RE: Data Becker CBM-8000 hi-res graphics

From: Baltissen, GJPAA (Ruud) <>
Date: Tue, 5 Sep 2017 11:05:00 +0000
Message-ID: <>
Hallo Christian,

> The DB-Eprom-code looks like it's possible to access the screen routines with basic variables  and sys-commands ???

I completely forgot to mention this:

.eq P_BB24		= $BB24
.eq P_C92D		= $C92D
.eq P_C99D		= $C99D
.eq P_CB5E		= $CB5E
.eq P_CCD8		= $CCD8
.eq P_CD0D		= $CD0D
.eq P_CD61		= $CD61
.eq P_CD8E		= $CD8E
.eq P_CD91		= $CD91
.eq P_CF83		= $CF83
.eq P_D534		= $D534
.eq P_E015		= $E015
.eq P_E018		= $E018
.eq P_E01B		= $E01B
.eq P_F0D5		= $F0D5
.eq P_F143		= $F143
.eq P_F1D9		= $F1D9
.eq P_F2E0		= $F2E0
.eq P_F563		= $F563
.eq OpenChan4Outp	= $FFC9
.eq CloseIoChannls	= $FFCC
.eq GetCharInpDev	= $FFE4

You see, enough procedures that have to be given a name yet. That's why the commented disassembly of the 8032 is needed first: knowing what these subroutines do will shed a lot of light on the DB ROM routines using these subroutines.

Met vriendelijke groet / With kind regards, Ruud Baltissen

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Received on 2017-09-05 12:00:03

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