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array offset (z88dk)Im trying to simulate a 2 dimensional array by using an offset [code] #include <fzx.h> char scr[768]; int arrayoffset(char x,char y) { return (x*…
... />
// zcc +zx -vn array.c -o array -lndos -lfzx -create ... -
array offset (z88dk)Im trying to simulate a 2 dimensional array by using an offset [code] #include <fzx.h> char scr[768]; int arrayoffset(char x,char y) { return (x*…
... chars in sccz80 (z88dk's C compiler, probably the reverse for sdcc ... appropriately can also allow the compiler to generate better code in ... an int will cause the compiler to insert sign extension code ... -
array offset (z88dk)Im trying to simulate a 2 dimensional array by using an offset [code] #include <fzx.h> char scr[768]; int arrayoffset(char x,char y) { return (x*…
The macro will work but it's like inlining code -- it will lead to a larger code footprint, which is what slenkar was trying to reduce.
If code footprint is important you can modify the macro to call a function to compute the index instead -- ... -
Andromeda and MCoderI came across "Andromeda" by PSS written "in BASIC for MCODER" by A. Tobias 1983. Unfortunately the ANDROMED.TAP file always failed with R Tape Loadi…
... the code above allows the compiler to work again.
C) 1982 and MCODER2 showing (C) 1983).
Can any C experts help me - have hit an impasseHere is an excerpt from my attempt to program a Bridge game in C. Can you spot where I'm goiing wrong? I am trying to count the points in each ha…
... /> }
[/code]
In C++ structs are public classes so ... function via a pointer. In C, a struct can be passed ... the array offset manually -- the compiler needs that info for the ... always passed as pointers in C, unlike structs.
Prefer ...About how z88dk generates code and makes room for variables.When you attempt to code games for the 128K models using z88dk in C you need to somewhat control where variables are stored in memory. I thought tha…
... /> [code]
// "main.c"
extern int ... four bytes) for "long c"
_d ds.w ... /> // zcc +zx -vn main.c globals.asm -lndos
[/code ... consider writing a data compiler which takes a ... either). Parsing the C declarations is the hardest ...About how z88dk generates code and makes room for variables.When you attempt to code games for the 128K models using z88dk in C you need to somewhat control where variables are stored in memory. I thought tha…
... ld (_char_c),init_c ;; initialize char c
ld hl,init_i ... reloading an image. The C standard accommodates these cases by ... you cannot say whether the compiler will change sometime in the ... by the compiler) but is not there yet. The C embedded ...About how z88dk generates code and makes room for variables.When you attempt to code games for the 128K models using z88dk in C you need to somewhat control where variables are stored in memory. I thought tha…
... ) principle, although it is C so that is to be ... expected (C++ is the same too ... forth between the line dividing C and asm so we ... set of names for the C compiler and another for the ... here is something the compiler will eventually automatically do.128k gamesHi. I've come to World of Spectrum for advice. I'm a Commodore guy OK, please be nice to me, as I seek your wisdom! I love the Commodore 128, and I'…
... CA65 which gives you a C compiler and an assembler. If I ... m not sure about using C yet, but some people ... really great results by using C for game logic and assembler ... is to prototype logic in C for speed of trying ... life, and using some C might help me get the ...128k gamesHi. I've come to World of Spectrum for advice. I'm a Commodore guy OK, please be nice to me, as I seek your wisdom! I love the Commodore 128, and I'…
... CA65 which gives you a C compiler and an assembler. If I ... m not sure about using C yet, but some people ... really great results by using C for game logic and assembler ... is to prototype logic in C for speed of trying ... life, and using some C might help me get the ...128k gamesHi. I've come to World of Spectrum for advice. I'm a Commodore guy OK, please be nice to me, as I seek your wisdom! I love the Commodore 128, and I'…
... CA65 which gives you a C compiler and an assembler. If I ... m not sure about using C yet, but some people ... really great results by using C for game logic and assembler ... is to prototype logic in C for speed of trying ... life, and using some C might help me get the ...What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…
... s
; e = char c
; bc = uint n ... for sccz80 (the z88dk native C compiler):
[code ... /> [code]
"string/c/lr_z88dk/memset_callee.asm"
string/c/lr_z88dk/memset
string/c/lr_z88dk/memset_callee
DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…
Maybe you should try C first it's a lot ... though with a C to Z80 compiler on the PC. C also maps ...DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…
... ;746199]Maybe you should try C first it's a lot ... though with a C to Z80 compiler on the PC. C also maps ... , so I can basically use C to generate machine code?
DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…
... were largely written using C, but now most ... games use C++, which is C with object orientation ... Ok, I dislike modern C++, but C is great.
< ... When you compile a C program and accidentally miss ... with Pascal depending upon what compiler you used.
harvard architecture spectrum clone.I got my first +2 before christmas. I'd never given the 128k spectrums much thought, always been a 48k rubber key tradionalist. :smile: I've been me…
... and 8 bit ALU. A C compiler that supports the added instructions ...DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…
... can get something going in C is there a function in ... the assembly output in most C compilers, but it may be ... be any comments
2. C compilers usually pass parameters to ... assembler
3. A good C compiler will optimise things, but that ...****ing Awesome Spectrum Engine (FASE)This is a new engine (sprites, tiles, map) for all ZX Spectrum machines. The engine set ups a runtime enviroment that leave between 24K and 30K byt…
... .
Looking at the C code, I think you will ... of those will require the compiler to inline multiplication code. Because ... the nice array dimensions, the compiler may not have to resort ...****ing Awesome Spectrum Engine (FASE)This is a new engine (sprites, tiles, map) for all ZX Spectrum machines. The engine set ups a runtime enviroment that leave between 24K and 30K byt…
... ;746355]
Looking at the C code, I think you will ... of those will require the compiler to inline multiplication code. Because ... the nice array dimensions, the compiler may not have to resort ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
Stay away from C. I cannot stress that enough ... tackle C. If you don't understand what the compiler is ... doing (and are an amateur with C as ... bloated and slow - and C compilers don't exactly produce ... the forums and almost no C code at all.
...Andromeda and MCoderI came across "Andromeda" by PSS written "in BASIC for MCODER" by A. Tobias 1983. Unfortunately the ANDROMED.TAP file always failed with R Tape Loadi…
... 3! (not the French ERE compiler rebadged as MCODER 3).
compiler which identifies itself as "Microdrive ... .0" and the copyright is (C) 1984. It looks similar to ... newer.
Unfortunately the compiler has been modified so if ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... amount of RAM, a C compiler is the last thing a ... likely quite well-versed in C, understand pointers, indirection, ... will benefit the beginner C coder far better than ... a knowledge of C would a beginner assembly ... - far from it; C itself is a portable assembly ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... . [b] An expert C programmer[/b] knows this ... is absolutely nothing like C. Neither is x86 assembly ... code in asm using a C compiler - you have to ... doesn't include C because... well, C is just crap. ... your development process, check into C.[/QUOTE]
...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... higher-level languages such as C. Actually, if developing on a ... , then it has to be C - I know of no other ... to the strengths of your compiler and where its limitations are ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
[QUOTE=Paradigm Shifter;748039]K: Nonsense in Basic[/QUOTE]
Really? How much space will you have on your Spectrum after the C compiler has been loaded (not to mention the source code).Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... ldir, lddr everywhere. The C compiler is not able to generate ... never have to touch C in a C compiler environment. The assembler ... just information for the C compiler; from your asm program ... increase productivity greatly. A C compiler is not possible using ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... code in asm using a C compiler -
[/quote]
... never have to touch C in a C compiler environment. The assembler is ... are just information for the C compiler; from your asm program ... then you can dump the C compiler completely and go straight to ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... The assembler is not the C compiler though, is it? That' ... discussing using assembly in the C code itself; you're ... I can easily write C that calls into my ... suggesting there that a C program can only use ... libraries than can interact with C code.
...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... code (it's standard C, so whatever C compiler you have should work ...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... code (it's standard C, so whatever C compiler you have should work ...
