Hi, I cannot figure it out. Does DMA transfers run asynchronously with the CPU or not? I mean, when a DMA transfer is intiated does the CPU wait until its ...
Matthew Davies
MDavies@...
Aug 1, 2000 9:02 am
106
If the DMA stopped the CPU: 1) why 3 dma channels if you can use 1 a time? 2) why an interrupt to acknowledge the end of the dma? 3) what DMA itself would be...
Giovanni Bajo
bagio@...
Aug 1, 2000 9:08 am
107
... GBC halts when doing General Purpose DMA. And HBlank DMA in h-blanks. It's faster than creating a copy loop. But if you have block copy instructions.....
Rafael Vuijk
darkfader@...
Aug 1, 2000 9:12 am
108
... Not really. If you look at a standard DMA routine on GBC, it is copied to $FF00-$FFFE because that's the only area of RAM still readable (and executable)...
Giovanni Bajo
bagio@...
Aug 1, 2000 9:19 am
109
Not really. You mean the old DMA of the B/W gameboy. On the GBC it stops the CPU for sure. Chris Gameboy Lead Programmer Software2000 ... Von: Giovanni Bajo...
Chris Schmitz
Chris.Schmitz@...
Aug 1, 2000 9:22 am
110
I didn't mention OAM/sprite DMA. Dark Fader...
Rafael Vuijk
darkfader@...
Aug 1, 2000 9:24 am
111
In message <17398269E24ED31180940090279C2CE9C48324@ASC-NT-EXCH1> ... Hmm, i can think of a third possibility... Maybe the CPU stops when you try to write to...
Dennis Ranke
exoticorn@...
Aug 1, 2000 9:26 am
112
I wasn't aware of this. thanks for the info. ... Giovanni Bajo Lead Programmer Protonic Interactive www.protonic.net a brand of Prograph Research S.r.l. ...
Giovanni Bajo
bagio@...
Aug 1, 2000 9:32 am
113
Hi, Thinking about it, DMA must run in parallel because of the DmaWait() and DmaStop() macros that are defined in AgbMacros.h. But that still doesn't change...
Matthew Davies
MDavies@...
Aug 1, 2000 9:56 am
114
Hi, Do any of you have TS2 boards yet? Can you confirm whether the new 256K external WRAM has a 8-bit or 16-bit bus connection? Cheers! Matt J. Davies ...
Matthew Davies
MDavies@...
Aug 1, 2000 11:51 am
115
Could someone please share with us the following information about GBA. At the very least I would really like to know the top 3. Thanks. 1. How much Ram the...
mike@...
Aug 5, 2000 6:13 am
116
hello ppl, ive been moving and stuff.. now im back. msn> Could someone please share with us the following information about msn> GBA. At the very least I...
anarko
lindhe-martin@...
Aug 5, 2000 12:52 pm
117
... hfreq=13.618khz vfreq=59.727hz of help?...
anarko
lindhe-martin@...
Aug 5, 2000 1:14 pm
118
1024 / 256 sprites ?? Small correction ... the maximum is 128 sprites (OAM), ranging from 8x8 to 64x64 I guess you meant background/sprite characters and not...
Tim Schuerewegen
Tim.Schuerewegen@...
Aug 5, 2000 1:15 pm
119
... just a addition to your statement: the GBA use same cartridge connector as the GB/GBC. but with some anti-piracy chip that mirrors the memory banks or...
anarko
lindhe-martin@...
Aug 5, 2000 1:47 pm
120
... 16.78mhz is correct...
anarko
lindhe-martin@...
Aug 5, 2000 1:47 pm
121
... The connector IS definately the same 32-pin one found in the GBC. Though to access the 32MB (read BYTES) or cart space, it multiplexes the address and ...
Web Dreamer
rownik@...
Aug 5, 2000 2:02 pm
122
... And I'm pretty sure the ARM core is fixed in little-endian format for data, which drops the size (and cost) of the die a good bit versus an ...
Web Dreamer
rownik@...
Aug 5, 2000 2:04 pm
123
... I believe it's down to 32K of work ram, and now 256K on cart... strange as it sounds. There is also the video memory, registers, etc. ... 128 on screen at...
Web Dreamer
rownik@...
Aug 5, 2000 3:15 pm
124
Is it confirmed that the WRAM is 256KB now? Or was that just a wild rumour? ... From: "Web Dreamer" <rownik@...> To: <gbadev@egroups.com> Sent:...
Otaku
otaku@...
Aug 6, 2000 10:16 pm
125
Anyone out there who has had some time to play with the AGB dev kits, are you happy with them, or do they leave something to be desired?...
Joshua Meeds
dreamer@...
Aug 6, 2000 11:37 pm
126
... Well, the following is a changelog for the hardware... not sure yet what the final hardware specs will be. =( 1) WRAM decrease from 48K to 32K 2)...
Web Dreamer
rownik@...
Aug 7, 2000 3:43 am
127
... Damn. I had also heard that too but was hoping it wasn't true. Sheeit! ... Ok. This confuses me, the data bus to cart memory is only 16-bit, right? And I'm...
Otaku
otaku@...
Aug 7, 2000 3:56 am
128
Well, I thing they are ok, but they are still playing around with the hardware, so the one I have will not be the final version ... Von: Joshua Meeds...
Chris Schmitz
Chris.Schmitz@...
Aug 7, 2000 8:34 am
129
... Well, I actually hear that the cart ram data bus is only 8-bits, but I could be wrong... ... I'm not too sure, I haven't actually disassembled anything yet...
Web Dreamer
rownik@...
Aug 7, 2000 4:23 pm
130
... strange as ... Alrighty. Are you guys sure the 256k is on the Cart? Or is it a possibility that 32k is like a CPU cache or just High RAM and the 256k is...
Mike K
mike@...
Aug 10, 2000 2:03 am
131
... More info is coming very soon. As the official dev docs ARE copyrighted and protected and all that stuff of Nintendo, It would be awfully foolhardy to ...
Web Dreamer
rownik@...
Aug 10, 2000 5:09 am
132
In case anyone missed them, there are two sets of GBA game screenshots up at pocket.ign.com- so for those who have yet to see its graphical prowess in action,...
Joshua Meeds
dreamer@...
Aug 10, 2000 5:49 am
133
I assume some one, some where, will, at some time, release some thing, that some what resembles a crib sheet too no doubt... ;-) ... From: "Web Dreamer"...
Otaku
otaku@...
Aug 10, 2000 6:51 am
134
Hi, i have some questions Were I can find 1. Docs, soft, SDK for GBA? 2. Updated WWW GBA sites? 3. Big N's engeeners, that make GBA like (_|_) ... And also,...
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