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automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …
... ;HL=actual runtime location of ADJUST
ld ... LOCATE ;DE=assembled location of ADJUST
and ... LOCATE
ret z ;return if no displacement
... de,hl ;HL=address of location to change
... -
saving part of a BASIC programHere's a short routine to save part of a BASIC program. The idea is that it can be merged into a program and then used to save sub-routines, etc. to …
... short routine to save part of a BASIC program. The idea ... programs. It's sort of a slow version of copy & paste ... -
Invalid combination of operands and opcodesIt says the error in the title, why is this?? [CODE] ORG 0000 LD HL, 63000 ;LOAD HL WITH STACK LOCATION LD SP, HL ;SET STACK POINTER TO HL LD A, …
... MENU_KEYSCAN ;MENU LOOP
;END OF MENU LOOP
;===============================================================================================
... AF ;RESTORE A
RET ;RETURN
;*********************************
2 FREE SPECTRUMS & SUITCASE OF GAMESDear WOS community, Im asking for help to find a home for my old ZX gear before it hits the landfill... Im only in England for another two weeks, …
... LOT:
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The point of me including everything is to ... off). Im therefore taking advantage of being here in little old ... ... So if the price of a cup of tea is within your ... visit, and I will either return a PM giving you my ...Playing lots of PS2Gone on a bit of a PS2 jag at the minute. I actually play my PS2 more than my Xbox 360 right now. Here's a list of the games I've collected (my orig…
... : Parallel Lines
Legends of Wrestling
Metal Gear Solid ... 2: Sons of Liberty
True Crue: ... The Precursor Legacy
Return to Castle Wolfenstein
Timesplitters ... /> The Thing
Medal of Honour: Frontline
Red ...A "bit" of a curiosityHaving to use a bit of m/code to do the AND in that key check function, I was prompted to revisit the "AND,XOR,OR,...for BASIC" topic and came up wit…
Having to use a bit of m/code to do the ... use m/code. An advantage of this version over that posted ... (XOR)
d = bits = number of bits to check
g ...
v = 0 = result on RETURN
llll DEF FN ...Scan of two type-in books from Interface PublicationsFor those who may be interested, I thought I'd just point out two book scans on a mainly Commoodre based site that have Spectrum listings in them. T…
... />
Drake's Return
The Siege of Doune Castle
Third ... National Hero Game
Corridors of Power
[B]Replicating ... [/B]
with conversion of all of the listings to the Spectrum ...English translations of Russian gamesHere is the list of all Russian games which were translated to English: Abe's Mission: Escape (translated by Total Computer Gang) [url]http://zx-sp…
Here is the list of all Russian games which were ... [/url]
Dizzy Y - Return to Russia (translated by Dmytro ...A Miscellany of Dangerous TipsHere's a selection of ideas for using some of the more obscure system variables which I've found handy on occasion. They can be very convenient if us…
... resetting the hi-byte of DEFADD on return so that the area ... address of item on machine stack to be used as error return ... rune $3E (62) records the return line & statement for each ... (ie. the statement preceding the return statement). (See, told you so ...RETURN magazine - Issue 13I've just received my complementary copy of the German Retro magazine "RETURN" through the door. I provided photos of the Spectrum 30 event last yea…
... my complementary copy of the German Retro magazine "RETURN" through the ... door. I provided photos of the Spectrum ... they appear as part of a four page article ... /> [*] RETURN to play: Spectrum Games
[*] Review of a remake of a ...Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... methods for passing args and return values between functions in the ... is something like sdcc for return args (although I might ... of times i've written a return value of "int" to only to return ... this to function args and return value passing rather than covering ...128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…
... /> ld ix,23552 ; start address of system variables
ld de ... does work; it's the return from machine code that doesn ... a 128 BASIC-compatible way of doing this?
-StephenAddress bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... address bus during execution of HALT, beyond the initial ... performed are from the return address of the interrupt handler. Firstly ... opcode fetches were of the address of the HALT instruction ... paging operations of peripherals due to trapping of addresses well ...Game of Life.Last year (I think) or maybe the year before, I entered a Game of Life simulator into the CSS CGC compo but for the Sinclair ZX81. I decided to port…
... , I entered a Game of Life simulator into the CSS ... machine which has a variant of Microsoft BASIC, so I thought ... e: NEXT j: NEXT i: RETURN
3 FOR i=o ... it updates.
Because of the speed, I made some ... as much in one line of BASIC as possible, and ...New Game - Page and the Curse of the Pharaoh[B]My second outing with AGD and continuing on from my last game, may I present... 'Page and the Curse of the Pharaoh'[/B] After battling his way th…
... present... 'Page and the Curse of the Pharaoh'[/B]
< ... Pharaoh had awoken after centuries of sleep. The Pharaoh's ... so he commanded Page to return to him all his ... treasure on penalty of death and placed a ... not only free him of his curse but also ...New set of rubber keys?Hi everyone, I've recently acquired a rubberkey speccy in a sorry state and I'd like to return it to it's former glory. A lot of the lettering an…
... and I'd like to return it to it's former ... glory. A lot of the lettering and commands on ...The influence of school.I was having a think about school this morning and realised what an influence it was on me with regards to computers. I was never a big fan of school…
... did without the playground swapping of C90s, especially for the ... Each one had different flavour of basics and operating systems, ... sports teacher was massively supportive of anyone interested and taught me ... gave me a lot in return.
anyone else ...Empire - port of trs80 basic programBack when I was a little kid, I had the opportunity to play around with a trs80 model 1 with level 2 basic. One of the games I often played was call…
... it has the potential of raising lots of money,
overly high ... /> for themselves.
Types of investments:
Marketplaces are ... , there is often a better return during these years.
The secret of success is failure32 years ago when I first started learning to program thanks to the Speccy, I didn't worry about not getting the anticipated results. I wasn't confi…
... the command like GOSUB without RETURN.
Well ... 'd forgotten that revelation of not being afraid to ... a pretty reasonable rendition of the musical piece I ... at this laborious means of entry was what drove ... up my own series of Basic lessons and small ...Random Numbers, USR Return Values & Timing BASICI've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency ana…
... In both instances the required return to BASIC with a decimal ... :POP HL ;discard $2d2b ;STACK_BC return address
RET
... to the requirements of this particular function) will return that value ... secs":
BORDER 7: RETURN
9999 LET t1=FN ...Recreated Spectrum .What do we get for the "now" (Aug 2017) best retail price of around £35?Well best/ cheapest retail prices can vary a bit so I thought it best to be specific. At this £35 price ,is it a good deal and what do we get ? A…
... as they are difficult to return.But in this case ... altogether including Elite :There are of course 3 names :- Elite , ... control over ALL ASPECTS of the manufacturing process and ... than originally intended? . Speaking of other tech products/companies and ...Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php I found the following code: [code] CHADD equ 23645 ; Location of SOS variable CHADD ld…
... /> CHADD equ 23645 ; Location of SOS variable CHADD
ld ... ld (TEMP),HL ; Temporary store of true CHADD
ld HL ... ,SAVE ; Address of SAVE routine
ld (CHADD ... ; Reload original CHADD
ret ; Return from where you came
A Family Man's Lament of Wifes, Family, Mother In Laws and New Cars.So after working tirelessly in the USA since my wife asked me to emigrate in 2013 our family has grown and the car I brought when we came (a Subaru F…
... it and its one of those possessions that after ... a well earned reward in return for what he has ... a mobile trash can full of cheerios, banana skins apple ... forest and the amount of food source she leaves ... the inside will be full of rotting fruit, sticky candy ...Last Problem in Chapter 3 of Toni Baker's Mastering Machine Code on your ZX Spectrum.Chapter 3 of this great book is all about how to use the registers and covers the operations LD, ADD, ADC, SUB, SBC, INC, DEC, SCF and CCF. The la…
Chapter 3 of this great book is all ... is zero
RET C9 Return to basic
[/code]New (latest) Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike DaillyNew latest Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike Dailly V2.15.2 As seen on Facebook yesterday: [quote]Mike D…
New latest Version of #CSpect: SpecNext Emulator for Windows, ... RST$08 read/write to return values in BC,HL and ...How to return to basic properly from ASMI am messing around with a fast stack copying routine. But I am getting "A: Invalid argument" error when I later return to basic. I know you h…
... argument" error when I later return to basic.
I ... to basic. I think one of the shadow registers is used ...top 5 of games ofwhat are people's top 5 of adventure, platforms, beat'em'up, rts, sports etc and why? [img]/__forums/images/smiles/icon_smile.gif[/img] octave
what are people's top 5 of adventure, platforms, beat'em'up, rts, sports etc and why? [img]/__forums/images/smiles/icon_smile.gif[/img]
octaveneed help with title of spectrum gameok people, i need your help. a long, long time ago, i had a spectrum, with many addicitive games. but recentely a game comes to mind, but i can't rem…
... is that is was one of my favorites. It's about ... , you got a cool cutscene of the bad guys horribly mutilating ...Shadow of the UnicornI've written a program to run Shadow of the Unicorn on a +2A/+3. Is there anywhere it can be put to be available to anyone wanting to play the game?…
... a program to run Shadow of the Unicorn on a +2A ...A picture of me and my Spectrum circa 1984 8o)<a href="http://www.fotango.com/p/eba00132841f00000010.jpg From" target="_blank">[url]http://www.fotango.com/p/eba00132841f00000010.jpg[/url] From<…
... left to right;
Stack of sinclair users in drawer
Scrabble behind that balancing ontop of a rubber key 48k spectrum ...
a rack of games- visible are;
booty ...
