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- {
- Display.i for PCQ Pascal
-
- include define file for display control registers
- }
-
- const
-
- { bplcon0 defines }
-
- MODE_640 = $8000;
- PLNCNTMSK = $7; { how many bit planes? }
- { 0 = none, 1->6 = 1->6, 7 = reserved }
- PLNCNTSHFT = 12; { bits to shift for bplcon0 }
- PF2PRI = $40; { bplcon2 bit }
- COLORON = $0200; { disable color burst }
- DBLPF = $400;
- HOLDNMODIFY = $800;
- INTERLACE = 4; { interlace mode for 400 }
-
- { bplcon1 defines }
-
- PFA_FINE_SCROLL = $F;
- PFB_FINE_SCROLL_SHIFT = 4;
- PF_FINE_SCROLL_MASK = $F;
-
- { display window start and stop defines }
-
- DIW_HORIZ_POS = $7F; { horizontal start/stop }
- DIW_VRTCL_POS = $1FF; { vertical start/stop }
- DIW_VRTCL_POS_SHIFT = $7;
-
- { Data fetch start/stop horizontal position }
-
- DFTCH_MASK = $FF;
-
- { vposr bits }
-
- VPOSRLOF = $8000;
-
-