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openMSX fake I/O

by NYYRIKKI on 26-10-2022, 20:04
Score: 182.21 %, Type: Forum topic , Comments: 1 comment
can for example give command: debug set_watchpoint write_io 0x8 {} {set ::MyValue ... with this custom command: wp_after_input 0x8 {} {wp_set_input $::MyValue} ... in theory it works well ... command at $[format %X [expr [reg pc]-2]]"} } } set MyValue 8 debug set_watchpoint write_io 0x8 {} ...

SymbOS ASM-Developer kit 1.0

by NYYRIKKI on 31-10-2021, 22:49
Score: 172.15 %, Type: Forum topic , Comments: 19 comments
10,13,"$" .TxtBuffer: db 255,0 ; Must have length of 258 bytes ds 256 Main_Routine: ... ASM-Developer kit 1.0 ! This package includes all you need to know about SymbOS development in a much more ... ld de,.TxtBuffer+2 ld l,a ld h,0 add hl,de ld ...

Modern BASIC stuff by NYYRIKKI

by NYYRIKKI on 05-10-2021, 16:52
Score: 169.93 %, Type: Forum topic , Comments: 57 comments
until I get loading and saving to work :) S0urceror wrote: I see you S0urceror wrote: ... perspective SymbOS 3.1 will be much more memory efficient compared to SymbOS 3.0. Naturally I've also ...

DOOM on SCREEN 12!

by NYYRIKKI on 22-09-2021, 22:02
Score: 169.71 %, Type: Forum topic , Comments: 44 comments
Impressive. Was it ported from TI-83 calculator? EDIT: found this video: https://youtu.be/nduMTX86Zl0 ... it on my CPC: https://www.youtube.com/watch?v=AL3d7LqM0lY I did some optimizations, but only ... about any Great work! What about any sound effects, are those impossible to add? Doom 1.0 ...

VDP... and some really deep stuff. :)

by NYYRIKKI on 13-09-2021, 03:52
Score: 169.07 %, Type: Forum topic , Comments: 13 comments
control the individual bits by using keys 0-3 and see easily how it is done. Instead of being impressive, ... that results either B or 0. On VDP we can't do "IF A AND 1 THEN R=B ELSE R=0" approach because these are areas and VDP does not have "IF". This is why we do AND A(0) against all bits of B. Result ...

New "SCREEN 9" found from V9958!

by NYYRIKKI on 06-09-2021, 22:26
Score: 169.04 %, Type: Forum topic , Comments: 6 comments
you'll get my point: 100 SCREEN 11 110 SX=128:SY=0:NX=127:NY=105:DX=0:DY=0 120 GOSUB 150 130 A$=INPUT$(1) 140 END 150 ' RGB copy 160 A=POINT(0,0):VDP(0)=14:POKE &HFCAF,8 170 COPY (SX,SY)-STEP(NX,NY) TO (DX,DY),,OR 180 A=POINT(0,0):VDP(0)=10:POKE &HFCAF,7 190 FOR I=0 TO NX 200 COPY ...

Combine SC5 & SCA picture

by NYYRIKKI on 15-08-2021, 23:48
Score: 168.51 %, Type: Forum topic , Comments: 5 comments
P(31):COLOR 15,0,0 20 SCREEN 11:SET PAGE 1,1:CLS 30 BLOAD"ANIMALS.SCA",S 40 SCREEN 5 50 BLOAD"POOH.SC5",S:COLOR=RESTORE 60 FOR I=0 TO 31:P(I)=VPEEK(I+&H7680):NEXT ' SAVE SC5 PALETTE 70 COPY (1,0)-(255,211) TO (0,0),2 80 A=POINT(0,0) ' WAIT 90 VDP(0)=10:POKE &HFCAF,7 ' SCREEN 7, NO CLS 100 FOR I=1 TO ...

Why my cartridge does not work?

by NYYRIKKI on 21-03-2021, 21:42
Score: 168.88 %, Type: Forum topic , Comments: 11 comments
where to start tracing the problem. The "0v" and "5v" voltages mentioned by software ... your program. It shows D0 to D7 all fail: =5v So what exactly does it mean this =5V ? 5v, +12, -12 voltages are al there as I measured. Also A0 to A13 failed also. Great stuff. I've ...

Help: Sound design tool

by NYYRIKKI on 31-01-2021, 07:05
Score: 166.55 %, Type: Forum topic , Comments: 2 comments
Hello, I'm looking for MSX-MUSIC sound design tool I saw somewhere in mid 90's... It was just a simple MSX-BASIC tool pretty tightly build around CALL VOICECOPY -command. On top of the screen you were able to see graphical ...

PSG music to FM

by NYYRIKKI on 17-01-2021, 18:44
Score: 162.69 %, Type: Forum topic , Comments: 3 comments
I needed a small size routine to convert PSG frequencies to MSX-MUSIC, but I couldn't find any ready made. After some iterations I came up with this horrific piece of assembly nightmare... I wanted to share it, because I must say I feel pretty ...
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