From: Richard Atkinson (rga24_at_cantab.net)
Date: 2005-04-13 02:09:02
On Wed, 13 Apr 2005, [ISO-8859-2] Grósz Attila wrote: > $FD20 is the speech command register on the C364 :-) So you indeed > had to ask him (her? ;-) ) twice. > > I wonder if the MV has this too? > A similar thing happens in the Magic Voice ROM a lot. $DF81 is 6525 Port Register B, and it is frequently loaded with 4 bits in D0-D3 for the T6721A, with D4 low (PB4 is connected to T6721A WR#), then there is an ORA #$10 command and then the register is loaded again. This generates a positive edge on the T6721A WR# line for the chip to read in the data. Richard Message was sent through the cbm-hackers mailing list
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