--- Log opened Wed Dec 03 00:00:46 2008
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00:21 -!- mode/#tiasm [+v DrDnar] by SnowCrash
00:21 <+DrDnar> Flash hex editor or fast garbage collect?
00:24 <+Tari> ...?
00:24 <+DrDnar> I'm wondering what to work on tonight.
00:24 <+Tari> ah
00:24 <+Tari> flash hex editor
00:25 <+DrDnar> I figure you could make garbage collection roughly twice as fast if you buffer the sectors to the extra RAM instead of the swap sector.
00:25 <+Tari> oh yeah
00:25 <+Tari> probably
00:26 <+Tari> hmm
00:26 <+Tari> I don't remember
00:26 <+Tari> if I tested whether it's possible to ex (sp), ix
00:27 <+Tari> wow
00:28 <+Tari> looking at some LIFOS code
00:28 <+Tari> which I might work on some tonight
00:28 <+Tari> kernel/src/asm/math/4func.asm:line 86
00:28 <+Tari> 	daa		;how does it determine what to do?  Flags?  No, z80 magic. ;)
00:29 <+DrDnar> Is that a BCD instruction?
00:29 <+Tari> yeah
00:29 <+Tari> decimal adjust for addition
00:29 <+DrDnar> Magic.
00:30 < BrandonW> DrDnar, I recommend taking a look at the IOHook code and extracting the code that patches the OS' check for sector 30h/70h, change the FindSwapSector BCALL jump table entry to point to 30/70:4000h, and...
00:30 < BrandonW> Put code there that either returns a RAM page or swap sector.
00:31 < BrandonW> I'm VPN'ing from elsewhere, so my responses may be delayed.
00:31 <+DrDnar> I was just going to write a program that duplicates the garbage collection functionality.
00:31 < BrandonW> That is insane.
00:31 < BrandonW> It
00:31 < BrandonW> It's more involved than it might appear.
00:32 <+DrDnar> Copy the sector to swap, erase sector, find free space for each item, copy and repeat.
00:32 <+Tari> daa is just so awesome- add two bcd numbers, do a daa, and you get the correct bcd result :)
00:33 < BrandonW> If you won't take my word for it, go for it.
00:33 <+DrDnar> Hacking the OS is more up your alley. I'll give it a try though.
00:35 < BrandonW> It might not work. A good garbage collection routine would be nice to have.
00:37 < BrandonW> In fact, it won't work. Any writes to it involve the boot code and it always ANDs with 1Fh/3Fh/7Fh.
00:39 <+DrDnar> Do we have a linker for ZDS .hex files?
00:40 <+Tari> to what?
00:40 <+Tari> 8xk, or 8xp?
00:40 <+DrDnar> Make a .8xp out of .hex.
00:41 <+Tari> certainly devpac8x
00:41 <+Tari> maybe Wabbitsign, I'm not sure about that
00:43 <+DrDnar> devpac8x only accepts .bins
00:43 <+Tari> ah
00:43 <+Tari> that's one thing we seem to be missing
00:43 <+Tari> a good modern linker
00:43 <+Tari> maybe I should write one...
00:45 <+DrDnar> Looks like Wabbitsign does accept .hexs
00:48 <+Tari> does it generate 8xp?  (I've never used it, really)
00:48 <+DrDnar> yeah
00:49 <+DrDnar> And---I checked with a hex editor---it does indeed translate the hex into binary
00:49 <+Tari> coo
00:50 <+Tari> I still want to write a linker, tho...
00:54 < BrandonW> You could have used a free tool to convert the Intel Hex to a BIN file.
00:54 <+DrDnar> Wabbit is free enough.
00:55 < BrandonW> Good luck with the project.
01:04 <+DrDnar> What is this "certificate list" in the SDK?
01:05 <+DrDnar> in the Flash ROM structure.
01:07 <+DrDnar> Also, the OS doesn't case WHICH sector is marked as swap, so long as one is, right?
01:12 <+DrDnar> 15h is the last page on the BE, and 69 is the last page on the SEs. What's the last page on the 84BE? 28?
01:13 <+DrDnar> 3F?
01:27 <+DrDnar> While I'm asking nobody in particular questions, what does' Illegal relocatable expression operation' mean?
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04:23 < BrandonW> I have no idea on the last question.
04:23 < BrandonW> The last page on the 84+ is 29h.
04:26 < BrandonW> It doesn't care what the swap sector is, but I don't think it's ever anything but 08h or 0Ch.
04:26 < BrandonW> Disassemble FindSwapSector, because whatever it does is what the OS does.
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--- Log closed Thu Dec 04 00:00:47 2008