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Games that cannot be completed due to bugs - the definitive listIt would be nice if the community of WoS compiled a list of all the games that are known to be impossible to complete due to bugs. Perhaps one day, a…
... be $21
(LD hl,xxxx) and then the attributes are ... 2 30,33,30,35
33 Tales From ... 34 Goblin Grotto 35,34,33,39
35 The ... Where The Hell...? 21,22,33,33
[/code]
Room 33 Tales From Fat Tulips 32 ... -
i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…
...
17 > LD DE,NN
33 > LD HL,NN
LD A,(HL)? Would you be looking ... -
Programming MC challengeIn the 80-ies I got the following assignment for a programming course. 2 16-bit values stored in #8000 and #8002 must be added together and stored i…
... but 20 bytes. The opcode LD HL,(xxxx) takes 4 bytes, so the ... /> ld hl,address 3
ld a,(hl) 1
inc hl 1
ld ... b,(hl) 1
inc hl 1
add a,(hl) 1
ld (hl ... -
Programming MC challengeIn the 80-ies I got the following assignment for a programming course. 2 16-bit values stored in #8000 and #8002 must be added together and stored i…
... but 20 bytes. The opcode LD HL,(xxxx) takes 4 bytes, so the ... the 4 byte version of LD HL,(xxxx). People mostly use the smaller ... -
Programming MC challengeIn the 80-ies I got the following assignment for a programming course. 2 16-bit values stored in #8000 and #8002 must be added together and stored i…
... the 4 byte version of LD HL,(xxxx). People mostly use the smaller ... because I only checked against LD BC,(xxxx), for which there's ... -
Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…
... this:
LD BC xxxx
LD DE xxxx
LD HL xxxx
LDIR
HL holds the "from" address
HL TO DE. The same routine ... -
Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…
... this:
LD BC xxxx
LD DE xxxx
LD HL xxxx
LDIR
HL holds the "from" address
HL TO DE. The same routine ... -
Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…
... RET instructions? What about the LD HL,xxxx that comes before the CALL ... be specific limits, such as HL would need to be greater ... -
A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…
... ROM, it will execute LD HL,(xxxx), where xxxx is data taken from the ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... ld l,a
; add hl,hl
; add hl,hl
; add hl,hl
; add hl ... ;
; ld bc,99*256+10
; ld hl,xxxx
; call ... and d
or (hl)
ld (hl),a
;take the ... and d
or (hl)
ld (hl),a
;Similar ... -
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…
... ; di
source db 33,0,0 ; ld hl,0
db 17 ...
reg_hl db 33,0,0 ; ld hl,0
reg_bc db ... />
z80_stack db 113 ; ld (hl),c
db 35 ; inc ...
mov byte [edi+01],33 ; ld hl,0
mov word [edi ... -
binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... the target operand. Eg, 'ld hl,xxxx' if xxxx is a formula it is ... -
binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... the target operand. Eg, 'ld hl,xxxx' if xxxx is a formula it is ... -
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; …
... /> ld de,(16384)
ld hl,xxxx ; opcodes for "POP HL; JP (HL)"
ld (16384),hl
call 16384 ; hl = address ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
I admit that I had lucky with the opcode of LD HL,XXXX. It's $21, the same of the AND mask that I need :p -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... lucky with the opcode of LD HL,XXXX. It's $21, the same ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... , and the instruction LD HL, xxxx in bank 1 and LD BC,yyyy in ... bank 2. The result was LD HL,yyyy ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... the instruction LD HL, xxxx in bank 1 and LD BC,yyyy ... 2. The result was LD HL,yyyy as expected.[/QUOTE]< ... test, you had the LD HL, xxxx and LD BC, yyyy instructions ... so you ended up with 'LD HL, yyyy', as a mixture ... code for handling the 'ld e,e', meaning that ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... hardware test, you had the LD HL, xxxx and LD BC, yyyy instructions start ... ... so you ended up with 'LD HL, yyyy', as a mixture of ... Z80 has code in the 'ld e,e' instruction handler for ... ] the code for handling the 'ld e,e', meaning that the ... -
automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …
... [code]
ld hl,xxxx ; opcodes for "POP HL; JP (HL)"
ld hl,E9E1 ; opcodes for ... "POP HL= E1 ; JP (HL)=E9 ... /> ld hl,$e9e1
ld (SEED),hl
call SEED
; hl contains ... -
INC not working as expected in LoopHi, i have been working on this for around 2 weeks now and Ive read myself into a hole. I am trying to increment HL. HL is referencing a display …
... SHIFT key. It keeps incrementing HL with the next address. When ... the opcode 54 (which is LD (HL),XXXX). In a few instances what ... />
[code]
inc hl
ld a,h
cp $5b ... as the value held in HL goes outside the screen area ... -
Efficient comparision of several valuesHi all Let's say we have an array of six values, like {2,1,1,1,3,2} Using BASIC or ASM, what's the most efficient way to find 3 consecutive posi…
... />
[code]
ld hl, xxxx
no_match_loop: ld a, (hl)
ld b, 2
cp (hl)
jr nz, no_match_loop
Mode 2 Tile Editor SourceA Timex Mode 2 Tile Editor incorporating a byte mirror table. The compiled version is available in the CSSCGC 2008 collection from the WoS archive. …
... /> ld (hl),b ;
inc h ;
ld (hl),b ;
inc l ;
ld (hl ... ),c ;
dec h ;
ld (hl ... ,$E3,$13,$93,$53,$D3,$33,$B3,$73,$F3
defb ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... />
ld hl,col ; increment
inc (hl) ; the column
ld a,(hl) ;
add hl,hl ; multiply
add hl,hl ; by
add hl,hl ; eight
ld de ... ,$10,$10,$32,$55,$56,$33,$00,$00,$10,$20,$73 ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... /> LD HL,4000H 33 0 64
LD BC,17FFH 1 255 23
LD (HL ... ),L 75
LD D H 44
LD E,1 30 1 ...Help hacking Split PersonalitiesI`ve been hacking away at Split Personalities for the purpose of putting new screens and graphics (items). The current screen is at 41187 and is 160…
... , 54599 ; 54564 32 33
ld (8737), hl ; 54566 34 33 34
dec ... ; 54591 3
ld hl, 33 ; 54592 33 33 0
ld e, e ; 54595 91 ... bc ; 54626 3
ld (33314), hl ; 54627 34 34 130
New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…
... :
[code]1 DATA 243,33,9,88,229,6,28 ... ,239,1,0,0,197,33,238,90,62,8,119 ... ,40,86,62,8,119,33,223,90,17,255,90 ... ,0,25,119,35,119,33,176,54,22,0,89 ... /> add hl,de
ld (hl),a
inc hl
ld (hl),a
ld de ...Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
...
ld hl,tile_base ; tile_base
ld (next_tile_line),hl
start ld b ... ,97,98
defb 33,34,35,36,37,38 ... ,97,98
defb 33,34,35,36,37,38 ... ,97,98
defb 33,34,35,36,37,38 ... 97,98
defb 33,34,35,36,37,38 ...
