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Setting up a command on V9990

by Metalion on 01-01-2020, 14:26
Score: 152.65 %, Type: Forum topic , Comments: 8 comments
do_command test word 0,0,32,32,64,64,0,0FFh,6666h,6666h byte 20h do_command ld a,32 out (reg_select),a ... debuggable from the openMSX console with: debug read Sunrise\ GFX9000\ regs [n] Where [n] is 0 ... with the stand corrected, with the debugger version I have also the high regs always show 0, perhaps a bug indeed ...

[WTB] TMTLogic GFX-Nine / Tecnobytes PowerGraph Light

by Metalion on 05-01-2020, 16:21
Score: 152.62 %, Type: Forum topic , Comments: 1 comment
Hello, As the title says, I'm searching for a V9990 extension. Either a TMTLogic GFX-Nine or a Tecnobytes Powergraph Light . Thanks. Technobytes are running a Technobytes are running a pre-order on a new batch, in case ...

ASCII 8 mapper does not work

by Metalion on 05-01-2020, 18:15
Score: 152.76 %, Type: Forum topic , Comments: 9 comments
at the beginning to facilitate the automatic recognition : ld a,0 ld (6000h),a ld a,1 ld (6800h),a ld a,2 ... call 138h [2] rrca and 03h ld c,a ld hl,0FCC1h add a,l ld l,a ld a,(hl) and 80h or c ld c,a [4] inc l ld a,(hl) and 0Ch or c ld h,80h jp 24h What I do not understand, is that it works ...

Do you always use di/ei for VDP access ?

by Metalion on 06-01-2020, 13:41
Score: 152.77 %, Type: Forum topic , Comments: 9 comments
Hi everyone, Do you use di/ei for every case of VDP access ? It seems to me it can be avoided when it's a port where ISR will not access. For example, loading the palette colors on the V9938: ld hl,palette ld bc,16*2:9Ah xor a ...

What is the best small 4/3 flat screen solution ?

by Metalion on 18-02-2020, 09:27
Score: 153.43 %, Type: Forum topic , Comments: 18 comments
a https://www.benq.com/en-us/monitor/stylish/gw2283-22-inch.html with the Open Source Scan Converter (OSSC). Works perfect :) I did choose the monitor because ...

[WTS] Vampire Killer

by Metalion on 01-03-2020, 09:51
Score: 153.67 %, Type: Forum topic , Comments: 2 comments
Hello, Located in Belgium, price without shipping : . Vampire Killer (EU version), cartridge only (very good) and manual (worn) : 70 euros . Vampire Killer (JP version), cartridge only (excellent) : 90 euros PM me at metalion (at) orange ...

Several games for sale

by Metalion on 06-05-2020, 18:51
Score: 154.98 %, Type: Forum topic , Comments: 4 comments
Hello, For sale : - Rastan Saga: complete with manual in french and in english - 80€ - Vampire Killer: only the cartridge, japanese version - 50€ - Nemesis: complete - 40€ - Pennant Race 2 (SCC): only the cartridge - 40€ Thank you. ...

Undestanding H.KEYI and H.TIMI

by Metalion on 25-05-2020, 12:37
Score: 155.38 %, Type: Forum topic , Comments: 6 comments
: - push all registers - call H.KEYI - read S#0 - if S#0 is positive (bit 7=0) then exit ISR ... confirmed (S#0 bit 7=1) BUT ... There's a test of S#0 bit 5 just after H.TIMI to check ... collision. Questions: - Is the S#0 bit 7 ("F") only set by VBLANK ? - Could it be set ...

VDP commands in SC4

by Metalion on 04-06-2020, 16:56
Score: 155.58 %, Type: Forum topic , Comments: 6 comments
Hi, Are the VDP commands totally disabled in SC4 ? Or is it just some of them ? On the V9938 VDP commands do On the V9938 VDP commands do not work in modes below screen 5. Actually, I seem to recall reading they do work during blanking, ...

Overscan

by Metalion on 05-06-2020, 21:00
Score: 155.58 %, Type: Forum topic , Comments: 5 comments
You can blank, yes, however You can blank, yes, however it won’t un-blank automatically on line 0 ...
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