-
ula bookula book is here: [url]http://www.zxdesign.info/book/[/url] can i post sam coupe stuff here - she kind of is a speccy if you stuff the speccy rom i…
... move the screen horizontally by two bytes at a time (one character ... -
Machine code issue...Hi Folks, My trials with MCODE continue and I am stuck. I wrote the following program in BASIC to simply POKE an attribute byte in to a "box" on th…
... to perform an SLA on two bytes e.g.
[CODE ... -
Machine code issue...Hi Folks, My trials with MCODE continue and I am stuck. I wrote the following program in BASIC to simply POKE an attribute byte in to a "box" on th…
... to perform an SLA on two bytes e.g.
[CODE ... -
Machine code[CODE] OPCODE HEX ADD LD A,05 3E05 F000 LD B,00 0600 F002 INC B 04 LOOP F004 CP A,B B8 F005 JP NZ,LOOP C2F003 F006 LD B,00 0600 F009 LD …
... least significant byte of a two-byte (16 bit) value before ... the Z80 stores F004 as two bytes 04,F0 -
Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…
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…
... save one instruction into two locations or two chips and one location ... lot of latches to save two bytes of info.
If ... i have two chips i have a huge ...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…
... lot of latches to save two bytes of info.[/QUOTE]
two chips to store a 16 ...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…
... savers) specifically will save +2 bytes (0/255 at the front ... end).
As these two bytes don't get stored in ...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…
... . They save a block 16384 bytes long and expect to see ... 16384 bytes saved as that is the ... memory. The flag and checksum bytes are temporary (though necessary) for ... 's "display ROM saved data two bytes shorter", please provide a method ...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…
... 's "display ROM saved data two bytes shorter", please provide a method ... put up with possible incorrect bytes count on unidentifiable custom blocks ... custom loader thats 6910/11 bytes. I've omitted the flag ...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…
Just two bytes per bullet (minimal) is not ... . For example, we have 16 bytes per object, and 32 bullets ... on screen at max - 512 bytes total. It is even less ...Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... />
D.[/QUOTE]
Two bytes since the startline is part ...BMP2SCR delta formatdoes anyone know where I can find a file specification for LCD's delta compression format used in BMP2SCR? I've tried looking at the bmp2scr source …
... with the count of bytes that are unchanged from ... Then again count of unchanged bytes and again... until 6144 ... or 6912 Bytes are done:
40 ... 2,255,255: Next two bytes are copied to screen.
bytes.
Edit: ...BMP2SCR delta formatdoes anyone know where I can find a file specification for LCD's delta compression format used in BMP2SCR? I've tried looking at the bmp2scr source …
... with the count of bytes that are unchanged from ... again count of unchanged bytes and again... until 6144 ... 2,255,255: Next two bytes are copied to screen.
bytes.
Edit: ... 0x0300, then 768 0x40 bytes. so it's initialising ...BMP2SCR delta formatdoes anyone know where I can find a file specification for LCD's delta compression format used in BMP2SCR? I've tried looking at the bmp2scr source …
... that 6144 bytes are unchanged, then 768 bytes are to ... changed. Then the 768 bytes which I copy to the ... br />
The next two bytes though are 0x00 and 0x32 ... me that 0x3200 (12800) bytes are unchanged? cause this doesn ... me that the next two and a bit frames ...What Spectrum to choose?Hi i'm new to the Spectrum. I read 'bout it in CDA (Polish game magazine) and watched LGR review of the 48k and it REALLY interested me. What model m…
... a 257 page of $FF bytes in the spare section of ... that the 128K Spectrums had two bytes containing $FF, $FF where pages ... the four sets of $FFFF bytes.
An added complication was ... put one set of $FFFF bytes in as if "Use this ...Help sought extracting dataAmong yesterday's TZX Vault update are all titles from [URL="http://www.worldofspectrum.org/infoseekpub.cgi?regexp=%5EPenguin+Study+Software$&loadpic…
... # - 1 byte
* Line# - 2 bytes
* Key codes - a series ... the first array are single bytes, being a sequence number. Pointers ... the other five arrays are two bytes, being an array number 1 ...Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …
... entry that is spread across two bytes, 256 bytes apart
in the ... in JSWI is always 256 bytes for a room.
128 ... bytes for the room layout and ... 128 bytes for the room name, the ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... different ways to interpret the two bytes the ULA fetches to display ...Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... calculation' in hardware is that two bytes (screen + attr) must be read ...Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... should i say Sinclair) pursued two very questionable goals:
1 ... calculation' in hardware is that two bytes (screen + attr) must be read ... six shared bits, as the two high bits of this byte ...Flip Screen vs ScrollingWhich do you prefer? I've always liked flip screen games but I had a C64(spit) owning friend who hated them with a passion.
... a memory address one or two bytes over and start the sequence ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... ; optimized by Crisis (to 602 bytes)
org 64166 ... chan_4 ; could write the bytes directly but
; then ... default streams has
; two bytes of offset data
; ... the total number of bytes occupied,
; held ...Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
pop reads two bytes from SP into specified register pair and increases SP by two. push decreases SP by two and stores two bytes from specified register pair to SP. These operations are not copy anything.SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... the new channel takes 5 bytes
call make_room ; call ... , do_it ; could write the bytes directly but
; then ... default streams has
; two bytes of offset data
; ... the total number of bytes occupied,
; held in ...
