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Display.i
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1990-08-28
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848b
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41 lines
{
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;