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+3e ROMs in AT28C256I've been thinking about loading the +3e ROMs in a E2PROM (AT28C256) to make the upgrades easier. It seems that is TTL compatible, and it takes +5v V…
... versions without using UV to erase them (I don't own ... hand, you [I]could[/I] erase the old ones by placing ... -
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 ... -
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 ... -
Flash based rom replacement board for +2A/+3I'm sure I already started a thread about this, but I can't find it... Anyway, this post's to say that I've just sent off the order for the printed …
... . My flash utility enable flash/erase only 64kB sectors 1-7 ... -
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 ... -
Seeking alternatives to DATA statementsAnyone know of any memory saving alternatives to storing a list of numbers, other than using DATA statements or poking data into addresses?... Im ti…
... or RUN, as you will erase all your variables, and you ... -
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…
Issue 65 of Scene+As I understand that some programmers wants to be informed if their programs were distributed on our disk magazine, here is a list what will be on ne…
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Really a pity. We erase HEART STEALER and put there ...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 ...Flash based rom replacement board for +2A/+3I'm sure I already started a thread about this, but I can't find it... Anyway, this post's to say that I've just sent off the order for the printed …
... ] [B]Minimum 10,000 program/erase cycles guaranteed[/B]
flash ...Looking for a file deletion shredder...I'm looking for a (WinXP) free file deletion tool, that works on an NTFS HD, so that the file(s), when deleted can not be brought back (by using NTFS…
... ) if you want to safely erase IDE hard disks completely (including ... computer and want to safely erase everything. Be warned though, this ...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 ...Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
Hi Folks,
Well I have been further refining my double height character program i.e. the ZX BASIC version. I am rather chuffed with the following version as it uses the RAM disk on the 128K Spectrum.
Program 1 generates the ...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…
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 ...
