#89307 - bobert111 - Sat Jun 24, 2006 3:19 am
Is there any easy way to port C code to the gba? I am interested in porting Ruby to the gameboy after I saw that Python had been ported to the DS. I prefer Ruby so I thought about porting it. So can anyone point me in the right direction? You can find the source at http://www.ruby-lang.org/en/20020102.html
#89337 - keldon - Sat Jun 24, 2006 9:57 am
How well can your program? The main devkit for the gba is c/c++.
#89357 - tepples - Sat Jun 24, 2006 2:31 pm
But can the Ruby runtime fit in the 256 KB of EWRAM + 32 KB of IWRAM + the 80 KB of the 96 KB of VRAM that a simple text display does not use?
EDIT: corrected memory sizes
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Last edited by tepples on Fri Sep 22, 2006 9:41 pm; edited 1 time in total
#89431 - Dwedit - Sat Jun 24, 2006 10:18 pm
Don't forget that a cartridge provides 32MB of ROM, and 64k of sram. Some cartridges even contain 32MB of usable RAM.
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#103521 - madmax - Fri Sep 22, 2006 4:40 pm
Hi guys
Tepples is your statment about memory sizes right ? I was under the impression you have less IWRAM than EWRAM. I see lots of programs trying to push nearly everything onto EWRAM because there worried about running out of IWRAM.
Anyway just thought I'd point that out
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#103530 - DiscoStew - Fri Sep 22, 2006 5:33 pm
Yeah, he meant the other way around.
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#103578 - tepples - Fri Sep 22, 2006 9:43 pm
| Dwedit wrote: |
| Don't forget that a cartridge provides 32MB of ROM, and 64k of sram. Some cartridges even contain 32MB of usable RAM. |
Don't forget that all that a lot of people have is a GBA Movie Player, and that you succeeded in your heroic attempt to get emulators working on it. But don't forget that the technique you used, a swap file on flash memory, is good only for read-only access, and a lot of programs have more than 256 KB of mutable state.
Don't forget that most C compilers don't understand the quirks of the GBA memory controller that require different write sizes in different address spaces. For example, 8-bit writes to 0x05000000 through 0x0DFFFFFF don't work properly, and 16-bit or 32-bit writes to 0x0E000000 through 0x0E00FFFF don't work properly.
_________________
-- Where is he?
-- Who?
-- You know, the human.
-- I think he moved to Tilwick.