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r-type in development for the sam coupehttp://cookingcircle.co.uk/ we need z80 coders graphics artists and audio this is the amstrad cpc 6128 version: https://www.youtube.com/watc…
... the code of the JPUT rom routine in the sam coupe ... impossible for a rom routine to use the stack pointer and push ... -
r-type in development for the sam coupehttp://cookingcircle.co.uk/ we need z80 coders graphics artists and audio this is the amstrad cpc 6128 version: https://www.youtube.com/watc…
... with push and using the stack pointer as a reverse cursor ... - i don't think the rom routine does this so it ... impossible for the rom routine to use the stack pointer - unless it ... -
r-type in development for the sam coupehttp://cookingcircle.co.uk/ we need z80 coders graphics artists and audio this is the amstrad cpc 6128 version: https://www.youtube.com/watc…
(Ab)using the stack like that tends to mean ... . I'm surprised, given that ROM code is apparently faster, that ... or PUSH sled somewhere within ROM space but maybe there just ... -
What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…
... now this is ran when ROM 1 is already active< ... SP,(#5C3D) ; ERR_SP. Purge the stack.
POP HL ; Remove error ... . The main execution loop within ROM 1.
PUSH HL ;< ... of the error handler within ROM 1.
PUSH HL ... -
Interface 1 ShadowROM pagingI read the Interface Shadow ROM Disassembly book. I wondered how that rom calls the interface's rom paging mechanism. It doesn't! I learned there is …
... ’s port. So, where the ROM would ordinarily check the status ... Printer, the Kempston Centronics E ROM gets paged in, which then ... off the stack and then returns back to the Speccy ROM. The ... -
Interface 1 ShadowROM pagingI read the Interface Shadow ROM Disassembly book. I wondered how that rom calls the interface's rom paging mechanism. It doesn't! I learned there is …
... ’s port. So, where the ROM would ordinarily check the status ... Printer, the Kempston Centronics E ROM gets paged in, which then ... off the stack and then returns back to the Speccy ROM. [/quote ... -
Utility to create long REM Line for storing M/C program - Maximum BASIC Line LengthHi, I think there was a Utlity or Toolkit to create a long REM-Line under 48k BASIC to store some MCode in it. So I don´t have to type e.g. 5…
... 'm not sure how the ROM list routine would cope with ... 48K anyway (and overwrite the stack). -
Emulator suggestion Betadisk 48k TRDOS v4 adress redirection to Betadisk TRDOS v5Hi, may I suggest the following: As there are some older programs only running on Betadisk 48k with TR-DOS v4 and it´s adresses 15360/15363 ins…
... the central TR-DOS v4 ROM-Routine #3BFD
it´s ... Return-adress
onto the stack to automatically execute DOS off ... off return adress on the stack
LD A,2 ;select ...
TR-DOS v5 ROM don´t need to turn ... -
Internet enabling a SpectrumHi, Yonks ago, I floated the idea of using one of these: http://www.mycal.net/old/wsweb/img/s7600a.pdf ..to Internet enable a Spectrum. I d…
... when pushing them onto the stack![/quote]
If I ... example: if you have the rom isr enabled, you cannot use ... -
Animation loopHi. How would you read from a lookup table and cycle through the animations when a key is pressed it's Just the loop example i'm interested in not…
... preserve them, either using the stack or EXX.
If ... 're reading sprite data from ROM) and use:
[code]
ROM routines, or if you're ... -
Help! I'm learning Machine Code...Having decided to take the plunge and learn to machine code a while ago, I have started in earnest using the much recommended 'Mastering Machine Code…
... I'm misinterpreting what the stack pointer/stack location are.
[/quote ... the BASIC interpreter in the ROM is actively PUSH-POPping ... can be said about the ROM interrupt routine. Typically, the ... disabled (DI) before using the stack in this fashion, (don' ... -
Goldeneye Tournaments and tacticsI won a beer voucher in a Goldeneye Tournament in town last night, it was a combo Mario Kart/Goldeneye tourny and I lost the Mario Kart but I don't c…
...
Library
Basement
Stack
Facility
Bunker
rom files copied from the 64DD ... -
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…
... and smaller method for accessing stack variables. This is partly ... large data structure on stack in pattern flood fill routine ... br /> 210 ;| |
211 ;|- max stack depth -|
212 ;| |
213 ... -
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…
... .99998474 (unsurprisingly, as the ROM $25F8 S_RND function didn't ... the numbers, but the ROM was interfering with M0, ... br /> ld b,$1D ;B= calculator code for 'VAL'
< ...
ld b,$09 ;B= calculator code for 'x -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... logic on one side and ROM on the other though, which ... not a good idea to stack 2 boards.
And ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... /> #pragma output REGISTER_SP = 0xd000 // place stack at $d000 at startup
Apollo 11 source code releasedhttps://github.com/chrislgarry/Apollo-11 Now you can download the source code for the command and lunar modules on-board computers.
... a [i]bit[/i] more ROM & RAM than factory, a ... you basically have a glorified calculator where speed/MHz doesn't ...ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... to run from effectively the 'ROM' space. My stuff certainly doesn ... 't need the Spectrum ROM paged back in, so it ... have to worry about the stack, as my code moves that ...ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... to upper memory and allocates stack up there. (Upper 256bytes)
stack.
Once back in slot ... code that switches to internal rom and jumps to the game ... don't need the internal rom to be present.ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... This interface can run compatible ROM images (or own) up ... external rom and use part of sram chip for stack.
- CPLD may replace zx rom with any custom rom in external rom ...
- possibility reflash external rom chip direct from ZX. (need ...ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... rom and use part of sram chip for stack.< ... br /> - CPLD may replace zx rom with any custom rom in external rom ... /> - possibility reflash external rom chip direct from ZX. ( ... configuring options like selecting boot rom, switch behavior...
...ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... , so I keep the working stack and copying/launch code there ... and I'll modify the rom for you. I'll send ...Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…
... 053F ; SA/LD-RET in ROM (ROM)
0xEAE9 PUSH HL ; ... about 3000t (ROM)
0xEB11 CP B ; (ROM)
0xEB12 ... ; Keep original IX on stack
0xEB5B LD A ...Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…
... ROM)
0x5B42 LD BC,5B3A ; Pre-load the machine stack ...
0x5B45 PUSH BC ; with the return address (ROM ... address on to the machine stack. (ROM)
0x5B55 RST 18 ... 0x5B83 PUSH BC ; Preload stack with return address
...Optimizing numbers1. Is there automatic way to process basic program (huge), and replace all numbers with an VAR "number" ? 2. Same as above, but replacing numbers wi…
... pipes the file through the ROM's editor which will generate ... 40 bytes for the machine stack). I've used it with ... . As it's using the ROM's editor to process the ...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…
... example, but not for the stack write and that may not ... bits are used to control ROM states (or are a pointer ...Accessing +3 DOS with DivIDE enabledI'm thinking about making a tool that copies files from a FAT partition to a IDEDOS partition. Currently, I've got two problems: - Getting the ESX…
... paging conditions and make appropriate ROM calls to load data from ... disabled (as long as the stack is properly placed). It crashes ...Calculate if two segments cross in assemblerHello, Im developing a little game and I need something that I cant archieve. I have two lines (segment of a line). Line one: X11=coord X of …
... that by "calculator" you mean module in Spectrum ROM dealing with well ... this solution too but using ROM routines here is almost certainly ...
