[A83] Re: What the heck is RST???
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[A83] Re: What the heck is RST???
As Dan said, just be sure to load the port back in, and you might also want
to disable interrupts. You may want to do:
ld a,h
add a,$40
ld h,a
As that is 1 tstate faster ;) Note that permanently changes H, so you would
only do that once per pointer.
-----Original Message-----
From: assembly-83-bounce@lists.ticalc.org
[mailto:assembly-83-bounce@lists.ticalc.org]On Behalf Of Hyperbyte
Sent: Saturday, July 07, 2001 2:27 PM
To: assembly-83@lists.ticalc.org
Subject: [A83] Re: What the heck is RST???
Are there any implications to doin so?
Since 8000h+ is normally used by flags and so, I assume they can't be used
directly.
Also, how do I get the ram page back.
(I assume "in a,(07h)"
is this correct to modify the pointers read from the VAT:
hl contains the location in the 4000h range...
res 6,h
set 7,h
ld a,(hl)
...
It would be a whole lot faster than ld[a|c]indpaged'ing
--Peter-Martijn
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