-
[SpecOS] Question about OVEROk folks, this one has me (and a few friends) stumped. How would you implement OVER in SpecOS? Bear in mind that I'm after an algorithm which I appl…
... use OVER was to provide XOR-like drawing effects, so that ... , you get
7 XOR 0 = 7
So ... -
[SpecOS] Question about OVEROk folks, this one has me (and a few friends) stumped. How would you implement OVER in SpecOS? Bear in mind that I'm after an algorithm which I appl…
... , you get
7 XOR 0 = 7
So ... the BBC where you can XOR the current pixel with the ... ,0:DRAW 255,191:REM XOR over the line with ink ... -
[SpecOS] Question about OVEROk folks, this one has me (and a few friends) stumped. How would you implement OVER in SpecOS? Bear in mind that I'm after an algorithm which I appl…
Yep, same result you get if you draw on the CPC in pen 0 with XOR mode active. In reality this tends not to be an issue since you naturally tend to find yourself using 0 for the 'background' colour and drawing on top with other pens. -
designing a computerHi everyone! I am designing a 4 bit computer and i need some advice, is this a good instruction set? [CODE] BINARY OPCODE DESCRIPTION 00000 nop…
... instruction type (LD, OR, AND, XOR, INC, DEC, JP, CP etc ... -
SAM programmingHi Can anyone provide any example hello world or graphics/sprite printing style machine code routines for the SAM? I can't seem to find anything rem…
... attribute byte
no_key: xor a
in a,(254 ... -
designing a computerHi everyone! I am designing a 4 bit computer and i need some advice, is this a good instruction set? [CODE] BINARY OPCODE DESCRIPTION 00000 nop…
... force the programmer to use XOR -1. Get rid of INC ... STA ADD SUB AND ORA XOR CMP
and still eight ... -
designing a computerHi everyone! I am designing a 4 bit computer and i need some advice, is this a good instruction set? [CODE] BINARY OPCODE DESCRIPTION 00000 nop…
... STA ADD SUB AND ORA XOR CMP BCC BCS BNE BEQ ... -
designing a computerHi everyone! I am designing a 4 bit computer and i need some advice, is this a good instruction set? [CODE] BINARY OPCODE DESCRIPTION 00000 nop…
... STA ADD SUB AND ORA XOR CMP BCC BCS BNE BEQ ... -
designing a computerHi everyone! I am designing a 4 bit computer and i need some advice, is this a good instruction set? [CODE] BINARY OPCODE DESCRIPTION 00000 nop…
...
and and
exor xor (just to keep to 3 ... mnemonics)
not recommended use XOR -1
load lda/sta ... -
Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... two generators mixed together through XOR, which allows to get different ... -
Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…
... />
mov ebp,edi
xor edx,edx
mov ... ,ah ; Insert green
xor bl,255 ; INVERSE alpha
.zero:
xor a,a
ld [flash ... ]
and a,pad_a
xor a,pad_a
ld [collision_on ... -
Zero (aka Ziggy) 0.4.5The 0.4.5 preview build is available for er... preview. There are still some bugs and glitches to iron out but I have taken various suggestions on bo…
... represent header/data and an XOR checksum of the RAM data ... -
Zero (aka Ziggy) 0.4.5The 0.4.5 preview build is available for er... preview. There are still some bugs and glitches to iron out but I have taken various suggestions on bo…
... , size 19 bytes, leader 0, XOR checksum matches: Show as header ... X+2 bytes, leader 255, XOR checksum matches: Show "DATA SIZE ... -
Zero (aka Ziggy) 0.4.5The 0.4.5 preview build is available for er... preview. There are still some bugs and glitches to iron out but I have taken various suggestions on bo…
... , size 19 bytes, leader 0, XOR checksum matches: Show as header ... I've not used the XOR checksum check.
EDIT ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... ,al
; ------------
xor ecx,ecx
mov bl ... BYTE to UART
xor bl,255
inc ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... ,al
; ------------
xor ecx,ecx
mov bl ... BYTE to UART
xor bl,255
inc ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... /> xor a,l ; XOR BYTE with CRC then XOR HL,0ABCDh
xor a ...
ld a,h
xor a,0ABh
ld h ... -
Print text in assemblyHello, a perhaps simple question: I would like to print a text string on the screen and I wonder how to do that in the most easy way? I seem to re…
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
Optimization for this codeHello, I have done and submitted a small program for the CSS Crap Game Compo which involves a machine code routine. The z80 with BASIC and MC is av…
... /> main ld hl, 18341
xor a
kontroll7 dec h ...Optimization for this codeHello, I have done and submitted a small program for the CSS Crap Game Compo which involves a machine code routine. The z80 with BASIC and MC is av…
... (which is better written as XOR A, BTW), not after it ...Optimization for this codeHello, I have done and submitted a small program for the CSS Crap Game Compo which involves a machine code routine. The z80 with BASIC and MC is av…
... (which is better written as XOR A, BTW), not after it ... A to 0, could be XOR A to save space
Optimization for this codeHello, I have done and submitted a small program for the CSS Crap Game Compo which involves a machine code routine. The z80 with BASIC and MC is av…
... to (HL).
BTW, XOR A saves both space and ...Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…
... - HL addresses first character.
XOR (HL) ; apply variable type indicator ...How to specify 1st byte to be ran in a tap fileI am writing m/c to a tap file. When I load it in an emulator I have to go through the usual PRINT USR 30000 I always thought TAPs couldnt specify …
... ) at the start and the "XOR checksum" byte at the end ... block) at the beginning and "XOR checksum" at the end.
Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... edi,[direct_temp] ; Clear array
xor eax,eax
inc ecx ... edi
; ------------
xor eax,eax ; Allocate space for ...Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... Insert green
xor bl,255 ; INVERSE alpha
xor bl,255 ; INVERSE alpha
.loop: xor ebx,ebx
; ------------< ... mov edx,[ebp+hermite_xor]
xor [ebp+hermite_flipflop],edx ; SAMPLES ...designing a computerHi everyone! I am designing a 4 bit computer and i need some advice, is this a good instruction set? [CODE] BINARY OPCODE DESCRIPTION 00000 nop…
... register you subtract or XOR it with itself. These ... for increment)
0009h XOR A,L ; Opcode 0101 ...
; ------------
000Bh XOR A,A ; Opcode 0101 0001 ... A = 0000h
000Ch XOR A,L ; Opcode 0101 ... br />
000Dh XOR A,L ; Opcode 0101 1100 ...Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…
...
; Draw all sprites using XOR method.
... /> call xor_sprite ; Now print (XOR will print/unprint)
call xor_sprite ; Now print (XOR will print/unprint)
ret ... and low
xor a,(hl) ; XOR with screen
...Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…
... - HL addresses first character.
XOR (HL) ; apply variable type indicator ...
