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Blocking RAM memory writes while debugging

by iamweasel2 on 08-12-2020, 13:06
Score: 170.77 %, 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 ...

Scanning memory changes in debugger

by iamweasel2 on 07-12-2020, 18:16
Score: 170.67 %, Type: Forum topic , Comments: 2 comments
I would like to know if it is possible to set a breakpoint that is triggered when a write to a certain region of memory happens. Is that possible? If it is, how can I do that? At least it is possible in At least it is possible in the console ...

openMSX trainer tutorial

by iamweasel2 on 07-12-2020, 14:46
Score: 170.71 %, Type: Forum topic , Comments: 4 comments
https://www.youtube.com/watch?v=SZyghY0X21A This is some very old stuff - it still works like this Thanks Vampier. Thanks ...

Copying data from File to Vram

by iamweasel2 on 02-12-2020, 21:11
Score: 170.65 %, 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 ...

loading big files in VRAM

by iamweasel2 on 30-11-2020, 04:20
Score: 170.57 %, Type: Forum topic , Comments: 5 comments
; ; OpenFile: equ 0x0f UpdateFile: equ 0x10 SetBuffer equ 0x1a GetFileSize equ 0x23 ReadRecords: equ 0x27 CHGMOD: EQU 005FH ldirvm: equ 0x005C CHGET equ 0x009F BDOS: equ 0xf37d ; ; macro that creates a FCB structure ; macro ...

Just for fun

by iamweasel2 on 29-11-2020, 05:54
Score: 170.41 %, 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 ...

FM register log

by iamweasel2 on 29-11-2020, 01:08
Score: 171.31 %, 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 ...

Master system music (SN76489) --> MSX

by iamweasel2 on 27-11-2020, 13:35
Score: 170.52 %, Type: Forum topic , Comments: 6 comments
https://www.msx.org/forum/msx-talk/development/found-an-unre... This shows his SN emulator for the AY, and that he used it in his unreleased Gyruss port. ...

Calling Basic routines from ASM

by iamweasel2 on 30-10-2020, 17:09
Score: 169.81 %, Type: Forum topic , Comments: 19 comments
I found I found this: https://www.msx.org/es/forum/debates-en ... https://www.msx.org/es/forum/debates-en-espanol/desarrollo/e... But it is in Spanish. What an amazing link ! Thanks a LOT Manel46, it helped me a LOT ! ... https://www.msx.org/forum/msx-talk/development/msx-basic-arr... Manel46 wrote: I don't know Manel46 wrote: I don't know ...

online MSX C Compiler / PC C compiler

by iamweasel2 on 23-10-2020, 15:39
Score: 169.59 %, Type: Forum topic , Comments: 1 comment
Hi, I was wondering, we have a great MSX Basic and ASM environment available with an web browser, MSX PEN (msxpen.com). It allows you to quickly test Basic and ASM code without installing any tools or emulators, all you need is a web browser. Is ...
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