41 lines
1.0 KiB
OpenEdge ABL
41 lines
1.0 KiB
OpenEdge ABL
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IFND GRAPHICS_DISPLAY_I
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GRAPHICS_DISPLAY_I SET 1
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**
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** $Filename: graphics/display.i $
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** $Release: 1.3 $
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**
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** include define file for display control registers
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**
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** (C) Copyright 1985,1986,1987,1988 Commodore-Amiga, Inc.
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** All Rights Reserved
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**
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* bplcon0 defines
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MODE_640 equ $8000
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PLNCNTMSK equ $7 * how many bit planes?
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* * 0 = none, 1->6 = 1->6, 7 = reserved
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PLNCNTSHFT equ 12 * bits to shift for bplcon0
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PF2PRI equ $40 * bplcon2 bit
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COLORON equ $0200 * disable color burst
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DBLPF equ $400
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HOLDNMODIFY equ $800
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INTERLACE equ 4 * interlace mode for 400
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* bplcon1 defines
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PFA_FINE_SCROLL equ $F
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PFB_FINE_SCROLL_SHIFT equ 4
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PF_FINE_SCROLL_MASK equ $F
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* display window start and stop defines
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DIW_HORIZ_POS equ $7F * horizontal start/stop
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DIW_VRTCL_POS equ $1FF * vertical start/stop
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DIW_VRTCL_POS_SHIFT equ 7
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* Data fetch start/stop horizontal position
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DFTCH_MASK equ $FF
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* vposr bits
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VPOSRLOF equ $8000
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ENDC ; GRAPHICS_DISPLAY_I
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