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EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…
... /> Stack dump:
I know it only gives zero numbers, but ... -
EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…
... /> Stack dump:
I know it only gives zero numbers, but ... -
Type-ins for non-standard languagesDoes anyone know if there has ever been any type-in programs for non-standard languages e.g. Forth, Micro Prolog etc. I recently bought copies of tho…
... long listing for a Forth Stack Simulator designed to teach how ... I always hate dealing with numbers in any language :) ) Getting a ... />
It'll take single numbers but anything else gives an ... the STACK when you program in Forth. You can see numbers getting ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... /> No, Phil has the right numbers. This comes straight out of ... byte of PC to the stack and decrement SP.
* M5 ... -
Program sizeI am typing a basic program into a ZX and I need to find out exactly how much memory it is using. Is there a way to calculate this? :confused:
... free memory from the machine stack.
An unused routine in ... used that subtracts the machine stack from the start of free ... the possibility of overwriting the calculator stack or the text you typed ... -
I need ASM for random numberI need to generate a random pair of coardinates in asm so that x=random no between 0 and 31, y=random no between 0 and 23. Any ideas on how to code …
... /> CALL _ROM_BC_TO_STACK ; Put divisor in calculator stack
LD HL, (_RANDOM_SEED)
I need ASM for random numberI need to generate a random pair of coardinates in asm so that x=random no between 0 and 31, y=random no between 0 and 23. Any ideas on how to code …
You are right, Geoff!!! :)
And I've found another little bug: I must put dividend before divisor in the calculator stack.
Thanks again. Now it works! :DI would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... we can represent a negative number by working out ... want to add/subtract numbers larger than 127? Do ... z80 deals with binary numbers (not just how to ... the ROM are positive numbers between 0 and 255 ... digits - some of these numbers must be negative right?
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... we can represent a negative number by working out ... want to add/subtract numbers larger than 127? Do ... z80 deals with binary numbers (not just how to ... the ROM are positive numbers between 0 and 255 ... - some of these numbers must be negative right?[/quote]
...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... a value is positive or negative. I am I going about ... then you would convert the negative number to it's positive ... can work entirely in positive numbers that represent bytes without issue ...Troll AlertMiner, we KNOW who you are (at least one of two possibilities) Odd bad remarks like `prove it works` within the Ghost+2 thread, a comment you made w…
... ... :) I`ve still got a calculator watch from mid 80`s ... nail into to enter the numbers... Im not using it, it ... for a second with the numbers, cos of the senile workings ...New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... the address on the machine stack where the appropriate return data ...New Functions for Sinclair BasicA total of 52 new functions can be added to Sinclair BASIC; 26 numeric functions (A-Z) and 26 string functions (A$-Z$). Owing to the internal structu…
... Memory Map window, highlighting the calculator stack. From there you can watch ...Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…
I think the key word here is experimentation,
trying different combinations and numbers of loops will give you hours of fun!!
Using the stack is definitely the way to go.
I'll be interested in your results.Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…
... ,
trying different combinations and numbers of loops will give you ... />
[quote]
Using the stack is definitely the way to ...Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5 Let's ear you pick! :) And a great BOHHHHHHHHHHHHH to Dr Ian Logan & Dr Frank O'Hara for their description about the…
... BC on top of the calculator stack
LD A,note
calculator stack
CALL 03F8 ; aforementioned entry ...Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5 Let's ear you pick! :) And a great BOHHHHHHHHHHHHH to Dr Ian Logan & Dr Frank O'Hara for their description about the…
... BC on top of the calculator stack
LD A,note
calculator stack
CALL 03F8 ; aforementioned entry ...Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5 Let's ear you pick! :) And a great BOHHHHHHHHHHHHH to Dr Ian Logan & Dr Frank O'Hara for their description about the…
... BC on top of the calculator stack
RST 28 ; use the ... floating point calculator
DEFB A4 ; stk-ten ... A on top of the calculator stack
CALL 03F8 ; aforementioned entry ...Retro scenes slowing down?There was a post last month about fewer people posting here, but is the entire retro scene in recession? I'm talking about fewer updates on websites…
... big profit in doing small numbers of discs believe me !
negative , you will like what we ...Emulator File types...SNA/TAP/TZX/Z80/ZXS All I knew about the Spectrum was how to play games on it, but since being introduced to pc emulations back in '97 I've always w…
... registers are PUSHed onto the stack in a .sna file, which ... some instances can cause the stack to overflow. If that doesn ... a different sequence of random numbers generated each time so that ... the same sequence of random numbers are generated each time you ...Mess around with basicIf you have a game that was written in basic, e.g Football Manager, how do you look at the code that was used? thanks
... of pushing values to the calculator stack etc, but at the end ...Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …
... ' theorem. Unfortunately it uses the calculator stack which is a little slow ...z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... z88dk's tree. The only negative change from splib2 to sp1 ... the relevant parameters from the stack and calls the asm api ...Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
... the square root of a negative number would result in an ... find the sqrt of complex numbers, etc, again with the help ...for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes: I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m not familiar…
Actually, the NMI is negative-edge triggered. This means it ... [/B] register is saved to stack,
[*][B]IFF1[/B] state ...In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…
... information is stored in the stack. Quicksort (even the misnomered iterative ... store recursive information on the stack which in worst case is ... the bin sort for small numbers of sprites(keeping the zeroing ...CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…
... that the numbers in a DRAW statement can be negative,
although ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... ]
10 sort: ld hl,numbers
7 ld b,size ... ; BY SAVING LOW BYTE ON STACK.
5/6 LDA ($30 ... PLA ;PULL LOW BYTE FROM STACK
2 INY ; AND STORE ...Which would be fasterSay you want to use a variable value of 0 to 255 in a BASIC program, which way would be fastest? Say for arguments sake you wanted to use two variabl…
... 5-byte address off the calculator stack and then checks free memory ...
