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Launch emulators from command-line

by aoineko on 30-12-2021, 01:58
Score: 159.61 %, Type: Forum topic , Comments: 19 comments
In the C-BIOS 0.29 package In the C-BIOS 0.29 package there are: - cbios_basic.rom - ...

Space Harrier

by ARTRAG on 29-12-2021, 20:34
Score: 159.51 %, Type: Forum topic , Comments: 1 comment
https://youtu.be/W3kB0TdrHPw Yep, I saw it. Seems like Yep, I saw it. Seems like some kind of direct port/emulation from Sega Mark III (Master System) version (Development) ...

How to subtract a negative 8bit number from a 16bit one?

by thegeps on 26-12-2021, 17:51
Score: 159.39 %, Type: Forum topic , Comments: 10 comments
I'm doing it: ld d,a ;a is 0 from previous code, so it is like ld d,0 ld ... so dx and dy values vary from 0 to 3 and are the values you can see in Turrican videos) and a jp ... hl inc a ;using dx as counter increasing it until 0 jp nz,dx_negative_fix jp ...

Which MSX2 has the slowest VDP? Panasonic turbo-R and A1-WSX?

by Bengalack on 25-12-2021, 16:49
Score: 159.41 %, Type: Forum topic , Comments: 16 comments
of time that is spent in the "border"-area, between last line (192) and the first (0). I ... different tasks, due to different hardware) Thanks, but no, I have my own code at 0x0038 and doing IM ... cycles = 0; if (const auto* t9769Dev = devices.findChild("T9769")) { ...

MSXmas '21 Simple game for christmas / MSX 2 / SC5 / Unfinished work

by albs_br on 24-12-2021, 19:01
Score: 159.43 %, Type: Forum topic , Comments: 5 comments
Hi guys, I made a simple game as my learning exercise for MSX 2 programming. Unfortunally I couldn't finish it before the deadline. But what I already made is playable, and I think is cool enought to share: ...

Routine to bypass a firmware

by gdx on 23-12-2021, 12:36
Score: 161.11 %, Type: Forum topic , Comments: 97 comments
a conflict. Used routine is: ld hl,0FCD9h ld b,020h xor a Loop: or (hl) inc hl djnz Loop ... 0-x or 3-x ; ; Output: Back with Z flag reseted if ROM cartridge is found RDSLT equ 0000Ch ; Read a byte in a Slot Firmware equ 0xxxxh ; Specify the firmware start address here org 0xxxxh ; Specify ...

Basic question about DIM

by Mafcase on 15-12-2021, 23:42
Score: 159.03 %, Type: Forum topic , Comments: 1 comment
Is it possible to define a array with a variable? Something like this: A=2 DIM X(A) Is there a way to achieve this? Thanks in advance Never mind... Found out Never mind... Found out myself (Development) ...

MSX2 sprite manager

by pizzapower on 15-12-2021, 20:00
Score: 159.08 %, Type: Forum topic , Comments: 19 comments
of S#0) I could juggle the sprites in and out of screen by assigning, say, 254 to Y until I have a maximum ... project Here direct SAT is at 0FA000h and one is at 0FE00h The code is studied to not update ...

ROM starting in page 0 or 3?

by aoineko on 15-12-2021, 19:17
Score: 159.25 %, Type: Forum topic , Comments: 18 comments
with the first statement: - Plain rom start at 0x0000 - Plain rom start at 0xC000 - Plain 16kB page 0 - ... sense because Case 1 makes sense because you may have data in page 0 and still an AB magic in page ... in OpenMSX, I found 4 that seem incompatible with the first statement: - Plain rom start at 0x0000 - Plain ...

How are the values of EXPTBL initialized?

by aoineko on 13-12-2021, 21:11
Score: 159.15 %, Type: Forum topic , Comments: 9 comments
register. Whatever value in RAM or ROM at 0FFFFH in any of the expanded slots can not be accessed, ... if the slot is expanded: ld hl,0FFFFH ld (hl),0F0H ld a,(hl) ... nope, So 0F0H is written first and checked if 00FH is read back (so inverted) Next 000H is written ...
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