-
Sort 2 byte words (x, y) on ypos, also question about swap (DE), (HL)Well that was a lot of debugging ;) But if you want a routine which takes an array of 16 byte words x, y and then sort them on y (ignoring x), I'm…
... /> add hl, de
push af
push hl
or a ... e
push hl
add hl, de
pop de
ex de, hl
swap_word
push bc ...
ld c, 0
call heapify_words
pop bc ... -
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... pop bc
ENDM
MACRO LD_SCROLL_SRC_DEST_LINE offset
push ... /> .nextbyte
push bc
push hl
ld l ... pop bc
djnz .nextbyte
xor a
push ... bc
ld c, CR
call putc
pop ... -
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?…
... /> LD HL,0
PUSH HL
POP AF
If ... you just POP values from the stack your ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... ,A ; position in byte
........PUSH AF
........INC E
........CALL #22B1
........PUSH AF
cnt....POP AF
........DEC D ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... not very fast. The PUSH/CALL/RET/POP is way too expensive ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... ;
LD B,C ;
PUSH DE ;
LD D,$00 ... /> ld (temphl),HL
POP BC ;
PUSH BC ;
JR STEP ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
This may be useful for timing your routines:
ld hl,0
ld (counter),a
ld a,&xx
ld i,a
ld hl,&xx00
ld de,&xx01
ld bc,&0100
ld (hl),&zz
ldir
im 2
ei
-- ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... LD L,C
PUSH DE
... B,C
PUSH DE
LD ... ),HL
POP BC
PUSH BC
... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... /> OLD:
T
11 push de
20 ld (COORDS ... ld (hl),a
10 pop de
10 ret
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... /> ld de,#4000
filltab push de
ld (hl),e ...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... |
ld b,a
push bc
ld b,l ... /> ex de,hl
pop bc
ld e,b ...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
;
; Graph Library
; (c) SerzhSoft '03.10.96
; serzhsoft@mail.ru
;
;interface:
;
;procedures.
; MakePtsTab
; Pset
; Xset
; Preset
; Point
; Plot
; Bar
...Best way to codeHi, I've been using Zeus Assembler to code MC programs so far. Nothing fancy just the odd scroll left or animation stuff. Wot I'd like to know is, …
... routine
. PUSH AF
. PUSH HL ; save old ... registervalues
. do your program
. POP ...Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …
... PUSH HL ; Store HL in HL'.
EXX
POP HL ... bit.
PUSH HL ; Store location of first ... and restore original HL.
POP HL
EXX
PUSH DE
EXX ; ... 0 of byte.
PUSH AF ; Save carry flag ...Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …
... into the right positions
.....push af ;store the cy for ... ;move onto next byte
.....pop af ;restore the bit 0 ...Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …
...
8018 E5 11 PUSH HL ; Store location of first ... br /> 802A F1 10 POP AF ; Restore carry flag ... br /> 802E E1 10 POP HL ; Retrieve first byte ...Quiz - my first attempt!And so it is! My first attempt at a quiz... 1. All answers give 1 point unless otherwise stated, for a total of 33 points. 2. Give your answers excl…
... Manic Miner)
13. Push your enemies off a platform ... ) Spanish game featuring an Italian pop singer.
Sabrina
Spectrum edge connectors and 'Dataman Softy S4'Hi, I moved this from the sales thread because it seems more appropriate...anyway... I was twerping around the idea of turning a Spectrum into a we…
...
RET
MY_PROG PUSH HL
LD HL,#4000 ...
INC (HL)
POP HL
EI
RET ...Basic and AY musicis it possible to play an ay-music in background while a basic program is running?
... IM1 routines
PUSH IY
EXX
PUSH HL ; preserve important ... registers
CALL AYPLAYER ; AY player
POP ... HL
EXX
POP IY ; restore registers ...Horizontal scrollDoes anyone know how to do a 2 or 4 pixel left or right horizontal scroll of the spectrum screen. I can make a 1 one pixel scroll with: ... rl (hl…
How do I avoid BASIC becoming corrupted on returning from a M/C routine?I'm having trouble with my BASIC program becoming corrupted on returning from a m/c routine which sets all the registers (including the shadow regist…
... like
PUSH IY
EXX
PUSH HL
EXX ... />
EXX
POP HL
EXX
POP IY
EI ...Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... (mask,gfx) pairs
pop l
ld a,(hl ... )
and (ix+0)
pop l
or (hl)
push l', only a 'push hl'. You should also ... know this, anyhow :)
pop bc
ld l,c ...Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…
... /> I've tried LDI and POP-PUSH, but Im not quite sure ...
