Search found 477 matches

by r57shell
Wed May 22, 2019 3:19 pm
Forum: Megadrive/Genesis
Topic: I'm officially building a microcode-level 68000 core
Replies: 38
Views: 1149

Re: I'm officially building a microcode-level 68000 core

I wrote this program, dubbed "Schematic Explorer", which can directly load in the schematic svg, and allow you to rotate and zoom in easily, while also throwing in color, tooltips, dynamic highlighting of lines on mouse-over, and the ability to add custom comments and "annotation" overlays to docum...
by r57shell
Sat Dec 01, 2018 10:27 pm
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 70
Views: 10484

Re: Algorithm for splitting sprites

Here is my ultimate version of sprites splitter. It's most advanced and expensive approach that I came up with so far. It's command line program. just run it without args to get usage. https://www.mediafire.com/file/fm111c159ietwnl/sprites_split.exe/file Ah. It reads from stdin, so if you want to fe...
by r57shell
Tue Oct 24, 2017 9:28 pm
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 70
Views: 10484

Re: Algorithm for splitting sprites

If the image size is not 8-pixels aligned, it generates the 8-pixels aligned images, with an offset on width and height, up to 49 images (7 pixels width offset x 7 pixels height offset). Either description or your algo is incorrect. It should be 64 images 8x8 offsets. Anyone up to making testing of...
by r57shell
Tue Oct 17, 2017 3:58 pm
Forum: Tools
Topic: aPLib decruncher for 68000
Replies: 48
Views: 19577

Re: aPLib decruncher for 68000

Yet another update of my packer. https://www.mediafire.com/file/22a2f2jzg2jfio9/aplib_pack2.exe It had stupid bug with if () .. if () ... instead of if () ... else if () ... Now it's fixed. It was hitting only copy comands when their offset >= 32000. Thus, if your file is less than 32000, it was nev...
by r57shell
Wed Sep 20, 2017 6:39 pm
Forum: Blabla
Topic: GEMS YouTube video
Replies: 91
Views: 20776

Re: GEMS YouTube video

For those who don't wan't to compile rewind straight to 58 minute.
https://youtu.be/xqBF0zNh57s
ATM considering to keep it private or make it public.
I so shame :oops: about my eng, length, and lags because of compilation & stream.
All links in the comments.
by r57shell
Thu Sep 14, 2017 9:45 am
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

here also without bne.s start: http://www.mediafire.com/file/46op66mkn29uua8/m68k_opcode_sizes_test1.bin It's fine now on MED but on raw flashcart it still black screens ~80% of the time. I remember once my test ROM was failing because of bug in flashcard with size alignment. So, if without bne.s st...
by r57shell
Wed Sep 13, 2017 3:09 pm
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

I just put common MD initialization, so I thought flashcart should not have any issues with it, because it runs many games very well which has similar MD initialization. Here is test new version: http://www.mediafire.com/file/jl2227tc4rk205k/m68k_opcode_sizes_test.bin Tell me if it fails or success....
by r57shell
Wed Sep 13, 2017 12:25 pm
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

Nice!
Should I also remove warm-boot check?
Is filtering RESET passes test?
by r57shell
Tue Sep 12, 2017 7:08 pm
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

I can't send compiled update one until I update it.
At this moment I don't know what to fix.
Can someone at least figure out why backdrop is purple.
It should not be so if VDP works correctly.
by r57shell
Mon Sep 11, 2017 11:37 am
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

EDIT: I've retried maybe 20 times with this flashcard and it worked 2 times to completion (2 green tiles), all other times just black screen. Maybe you're inadvertently using uninitialized RAM or some register? https://github.com/realmonster/smd_emu_tests/blob/master/m68k_opcode_sizes.asm#L217 This...
by r57shell
Sun Sep 10, 2017 7:04 pm
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

I have no idea. Is it official MD? Normaly passed check is two green big tiles. All other results I consider as some bug, or flashcart issue. Screen should not be purple, It should be black with blue pixels in MD region. I setup palette at start, and never change it. And backdrop color is set to zer...
by r57shell
Wed Sep 06, 2017 12:26 pm
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 70
Views: 10484

Re: Algorithm for splitting sprites

Your example is not sprite. It's just "idea" of sprite. So, I should make image first, and then feed it into my algo, then it will return list of coords, that I should also visualize somehow. Unless if I put it into ROM, then run in my gens mod, which may show sprite borders. All above requres some ...
by r57shell
Sat Sep 02, 2017 4:17 pm
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 70
Views: 10484

Re: Algorithm for splitting sprites

as I see, no one tried my algo. :(
I'm not PR machine of my tools / researches / developements.
by r57shell
Fri Sep 01, 2017 7:23 pm
Forum: Megadrive/Genesis
Topic: M68k opcode sizes test ROM
Replies: 19
Views: 3666

Re: M68k opcode sizes test ROM

Post processing code added.
by r57shell
Fri Sep 01, 2017 4:18 pm
Forum: Tools
Topic: aPLib decruncher for 68000
Replies: 48
Views: 19577

Re: aPLib decruncher for 68000

flamewing wrote:
Fri Sep 01, 2017 3:34 pm
Yeah, it can definitely achieve perfect compression with my generic LZSS backend; this format is a LZ variant.
Nope, Trouble is last_offset & LWM.