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darkstone knight
Advanced Member
Joined: 07 Sep 2008
Posts: 438
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 Posted: 06 Nov 2008 03:48:05 pm Post subject: |
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this is ionfastcopy:
Code:
fastCopy:
di
ld a,$80
out ($10),a
ld hl,gbuf-12-(-(12*64)+1)
ld a,$20
ld c,a
inc hl ;filler
dec hl ;filler
fastCopyAgain:
ld b,64
inc c
ld de,-(12*64)+1
out ($10),a
add hl,de
ld de,10
fastCopyLoop:
add hl,de
inc hl ;filler
inc hl ;filler
inc de ;filler
ld a,(hl)
out ($11),a
dec de ;filler
djnz fastCopyLoop
ld a,c
cp $2B+1
jr nz,fastCopyAgain
ret
as you can see, there are alot of filler insctructions
however, i noticed that, on wabbitemu, the screen is updated correctly
even whitout any filler instruction
wabbitemu has bugs?  |
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calc84maniac
Elite
Joined: 22 Jan 2007
Posts: 770
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| Posted: 06 Nov 2008 04:03:52 pm Post subject: |
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| Actually, Wabbit can't accurately emulate the LCD driver delay because it's different on most calculators. |
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darkstone knight
Advanced Member
Joined: 07 Sep 2008
Posts: 438
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| Posted: 06 Nov 2008 05:12:43 pm Post subject: |
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a, that sucks
still wondering why TI but the worst possible driver in their calucators...
now that i think of it: the nspire's graph screen is faster?  |
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Spencer
Advanced Newbie
Joined: 06 Nov 2005
Posts: 99
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| Posted: 06 Nov 2008 05:16:33 pm Post subject: |
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| I left it off the LCD emulation for now. Some people might find it useful to set a minimum "cooldown" time, so that might be included in future versions. |
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