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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…
... 's not that suited to masked sprites. You can mirror the ... -
Die RollerOkay, technically it's in machine code - but it's all compiled in a basic compiler. (you know, the one that people keep telling us is impossible to …
... support binary AND, OR and XOR (Boriel promised). The latest development ... build supports logical XOR. There is no other compiler ... -
WIP: Another demoIt's a couple of months already since I've released something, so I thought it's fun to show a demo of the thing I'm currently working on: [url]http…
... had about a lot more XOR-blitted preshifted sprites, but I ... -
WIP: Another demoIt's a couple of months already since I've released something, so I thought it's fun to show a demo of the thing I'm currently working on: [url]http…
... sprite routines. A pre-shifted XOR routine is probably your best ... -
Assembler Shortcuts Reference?Can someone please refer me to a page of assembler shortcuts; ie. concise ways of doing things in a few bytes which might not be immediately obvious?…
... , saying "[B]Never [/B]use: xor A : ld BC,$0000, Use ... : xor A : ld B,A : ld ... -
Knight Lore on c64.. after 25 years..It seems that Knight Lore coming on commode a quarter century after speccy version. ;) Well, better late than never.. The game is still in developmen…
... screen ram (which can be masked off on other machines to ... -
Optimize this assembly?Aiming for Variable*192 -> HL In the first case, I came up with the obvious method - *128 +*64: [code] ld a, (variable) ;13 ld h,0 ; 7 ld l,…
... /> ld h, a ; 4ts
xor a ; 4ts
srl h ... your previous example, so that XOR can be used to clear ... -
Optimize this assembly?Aiming for Variable*192 -> HL In the first case, I came up with the obvious method - *128 +*64: [code] ld a, (variable) ;13 ld h,0 ; 7 ld l,…
... ], [B]OR A[/B], [B]XOR A[/B], [B]SUB A ... -
Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... allow the sprites to be XOR'd on and off the ... -
Optimize this assembly?Aiming for Variable*192 -> HL In the first case, I came up with the obvious method - *128 +*64: [code] ld a, (variable) ;13 ld h,0 ; 7 ld l,…
... ]
; HL=(val)*192
;xor a ;0
;ld l ... even better, because without the XOR A, I have the option ... -
Optimize this assembly?Aiming for Variable*192 -> HL In the first case, I came up with the obvious method - *128 +*64: [code] ld a, (variable) ;13 ld h,0 ; 7 ld l,…
... ]
Exactly, I used XOR (losing a t-state) to ... -
Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... weren't visible would be masked completely. It worked very well ... -
Your views on...Head Over Heels[url=http://www.worldofspectrum.org/infoseekid.cgi?id=0002259]Head Over Heels[/url] Alright! Come on 'en. What's the biggy about this one. Never pla…
... backdrop and floor aren't masked, so you'll see the ... -
TZX block ID questionHi, I'm trying to develop a program in c to make custom tzx files. Right now I'm stuck with the following block ID, it's number 19 (Generalized Data …
... "The checksum is the bitwise XOR of all bytes including the ... -
TZX block ID questionHi, I'm trying to develop a program in c to make custom tzx files. Right now I'm stuck with the following block ID, it's number 19 (Generalized Data …
... "The checksum is the bitwise XOR of all bytes including the ... -
BITWISE operators...Hi Folks, Another question - is there a way (fast) to do bitwise operations in Sinclair BASIC? Many thanks Paddy
You might be able to implement XOR by writing UDGs using OVER 1, and then PEEKing the screen buffer. -
Using Interface II joystick in kempston-only gamesHi everyone! It's me again, bothering you with new crazy ideas :) I have recently acquired an Amstrad +2A Speccy with a joystick and built-in Interf…
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... />
Bitwise operators - BAND, BOR, XOR. Unless anyone can suggest a ...SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... are handled by BAND/BOR/XOR. Sound effects will be either ...SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... .
New is MERGE, XOR, INC, DEC and bitwise AND ... /OR (using "&", "|"). XOR is bitwise. INC and DEC ...Derren Brown fiascoPlease, please, please, don`t anyone believe that this show was for real, I have been a Magician for 40 years or so and I really take offence at this…
[QUOTE=Hairy;474821]Are you the masked magician?[/QUOTE]
I thought he was Val Valentino, aka Leonard Montano, who used to play Vegas then moved to Brazil amongst other places.Derren Brown fiascoPlease, please, please, don`t anyone believe that this show was for real, I have been a Magician for 40 years or so and I really take offence at this…
... Valentino was not the original Masked Magician. The Fox Network came ...Developing ZX Spectrum using 8 chipsHello. Sorry, my english is not perfect. I am developing new realising of ZX Spectrum. There are 8 chips in my sch. Central processor and video proce…
... correct time (accept DAA and XOR). I am ready to show ...[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…
The main reason to use OVER was to provide XOR-like drawing effects, so that you could DRAW a pattern and then DRAW it again to remove it seemlessly. Given that, XORing the two INKs would seem the obvious way to go.
