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NMI Routine and Restarts in a new 128K ROMI'm presently engaged in creating AGD 5 with the intention of making it a pair of 16K ROMs for the 128K/+2. I'm fairly sure that the vast majority o…
... 't supported in the original ROM 0 as the delay routine ... -
New loading screen for VIXENIt had been a while since I had worked on a screen, so I got with this game whose cover art was its best part. Vixen [img]https://www.dropbox.c…
It had been a while since I had worked on a screen, so I got with this game whose cover art was its best part.
Vixen
[img]https://www.dropbox.com/s/jbmxvnrnn5mp7vr/vixenx6.png?raw=1[/img] -
Hardware Reference Manual for ZX SpectrumHi, I want to write games for ZX Spectrum in assembly language. I have lot of books in PDF format from SpectrumComputing. Still missing a book lik…
... /> Graphic mode selection for current Screen
How we define playfield ... support
Devices (TAPE)
ROM system calls library
System ... -
How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... is reserved by the Speccy ROM so u can't 'store ... is reserved for the Speccy screen. Anything u 'write' there will ... be displayed on the screen.U can do wot u ... AL (u could use a ROM routine to print but that ... -
How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... is reserved by the Speccy ROM so u can't 'store ... is reserved for the Speccy screen. Anything u 'write' there will ... be displayed on the screen.U can do wot u ... AL (u could use a ROM routine to print but that ... -
+2aI have a +2a and it wont boot properly get the white border with black square when first powerd on but then just goes into a black screen instead of …
... produce garbage
2) Fried ROM, in which case you'll ... EPROM loaded with the +3 ROM
3) Screwed up ULA ... to the screen correctly
Myself I think the ROM is ... zeros and explain why the screen is black and why nothing ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... wasn't slower than the ROM.
The best way ... will be to copy the ROM routine and alter the ... />
I copied the ROM-routine and tried to run ... error yet.
Faster screen calculation can be obtained by ... ; in fact x-pos on screen
ADD A,C
machine code basicsWondered if anyone can help me out. I have been playing round with some disassemblers (Zeus). And Machine code loaders. All I want to do is print my…
... . As this is the lower screen the OK prompt quickly
ROM
that prints 'canned' strings ...Certain Games Wanted - Very Good Prices PaidHi I have been after a few games now for ages and have turned to this forum as the last resort, can you help? I will pay ?5.00 for each of the follo…
... have now obtained the following rom carts:
Chess - Psion ... the following two:
Cookie - Ultimate
Jetpac - UltimateDidaktik M (ZX Spectrum clone selling)Here is an offer to buy ZX Spectrum clone ( DIDAKTIK M ) from Slovakia, basic info: 100% functionality, Kempston & Sinclair joysticks connectors, tap…
... that compute any kind of ROM checksum doesn't work, but ... has different timing, so the screen size is different,all memory ...ZX81 Emulator (HARDWARE FREAKS NEEDED!!!!)For the ZX Spectrum I have programmed a ZX81-emulator. ZX81 games can't run directly on a ZX Spectrum due to memory adresses used by the Spectrum (li…
... used by the Spectrum (like ROM).
If ... could load the ZX81 ROM in it and use ... that remains is the screen-mapping. Adress 16384 is ... load a program. The screen is at variable locations. ... but during an intrupt the screen (positioned at 49152) will ...Hardware specialists ?????Are there any Sinclair hardware specialist around here? I think most of you are more gamers and I need a hardware specialist for some questions!!!!
[quote]1) Replace ROM with ZX81 ROM and make screenadresses point to ... +2A/+3, load the new ROM content in page 4, switch ... make page 7 the active screen.
The overall speed will ...SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... />
Plenty of choice with screen rendering options, excellent options to ... SNA/Z80, TAP/TZX, DSK/ROM files etc ...
I ... ) ...
[1] When emulator screen is set to 'scanlines' this ...SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... br /> Plenty of choice with screen rendering options, excellent options to ... SNA/Z80, TAP/TZX, DSK/ROM files etc ...
... ...
[1] When emulator screen is set to 'scanlines' this ... 100%, you get a black screen - this disappears when you ...ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…
... wrote earlier:
; Screen scrolling routines
; for quick ... br /> ; screen allowed for an optimisation in the ROM routines for ... address representing
; screen data from left to right ... ROM
jr nz,nextln ; we've still got more screen ...Now here's an idea...I don't know if anyone's thought of this before, if they have then I ain't heard of it. How about putting all the electronics required for a kickass …
... /> into ZX Spectrum ROM and Alter the Screen routine and I would ...Machine CodeOk i had a spectrum when i was younger and only used it for playin games and typing simple BASIC programs - i mean really simple! Things like 10 Pri…
... gave the BASIC-lines on screen with an equivalent of this ... ,23756
LOOP CALL STACKBC ; ROM Routine to stack BC
CALL PRINTSTACK ; ROM Routine to print last value ...Tapes won on EbayHi folks! I just registered in the forum but at least Andy should remember my name... Last week I won those 3 tapes: - Revenge of the Killer Tomato…
... , they have both normal rom loader and no screen$... they are now ...My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... select
D3 - Screen select
D4 - ROM select
D5 - Disable ... across if not required).
Screen is split from 0 to ... /> RGB is then sent to screen.
2 colour mode ... /> RGB is then sent to screen.
SVideo modes
Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…
... a bug in the original ROM caused the printer buffer to ... buffer in the 'Sea Change' ROM and you can have as ... the system variables following the screen memory at 23296.
ROM to suggest this was once ...Micro Mart - Spectrum article due this thursdayPosted this on css and got absolutely zero response - perhaps I'll do better here. Right then chaps - listen up. You'll all recall that Spectrum v …
... RAM on a 48k, lesser screen resolution, inferior sound (on face ... model which has more RAM, ROM, I/O ports, slightly faster ...which is the best pc remake of a spectrum game?which is the best remake of a spectrum game for the pc?
... , as is John Dow's Cookie. Klass of '99 is really ... left hand side of the screen, with news and links down ... right hand side of the screen. It was by far the ...TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... The hardware improvements included extra screen modes in addition to the ... advanced screen modes must be software supplied as the ROM had ... physical addresses other than the screen. However, programs like ... pure BASIC code and SCREEN$ data should work without ...TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... solder in a Spectrum 128 ROM into a TS2068 without some ... only exception was the ROM pages and the screen pages.
ROM would never work in a ...TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... solder in a Spectrum 128 ROM into a TS2068 without some ... only exception was the ROM pages and the screen pages.
ROM would never work in a ...Spectrum +3 fault - flashing screen on power onHi ive just bought a +3 When I power it on the power led and disk drive led come on. The screen just flashes black and white around the border, almos…
... with the core circuitry itself - ROM, CPU or memory.
screen dump says to me that ...TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... Spectrum's program and data), SCREEN$ files will work, and absolutely ... on-line, and possibly its ROM as well.
If ...Loading at 1500 Baud.Just curious, I read that some of you want to load their games at 1500 Baud. Why do you want to do that now these days? Why wait 4,5 minute if you ca…
... the Spectrum. By altering the ROM load/save routine I can ... access harddisk, diskette or CD-ROM station.
So you ... />
With normal LOAD "" (CODE, SCREEN$, DATA) you load your code ...Programing ROM CART from PCHave anybody tried to make a piece of hardware that would be able to program (burn) SINCLAIR cartridge from PC? In the sense, you take TAP or TZX and…
I want to try to program EPROM's (16K due to screen) with my own code which I can put in a socket and start the Spectrum, which will then directly start the ROM. I can use the upper memory for SP etc...
