Sega Genesis Dev Kit (SGDK)

[Stef]

A new version of SGDK is finally out

Links and changelog on the first page :
viewtopic.php?t=14

[bioloid]

Good news, going to play as soon as possible! MegaThanks.

[oofwill]

Thanks, some features will be usefull here

[Stef]

Again a new version : 0.93b
I needed to fix some stupid issues, here's the complete changes log :

* Fixed a stupid bug in deprecated memory functions.
* Added Bitmap structure for easier bitmap manipulation (created from .bmp resources).
* Modified Plan A & Plan B location in VRAM.
* Added methods to modify Plan A, Plan B, Window, Sprites list and H Scroll table in VRAM.
Note that doing that you may have troubles with SGDK methods which use hardwired locations.
* VDP_setSpritesDirect(..) method so you can now senn a SpriteDef array buffer directly to the VDP.
* Handle a new resource type : WAVPCM (.wavpcm)
The file file is transformed to adpcm data and can be played directly from the 2 channels ADPCM driver.
Note that WAV sample rate should be at least equals to 22050 Hz.
* Fixed a bug in bintos tool.
* New wavtoraw tool, source is provided.
* Added tools sources.

[Manveru]

I have just discovered the SGDK updates. I like the new features and changes, great job Stef.

[djcouchycouch]

Does SGDK help in any way with battery backed ram? To have save games?

DJCC

[oofwill]

With the last update, yes.

You can read this thread to learn more about savegame

[Moon-Watcher]

Weird behavior using SGDK last version and Widnows7: depending on the .wav source, wavtoraw.exe, generates 0 byte files, huge files or infinite loops.

[oofwill]

It seems there's an error in sram_a.s file

file is

Code: Select all

SRAM_readWord:
    move.l  4(%sp),d1
    add.l   %d1,%d1
    lea     0x200001,%a0
    lea     (%a0,%d1.l),%a0
    moveq   #0,%d0
    movep.w 0(%a0),%d0
    rts

think it should be

Code: Select all

SRAM_readWord:
    move.l  4(%sp),%d1<--------------------% is forgotten
    add.l   %d1,%d1
    lea     0x200001,%a0
    lea     (%a0,%d1.l),%a0
    moveq   #0,%d0
    movep.w 0(%a0),%d0
    rts

[Chilly Willy]

If one of the assembler flags is --register-prefix-optional, then it's fine... they could all be left off.

[oofwill]

When i compile with SGDK & code blocks, this return me error when without %

To say the truth, i don't know how to configure the assembler so it was more easier for me to add the % symbol

[Stef]

Weird behavior using SGDK last version and Widnows7: depending on the .wav source, wavtoraw.exe, generates 0 byte files, huge files or infinite loops.

I have to fix that that Have you some simple wav files leading to these problems ? I rewrote the tool so i am (unfortunately) not too surprised to hear about bugs...

oofwill> Oh you're right, i don't understand GCC did not complained about it during compilation

[Moon-Watcher]

Have you some simple wav files leading to these problems ? I rewrote the tool so i am (unfortunately) not too surprised to hear about bugs...

I uploaded some files here https://www.box.com/s/ykmdyp4mdwe9eunvkacp

[Stef]

Thanks ! I fixed the bug

You can download the last version here :
http://sgdk.googlecode.com/svn/trunk/bin/wavtoraw.exe

If you don't want to wait for the next SGDK release.

[Moon-Watcher]

Thanks ! I fixed the bug

You can download the last version here :
http://sgdk.googlecode.com/svn/trunk/bin/wavtoraw.exe

If you don't want to wait for the next SGDK release.

Woohoo! Thank you so much.