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Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
...
LD (DE),A LD (DE),A ; Store in screen
INC HL ... bytes
; 524T per char 493T per char
[/code]
See ... ;)
[code]
; Print out a character
; ---------------------
; Using my ... -
BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... ]I just need char ( 8x8 ) based movement in my game. Can ... better performance than L for a char-based game, let me ... know and I will prepare a custom "hybrid" variant (similar ... L variant but that can print at odd columns). This ... need, this should be a good option. -
40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... the core code for myself in .asm, but I am curious about ... /> ld (ycoord),a
jr dontprint ; skip calling the print routine
ld (atflag),a
jr dontprint ; skip calling the print routine
WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …
... PAPER 7: BORDER 7: CLS : PRINT "NOT NUMBERWANG!": RETURN
200 ... PAUSE 20: CLS : PRINT "THATS NUMBERWANG! YOU SURVIVED!"
9020 IF A$="N" THEN CLS : PRINT "BYE FOR NOW!": ... i could just put them in a char array.
example, I ...WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …
... to work with a array of strings or a numeric array if ... i could just put them in a char array.[/QUOTE]
Here ... 's a simple test program with some ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... and type something like mc30mintut.asm into the save box.
To print a black road we need 0 in the accumulator (ch16 ... ;save road posn
xor a ;print new road
ld (hl ... ;save road posn
xor a ;print new road
ld (hl ...WoSBridge for Spectranet - early previewAs it's been mentioned in the Spectranet thread, I thought I'd post a quick heads up about the WoSBridge for Spectranet. [B]What is it?[/B] Well, i…
... results can be written in BASIC (if someone wants ... challenge of writing a simple JSON parser in BASIC, of ... br /> 20 INPUT #4,a$
30 PRINT a$
40 %close ... # to read it, or PRINT # to write it. Don ... see a real world use of that interface from asm - ...UDG in AssemblyHello there my fellow WoS'ers I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's so is there a tutor…
... bit of code to print a single character from your ... just four characters defined in a Sci-Fi like font.< ... address of your graphic character in HL. It then pushes ... br />
ld a,1 ;char to draw
ld b ... position
ld e,a ;put back in de
...UDG in AssemblyHello there my fellow WoS'ers I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's so is there a tutor…
... hl arithmetic to find the char in joefish's posts. And the ... we could print a string, which I may end up using in a game ... too, various people contributed in the thread but this link ... butter routines might be nice (print char, screen address table, instruction ...Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…
... data?... Is it a series of ASM bytes for the map ... /> I coded each room in a different asm file. I used the ... />
._tiles
; ASM source file created by SevenuP ... )
;Sort Priorities: Char line, X char, Y char
;Data Outputted: ...File comparitorI thought Taper might do it but its not quite what I was after. Unless I misunderstood that shows if tapes are identical or not but not the differenc…
... external GOSUBs refer to routines in my [url=http://www.users ... for the DOS routines is in the other one.
[ ... -printable are printed as a compressed hex byte. In the example picture ... diff = no print
19 PRINT : LET set=+kFG: REM print a block from ...The Great Escape disassemblyHi, Over the past few months I've been steadily chipping away at reverse engineering Denton Designs' classic 48K title, The Great Escape. I'm now a…
... need a look-up table in the program or a converter in ... do is have your print routine have two character ... set at print time. If you also put in an ... implemented characters 32-95 in the ASCII set. The ... lower in memory. So when you come across a SPACE (Char 32 ...ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…
... finally begin to learn programming in assembler. [/QUOTE]
a block in ZX-Assembler. There's a problem that ... blocks inside a TAP). For snapshots a simple ASM file could ... ", with comment "routine to print tile to screen", and addresses ...FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... a
ret z ; check string terminator
rst $10 ; print character ... embed the font into the asm instead of loading it from ... channel 4 affect anything else in a program? (like changing the interupt ...FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... trouble using the FZX driver in asm. I'm calling it ... of this string...
or a
ret z ; check ... preserve HL
call START ; print character
exx ; recover HL ...Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
... 16-digit numbers"'
"in two 4x4 blocks"'
... and left zero-pad a 16-char string
ld ... the initial register values are in WORKSP.
di
a$(a)="0" THEN NEXT a
;1393 PRINT "= "'a$(a TO)'32-a+1;" ...Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... describe below. It allows z80 asm code to call C libraries ... stuff placed around function calls) in most programs.
[code ... flag be used instead of a char or int?
Do existing ... br />
information in bc (the original char *s), the z flag ...Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... ]int __FASTCALL__ calccoords(unsigned char *yx)
{
#asm
;stuff deleted ... is, where the entirity of a C function is just inline ... doing this over putting it in a .asm file and calling the assembler ...The making of R-Type on the speccy book, free downloadBob Pape, the guy who wrote R-Type on the speccy has made his book, "IT'S BEHIND YOU: the making of a computer game", available for free download: [u…
... .. think of them as a layer separate from chars.
in ASM then grab the line of ... / right and then add another char + add or minus to $ ... and 3... BUT you have a LSB / MSB bit.. because ... is doing etc . (freeze a game etc.. go into monitor ...Basic sourceAre there any utilities available that will extract Basic source to a text file, or insert it from a text file into any of the common formats lie z80…
... lines were being typed in on a Spectrum, so lines can ... at the top of the ASM listing, run it and ... it can be saved in any format supported by ... encounter the second quirk, in that all the spaces have ... generally just use Fuse to print a snapshot to text, unless ...A few questions about ZX Spectrum assemblyHi, I have a few questions about ZX Spectrum assembly language programming: - What's the best assembly tool for ZX Spectrum? I tried a bit the ZXSpi…
... tutorial? The examples provided in that page don't ... br /> [CODE]LET A=PEEK 30000: PRINT A[/CODE]
and ... is to work away in the Zeus Assembler and ... resembles how programmers back in the day prepared software. ... assemble both the zeus_ex1.asm and the Hall of ...z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... switch( in_Inkey() ) {
case 'a':
printf("hello");
in asm below as the ... /> M_BEGIN_ISR_LIGHT(my_isr)
{
char c;
if (( ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... incorporate both C and asm, so pretty much anything ... it difficult to build a channel in z88dk? it will need ... out pointer and an in pointer and probably much ... sprintf(), eg, to print text to a 0-terminated buffer ... and compile it as a library in z88dk. Then if ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... ,2,9}
};
// A Hashed UDG for Background
in ASM at End of File
;Sort Priorities: Mask, Char line, Y char, X char
;Data Outputted: Gfx ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... uchar i;
#asm
exx
#endasm
...
#asm
exx
[COLOR="Red ... data structures, probably resulting in a crash and if you are ... s chars and drawing each char (this bypasses sp1_UpdateNow). Now ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... /> };
// A Hashed UDG for Background
in ASM at End of ... );
break;
case 'a':
se = ... ;Sort Priorities: Mask, Char line, Y char, X char
;Data Outputted ...Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…
... a,a ; multiply by 8
add a,a
add a,a
add a,(iy ... Variable to Sprite Graphics Declared in ASM at End of File
;Sort Priorities: Mask, Char line, Y char, X char
;Data Outputted: Gfx ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... />
[quote]
You can print strings to the screen on ... the background, but can you print numbers?[/QUOTE]
You ... can do a C loop that will construct a score in a string that ... 's very easy to wrap asm inside a C function.
Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…
... in pixels
char dy; // signed vertical speed in pixels
char ... to Sprite Graphics Declared in ASM at End of File< ... a,a ; multiply by 8
add a,a
add a,a
add a ...Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... /> [code]
; Massive.ASM
; print a very long binary number as ... ;add bits in groups of 3
Loop1: ld a,(hl) ;A =next ... bc ;length of octal number in ASCII bytes
pop de ...
