Sega Genesis Dev Kit (SGDK)

Stef · Post by **Stef** » Thu Dec 13, 2012 12:30 am

A new version of SGDK is finally out

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

bioloid · Post by **bioloid** » Fri Dec 14, 2012 8:29 pm

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

oofwill · Post by **oofwill** » Mon Dec 17, 2012 9:17 am

Thanks, some features will be usefull here

Stef · Post by **Stef** » Mon Dec 17, 2012 12:21 pm

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 · Post by **Manveru** » Fri Jan 11, 2013 12:55 pm

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

djcouchycouch · Post by **djcouchycouch** » Sun Jan 13, 2013 10:40 pm

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

DJCC

oofwill · Post by **oofwill** » Mon Jan 14, 2013 4:50 pm

With the last update, yes.

You can read this thread to learn more about savegame

Moon-Watcher · Post by **Moon-Watcher** » Fri Feb 01, 2013 10:02 am

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 · Post by **oofwill** » Wed Feb 06, 2013 10:30 pm

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 · Post by **Chilly Willy** » Wed Feb 06, 2013 10:49 pm

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

oofwill · Post by **oofwill** » Wed Feb 06, 2013 10:53 pm

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 · Post by **Stef** » Thu Feb 07, 2013 8:45 am

Moon-Watcher wrote: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 · Post by **Moon-Watcher** » Wed Feb 13, 2013 10:55 am

Stef wrote: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 · Post by **Stef** » Wed Feb 13, 2013 8:08 pm

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 · Post by **Moon-Watcher** » Thu Feb 14, 2013 9:38 am

Stef wrote: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.