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Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... the Z80 sourcecode for the 'stack free' transfer link taken from ... hl,(addr)
ld de,(size)
ld ix,pc3< ... de,(addr)
ld bc,(size)
ld ix,pc4< ... de,(addr)
ld bc,(size)
ld ix,pc5< ... hl,(addr)
ld de,(size)
dec bc
... -
Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... 2
ld sp,stack
ei
defs 256
stack equ $
[/code]
size of six characters. There was ... assembly. The routines use the stack for speed, a lot of ... -
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... like a jigsaw puzzle! The stack would have to be in ... data would be reduced in size thus it could be loaded ... clever routine placed in the stack area will be used to ... fixed repeated area and the stack) cannot be compressed but all ... -
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... file to reduce the size of the depack/restore ... must be placed in the stack area, this will be ... 16 BIT pushes to the stack once the game executes. ... not be saved during abnormal stack activity as the whole ... process relies on the stack holding the return address ... -
Help needed with simple MCode routineI'm trying to code a routine to clear the screen and I can't figure out why it's not working: ld hl,16384 ld bc, 6144 loop:ld (hl),0 inc hl dec bc l…
... stacks and, depending upon the size of the BASIC and whatever ... previously, then one or other stack might overlap one or other ... -
New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…
... be placed on the stack top without entering the ... ROM area. Once the stack is verified it is ... me on this! The stack area can be anywere within ... method as final compression size is decreased depending on ... part2' will increase in size depending on the method I ... -
Carmageddon port crashes and burns?Why did no one post on here that the DOS classic Carmageddon was being remaded to run on Windows (well, a coder was writing his own version of the ga…
... />
I've tried a stack of Glide Wrappers (every one ... be human (judging by their size compared to the your car ... -
Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... printf can increase code size 2-5k depending on ... competing tension between code+data size and speed. In SP1 ... that if I moved the stack above something like 53428, ... bytes for a full size 32x24 area. It is ... bytes instead of the full size 7680 bytes.
Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... z80 does not have a stack-relative addressing mode. Making ... />
You will minimize stack space required by making locals ... this reduce stack space required, it will reduce code size and ... crash almost immediately should a stack overflow occur.
...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... the emulator debugger the stack was corrupting right down ... another 16 bytes of stack space, so I now ... the bottom extent of the stack.
The ... completed now, so this stack size should remain OK in the ... the bottom of the stack as before which has ...Best way for programming in BASIC?New to the ZX Spectrum, and fixing up ccowley's vbSpec emulator. Aside from that, I would also like to try programming a game or two in BASIC. What's…
... , PUSH/POP on the call stack)
3. Sprite handling
size]) etc) and extending the STREAM ...
4. Stacks (STACK NEW numvar, then STACK PUSH/STACK POP to add ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... /> init: ld sp,0xffff ; set stack pointer
call zerobss ; zero ...
ld bc,6144 ; vram size
ldir ; all to 0 ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... one time and typical allocation size is likely around 20-50 ... exx set or on the stack. The 32-bit multiply and ... a compromise between speed and size.
There is an ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... sense to have "one size fits all" malloc and ... table process should also have stack attached. This means that ... the header telling about its stack expectations. The loader would ... br />
REALLOCATE EXECUTABLE
stack = MALLOC(STACK_SIZE)
LD SP ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... the header telling about its stack expectations.
[/quote]< ... size required which will include data space, code and the stack ... collecting parameters from the stack. malloc jumps directly into ... br /> ; pc already on stack since task switcher was called ...Recursive 4-way floodfillHi guys) Shortly, I wanna find out whether there's a way to some object. Perhaps some of you have already encountered such an issue which is relativ…
... I'm not sure about stack size limit for I even can ...Recursive 4-way floodfillHi guys) Shortly, I wanna find out whether there's a way to some object. Perhaps some of you have already encountered such an issue which is relativ…
... I'm not sure about stack size limit for I even can ...Good (non-Spectrum) games to explore inSomeone on gamefaqs asked "[I]Reccommend me some great games that involve exploring a large land. Games that strongly feature discovering new areas a…
... don't tell you what size their world is, only the ... unopened lying on my todo stack. :sad: Any suggestions?
Fast LogsAnyone know of a fast ln function I can steal? The ROM function seems to be hideously slow. I wrote a look-up table dirty and less accurate sin func…
... for numbers. This reduced the size of the ZX81 ROM by ... to the required number and stack it.
For example ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... start, to ensure that its size just matches whatever was copied ... which will call Slicing from Stack Variable.
However, ... in the DEFADD area then Stack Variable is not called, ... flagged as "not required" by Stack Function Argument, so Slicing is ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... start, to ensure that its size just matches whatever was copied ... which will call Slicing from Stack Variable.
However, ... in the DEFADD area then Stack Variable is not called, ... flagged as "not required" by Stack Function Argument, so Slicing is ...Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
It's the stack pointer which is causing the ... machine stacks. Due to the size of the machine code block ... two stacks, and eventually the stack pointer gets pushed down into ...Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
... has been met) or SpecEmu (stack trace doesn't go far ... in its debugger. The file size is only limited to the ... size of your hard drive. Not ...Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
... for the stack trace. During my tests, the initial program size seemed ... return address left in the stack! So I just removed this ...Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... ld bc,0x0ff7 ; b=buffer size, c=RS232_DTA port
ld ... /> ld (stackp),sp ; store stack
ld sp,retm_table ; ... br /> ld sp,(stackp) ; restore stack
ret
ld sp,(stackp) ; restore stack
ei
ret ...Calculating free memory...Hi Folks, I am using the following method to calculate the amount of free memory available to BASIC: [CODE]PRINT 65536-USR 7962[/CODE] Is this the…
... ;540961]There is GOSUB stack and Machine stack but I can't ... only item on the machine stack is the error return address ... , the stack address for that item being ... (RAMTOP)-(ERR_SP). The size of the GOSUB stack is that value minus ...A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…
... 64 instructions and a simple stack. Which is still not easy ... format to support 64Kb/4Gb size (which may break compatibility with ...Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
[QUOTE=Jumping Stack;550661]Just joining this thread ... . A wee gem.
[SIZE=1][I][plug]I've ... /"]Clicky here[/URL]. [/plug][/I][/SIZE]BUZZSAW+ Demo No. 3Right, another demo of BUZZSAW+. [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_3.tap"]Joefish_Buzzsaw_Demo_3.tap[/URL] The default con…
... /> I've always had the stack at the top of memory ... to a tenth of their size for the cost of a ...File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy
... !" doesn't give the file size. On the +2A/+3 "CAT ... "m:"" does give the file size but getting at it is ... work because of the SCREEN$ stack bug, so each character has ...
