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Another atempt at MSX ASM programming

by iamweasel2 on 30-09-2020, 17:45
Score: 167.95 %, Type: Forum topic , Comments: 26 comments
a simple example to input 2 numbers in MSX-DOS. bdos: equ 0x0005 string_out: equ 0x09 buffer_input: equ 0x0a org 0x0100 ld ... $' crlf: db 0x0d, 0x0a, '$' buffer: ds 0x07, 0x00 Thanks ...

Blocking RAM memory writes while debugging

by iamweasel2 on 08-12-2020, 13:06
Score: 169.58 %, Type: Forum topic , Comments: 1 comment
Hi, Is that possible to block writes to a specified RAM place while debugging in openMSX ? I mean, to temporary convert for instance 0x9000 to 0x9500 in a ROM inside the RAM memory? Wouter told me: the only Wouter told me: the only thing i can think of is to install a watchpoint ...

Calling Basic routines from ASM

by iamweasel2 on 30-10-2020, 17:09
Score: 168.62 %, Type: Forum topic , Comments: 19 comments
play through an ASM code working here: PLAY: EQU 0x73E5 org 0xD000 start: ld hl,buffer call PLAY ret buffer: db 34,"CDE",34,44,34,"dfg",34,0 ... wrote: PLAY: EQU 0x73E5 You should thoroughly test such addresses in the middle of the BASIC ...

Copying data from File to Vram

by iamweasel2 on 02-12-2020, 21:11
Score: 169.46 %, Type: Forum topic , Comments: 8 comments
ldirvm: equ 0x005C CALSLT: equ 0x001C EXPTBL: equ 0xFCC1 org 0x100 START: ld a,2 ... NAME OF THE FILE (WITHOUT EXTENSION) ; AND PUTS in the FCB. LD HL,082H LD DE,FCB+1 START0: LD A,(HL) CP 0DH JR Z,START1 LD (DE),A INC HL INC DE JR START0 ; Open file ...

Endurance - A racing game remake

by iamweasel2 on 24-05-2020, 18:43
Score: 195.47 %, Type: News post , Comments: 10 comments
Originally released for Atari 2600, Enduro is a classic racing game made by Activision. Fabio Ritter developed a remake of this game, including different options, like a classic version (same as Atari 2600) and an enhanced mode, with new graphics ...

FM register log

by iamweasel2 on 29-11-2020, 01:08
Score: 170.12 %, Type: Forum topic , Comments: 20 comments
A series of commands. An AY-3-8910 write looks like A0 rr vv . An YM2413 write looks like ...

Hanoi Tower in Basic

by iamweasel2 on 12-04-2020, 05:28
Score: 164.24 %, Type: Forum topic , Comments: 4 comments
movetower(discs,'A','C','B'); return 0; } example 100 PRINT "HANOI example 100 PRINT "HANOI ... return; } for(i=0; i<=count; i++) { s[count] = 65 + i; nest(count + 1, s); } } int main(void) { char s[] = "123"; nest(0, s); return 0; } - This is NG 100 S$="123" 120 ...

Hero level editor

by iamweasel2 on 08-10-2020, 16:23
Score: 168.2 %, Type: Forum topic , Comments: 18 comments
Anyone saw this? https://twitter.com/qarlosherrero/status/1313127324058112001... Hero is a great game, I certainly would like to see a new version of this classic game with new levels on it. :) Cool, a H.E.R.O MSX2(+) Cool, a ...

How is that possible?

by iamweasel2 on 18-10-2020, 17:36
Score: 172.57 %, Type: Forum topic , Comments: 36 comments
like DMA controller etc which are operated via I/O and utilize ports in the range 0-255 (while leaving ... code The code space (address) of the host CPU is Page 0 (0000H ~ 3FFFH). Anyway, because of interrupt processing, writing Page 0 will take up less space. For reference, Page 1 and 2 are used ...

Just for fun

by iamweasel2 on 29-11-2020, 05:54
Score: 169.22 %, Type: Forum topic , Comments: 1 comment
MSX1 with PSG only... Let´s correct this big injustice and bring this classic game to MSX1 in a decent version ! https://msxpen.com/codes/-MNHIh9YWm4xKb-WabLT PS: yes, I know that using PS: yes, I know that using huge dumps of ...
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