and writes to port $FE ... -
ZX Uno programming competition[b]Rules[/b] - The game tematic is free. The languaje can be english or spanish. - You must use Radastan video mode in the game as principal. - …
... right, top to bottom. Total screen buffer is 6144 bytes beginning from ... 16384. If 128K shadow screen is used, you have the ... -
Knight Lore disassemblyHi, Not quite sure if this belongs here or in "Games" but figured it's more likely that developers would be interested. I've just released the …
... code at $D8F3 is the screen buffer (to $F0F3). Then $F100-$FFFF ... -
Knight Lore disassemblyHi, Not quite sure if this belongs here or in "Games" but figured it's more likely that developers would be interested. I've just released the …
... code at $D8F3 is the screen buffer (to $F0F3). Then $F100-$FFFF ... -
z88dk v1.99A Release Candidate[b]Z88DK VERSION 1.99A RELEASE CANDIDATE[/b] Download from: http://nightly.z88dk.org/Releases/ The release candidate will be available for te…
... /> ld h,(hl)
push bc
ld l, e
pop bc
add hl,bc
[/code]
ld bc,_keywords
add hl,bc
ld ... the before case that "bc" is pushed and popped ... -
128K programmingDoes anyone know any good resources on assembly programming for the 128? All I'm after is an "idiot's-getting-started-guide" on how to utilise the…
... the ULA to read the screen from bank 7 (it doesn ... memory:
1. Back screen buffer, you can write directly to ... the screen bank which isn't set ... -
Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... ]
start:
ld bc,$0507
push bc
call addfunc
You see: no PUSH or POP in addfunc. No ... -
Let's copy buffers!Figured I'd do some double buffered graphics, so I can render for several frames before displaying stuff. Yes, I mean on a 48k speccy, so no 128k spe…
... + 12)
push hl
push de
push bc
push af
exa ...
exx
push af ... -
Basic BASIC help needed RNDHi all, I have recently re-discovered an old program I wrote in the early 90s which would do generate random lottery numbers. I know little now, an…
... ;end_calc
ld bc,1
ld (23670),bc ;(SEED)=1
dec c
Rloop: push bc
ld b,$1D ;B ... -
SpecNextThis looks interesting... http://www.specnext.com/
... some kind of screen buffer for HDMI (PI memory buffer), for this to ... -
SpecNextThis looks interesting... http://www.specnext.com/
... some kind of screen buffer for HDMI (PI memory buffer), for this to ... -
TommyGun's getting a Debuggerhttp://youtu.be/B_kZVRvYV98 I have always wanted to debug the programs I write in TommyGun using TommyGun instead of the debuggers in emulators. …
... also putting on an Off-screen buffer view.
Which is used ... to view off screen rendering buffers that are then ... writing a message to a buffer and then using a hex ... -
TommyGun's getting a Debuggerhttp://youtu.be/B_kZVRvYV98 I have always wanted to debug the programs I write in TommyGun using TommyGun instead of the debuggers in emulators. …
Added an Off Screen Buffer view
[img]http://gdurl.com/UC3D[/img] -
TommyGun's getting a Debuggerhttp://youtu.be/B_kZVRvYV98 I have always wanted to debug the programs I write in TommyGun using TommyGun instead of the debuggers in emulators. …
[quote="Kiwi;865763"]Added an Off Screen Buffer view
[img]http://gdurl.com/UC3D[/img][/quote]
Loving that... -
TommyGun's getting a Debuggerhttp://youtu.be/B_kZVRvYV98 I have always wanted to debug the programs I write in TommyGun using TommyGun instead of the debuggers in emulators. …
... Kiwi;865763"]Added an Off Screen Buffer view
[img]http:// ... would be nice if this screen buffer would support some simple ... configuration like:
- output buffer width in bytes.
Allows ... to 0, asssuming a linear buffer.
This allows for ... -
TommyGun's getting a Debuggerhttp://youtu.be/B_kZVRvYV98 I have always wanted to debug the programs I write in TommyGun using TommyGun instead of the debuggers in emulators. …
... would be nice if this screen buffer would support some simple ... configuration like:
- output buffer width in bytes.
[/quote ... in bytes) to get next buffer pixel byte.
Defaults to ... to 0, asssuming a linear buffer.
[/quote]
No ... -
Optimized (in size) Z80 simulatorI am evaluating Z80 simulators to try to create a tool to analyse z80 programs. I'd like to start with a simple register coverage tool and t-state cy…
... )
push hl
push de
call _strstr_callee
push bc
push hl ... )
push hl
push de
call _strstr_callee
push bc
push hl ... -
RANDOMIZE USR, PRINT USR etcHello just wondering why is it called RANDOMIZE UsR what does randomising have to do with it ? When calling machine code routine from adress x you ty…
... tend to use "LET bc=USR n" these days.< ... ]
pop bc ;BC=$2d2b (discard)
pop bc ;BC=$3365
pop ... 106E
push hl
push de
push bc
ld ... -
Flicker-free animationTrying to create flicker-free screen update, but... Where I'm wrong? [url="https://dl.dropboxusercontent.com/s/pfywhfejfmwt2zq/test_128.sna"]Snaps…
... ZXSPECTRUM128
SCREEN EQU 0xC000
CYCLES EQU ... ; --------------
; fill screen data with desired byte
SCREEN
ld de, SCREEN+1
ld bc, CYCLES- ... ld de, SCREEN + 3 * 0x800 + 1
ld bc, 0x300 - ... -
Communal Project for ASM NewbiesHi Folks, I tend to learn best by trying stuff and then going through the pain of it not working so that I can research and fix mistakes. I suspec…
... to RETurn back to
PUSH BC ;Top of stack contains required ... -
The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... .
Even has an Off Screen Buffer viewer.
One very nice ...
