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Back to MSX1 palette on MSX2

by Metalion on 22-11-2022, 11:32
Score: 199.16 %, Type: Forum topic , Comments: 8 comments
routine: ; Routine to initialize colors palette under MSX-DOS EXBRSA equ 0FAF8h ; Sub-ROM slot number ... call CalSUBslt: db 0 ; Slot number CalSUBadrs: dw 0 ; Address ret By direct access to VDP: VDP_DW equ 00007h RG16SAV equ 0FFEFh ; Routine to initialize colors palette (MSX2~) ; ; Modify: AF, BC, ...

SPAT update on V9990

by Metalion on 16-10-2022, 14:41
Score: 197.91 %, Type: Forum topic , Comments: 28 comments
this one from Mega. https://mega.nz/file/uxkm1IYS#QhrHoofh-trtUP1CQ0AAC8JIi-Lk-i... Not sure how ... ... Unless you are speaking of the 8 possible offsets for the sprite pattern table (all in VRAM 0 ... offset: 0, 16, 32 and 48. I am more precise. I have the I am more precise. I have the first 64 ...

V9990 command with NX> image size

by Metalion on 25-09-2022, 21:15
Score: 196.88 %, Type: Forum topic , Comments: 5 comments
Hi, I'm making a LMMM command with SX>0 and NX>256 . What pixels ... is specified and rolling to "0" occurs when the specified range exceeds the image size What do they mean by " rolling to zero " ? rolling to 0 means reset to 0 rolling to 0 means ...

V9990 registers at command termination

by Metalion on 11-09-2022, 08:35
Score: 196.31 %, Type: Forum topic , Comments: 11 comments
---------------------------------------------------------------------------- | HMMC | --- | --- | --- | . | --- | # | --- | 0 | --- | --- | ---------------------------------------------------------------------------- | YMMM | --- | . | --- | . | --- | # | --- | 0 | --- | --- | ---------------------------------------------------------------------------- | HMMM | --- | . | --- | . | --- | # | --- | 0 | --- | --- | ...

[v9990] palette split

by Metalion on 17-05-2022, 09:06
Score: 192.49 %, Type: Forum topic , Comments: 11 comments
over full screen width (using PRY0 & PRY1), if that works it could be interesting after all indeed! ... for myself on my TMTLogic GFX-nine. I need to set up priority to layer A from y=0 to y=164, ... reset to layer A full priority, i.e. PRY=0 in R#27? Or does de vdp simply ignore the register update ...

Help on BMP2G9B

by Metalion on 15-05-2022, 13:39
Score: 193.09 %, Type: Forum topic , Comments: 6 comments
Hi everyone, I'm trying to use BMP2G9B, but I'm unable to obtain the help file. On the Team Bomba website, they say that the tool has a built-in help. I've tried "bmp2g9b -help", "bmp2g9b -h"," bmp2g9b ...

OpenMSX - V9990PixelRenderer::updateScrollAYLow()

by Metalion on 10-05-2022, 13:35
Score: 192.4 %, Type: Forum topic , Comments: 7 comments
(only 0-255, so writing only on R#21), and restore it at VBLANK. It does not work, and I don't understand why. Furthermore, I tested writing 0 at HBLANK, and writing again 0 at VBLANK (basically ... line of the screen (y=0) is located at that HBLANK line. Metalion wrote: I'll test ...

Sprite detection routine (calling Artrag)

by Metalion on 10-08-2021, 22:40
Score: 184.09 %, Type: Forum topic , Comments: 10 comments
under the top border add (ix+6) ; add y offset within the sprite 1 (yoffset1) ld e,a ld d,0 ; de = ... (yoffset2) ld l,a ; ld h,0 ; hl = y2 + yoffset2 + 32 ld h,d <=== optimization Metalion wrote: How ... being 0. If a collision is possible on the Y-axis then the code checks to see if there is a collosion ...

Inserting an SFX in a track playing

by Metalion on 31-07-2021, 20:50
Score: 184.1 %, Type: Forum topic , Comments: 13 comments
frame, whether needed or not. A rest, for example, must write 0 to channel volume at each frame. Same ...

PSG envelope control reset

by Metalion on 25-07-2021, 15:39
Score: 183.83 %, Type: Forum topic , Comments: 3 comments
Hi everyone, A simple question, but I cannot find the answer. When using the envelope control on the PSG, if the envelope chosen is not repetitive (like envelopes 1,9 or 15 for example), after the volume has died down, the following notes are ...
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