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Question about Z80 and RD/WRI know almost nothing about the Z80 CPU but I am learning. I know this is WoS so I hope asking generic Z80 related questions are OK. Anyway, I wa…
... run both pins through an XOR gate or something to prevent ... -
Mr. Jido makes some noiseA little something to analyse and discuss for you. [code] ORG 60000 ; RND Generator: RND LD HL,EARTH LD A,(WIND) ADD A,L LD …
... everything
DJNZ PLANT
XOR A
LD (WIND),A ... -
Z88DK NOOB cplot INK colorHi I am a complete NOOB with Z88DK, I am trying to draw colored circles. How does ink, paper and border work with Z88DK. I started trying to wo…
... br /> ld l,a
xor e
and 248
xor e
ld h,a ... /> ld a,d
xor l
and 7
xor d
rrca
... -
Detecting TR-DOS w/o relying on system variablesOK, I know it's much easier to do this simply by checking whether the BASIC program area has moved or some specific pattern in the sysvars etc (somet…
... hl,#3D2F ;#3D2F contains:
xor a ;- "NOP: RET" in TR ... 48 ROM
xor (hl) ;First calculate the XOR checksum of the ... -
Flicker-free animationTrying to create flicker-free screen update, but... Where I'm wrong? [url="https://dl.dropboxusercontent.com/s/pfywhfejfmwt2zq/test_128.sna"]Snaps…
... :
ld a, 0x17
xor %0010
ld (swap_video+1 ... -
HELP!I'm trying to replace a bit in a byte as follows, but having some sort of brain freeze trying to get it to do what I want. A=00 if bit to replace …
... achieve this with AND and XOR, but its proving tricky.
AND E
XOR (HL)
LD (HL),A ... -
Scrolling loader counter in 85 T-States?Would it be possible to write a scrolling loader counter in 85 T-States? I have a custom screen load routine that loads attribute first, then the …
...
rlca
rlca
xor 130
ld h,a ... ; 04ts
rlca ; 04ts
xor $82 ; 07ts
ld ixh ... ; next attribute
xor a ; 04ts ; (timing)
xor a ; 04ts ;
A sped up pixel-shift routine for 1-byte–wide spritesHere’s an optimized (for speed) real-time sprite shifting routine for sprites that are one byte wide. It uses no memory variables for storage of inte…
... sprite data is aligned)
xor a ;clear A and Carry ... ) ;read screen into A
xor c ;merge it with C ...
ld a,(hl)
xor b
ld (hl),a ...SpecBAS 0.900 ReleasedAgainst my better judgement, here's 0.900. It's got lots and lots new, but mostly the new shiny is the editor. You can indent your code, you can e…
... - %= (mod) ^= (power) &=,|=,~= (AND/OR/XOR)
The editor now ignores ...High score table routineI wrote this general purpose high score table routine. It stores 5 scores and displays them alongside the player names, which are 8 characters long. …
Flood Fill IssueHi Folks, Came across the following Flood Fill routine by John Metcalf: [code]; scanline fill by John Metcalf ; call with d=x-coord, e=y-coo…
... l,a 60067 6F
xor e 60068 AB
and ... 248 60069 E6 F8
xor e 60071 AB
ld ... a,l 60073 7D
xor d 60074 AA
and ... 7 60075 E6 07
xor d 60077 AA
rrca ...A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... (23693),a ;set ATTR_P
xor a ;BORDER = 0
call ...Illogical operatorsI know it has always been this way but... 10 LET A = 10 20 LET B = 20 30 IF A = 10 OR B = 20 THEN PRINT " YES " That evals to true and prints…
... OR is in reality an XOR really ?
BBC and ... should the result = true
XOR = only if one condition is ...How to avoid flicking? IM2 help.Hi, I have started on a quest to make a demo for ZX Spectrum. However the display is flickering and I guess it is something about updating at…
... the push sp trick
xor a
ld hl,screenstart ... (hl),a
ldir
xor a
out (254),a ...ANN: Tipshop updated Friday, 03 August 2018Friday 03 August 2018 Blimey - this March update took a while to come round, eh? Feels like about 6 months! (Ahem. Ed)... Suffice it to say that Rea…
... /> Worm In Paradise, The and XOR.
And fixed/updated ...ZEsarUX-7.1 BETAHi I have uploaded a new ZEsarUX 7.1 BETA version here: https://github.com/chernandezba/zesarux/releases/tag/7.1-10082017 Changelog of this …
... bitwise operators AND (&), OR (|), XOR (^) when using registers breakpoints/watches ...ZEsarUX-7.1Hi! There’s a new stable version of ZEsarUX, version 7.1! The next 24th of September it will be 5 years old :) So this is a special anniversary…
... bitwise operators AND (&), OR (|), XOR (^) when using registers/variables breakpoints ...why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…
... ; set our screen colours.
xor a ; quick way to load ...this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... ; set our screen colours.
xor a ; quick way to load ...
