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idvga.pas
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Pascal/Delphi Source File
|
1994-01-18
|
47KB
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1,957 lines
(* Analyse the current mode *)
procedure AnalyseMode; {(mode:word;var pixs,lins,bytes,vseg:word;var mmode:mmods);}
procedure dumprg(base,start,ende:word;var rg:regblk);
var six,ix:word;
same:boolean;
begin
rg.base:=base;
six:=inp(base);
outp(base,0);
ix:=inp(base) xor 255;
outp(base,255);
ix:=ix and inp(base);
if ende=0 then
if ix>127 then ende:=255
else if ix>63 then ende:=127
else if ix>31 then ende:=63
else if ix>15 then ende:=31
else if ix>7 then ende:=15
else ende:=7;
for ix:=start to ende do
rg.x[ix]:=rdinx(base,ix);
rg.nbr:=ende;
outp(base,six);
same:=true;
while (rg.nbr>7) and same do {Check for doubles}
begin
six:=succ(rg.nbr) div 2;
for ix:=0 to six-1 do
if rg.x[ix]<>rg.x[ix+six] then same:=false;
if same then rg.nbr:=rg.nbr div 2;
end;
end;
procedure DumpTridOldRegs;
begin
wrinx(SEQ,$B,0);
rgs.tridold0d:=rdinx(SEQ,$D);
rgs.tridold0e:=rdinx(SEQ,$E);
oldreg:=true;
end;
procedure DumpXGAregs;
var x:word;
begin
dumprg(IOadr+10,0,0,rgs.xxregs);
for x:=0 to 15 do
rgs.xgaregs[x]:=inp(IOadr+x);
end;
const
tridclk:array[0..15] of real=(25.175,28.322,44.9,36,57.272,65,50.35,40
,88,98,118.89,108,72,77,80,75);
triddiv:array[0..3] of real=(1,2,4,1.5);
HMCclk:array[0..7] of real=(25.175,28.322,0,37.2,40,44.9,0,65);
v7clk:array[0..7] of real=(25.175,28.322,30,32.514,34,36,38,40);
aticlk1:array[0..7] of real=(50.175,56.644,0,44.9,44.9,50.157,0,36);
aticlk2:array[0..15] of real=(42.954,48.771,16.657,36,50.35,56.64
,28.322,44.9,30.24,32,37.5,39,40,56.644,75,65);
atidiv:array[0..3] of integer=(1,2,3,4);
WDclk:array[0..7] of real=(40,50,0,44.9,25.175,28.322,65,36.242);
var x,m,wid,wordadr,pixwid,clksel:word;
force256,graph:boolean;
vtot:word;
begin
case chip of (* Enable ext *)
__S3:begin
wrinx(crtc,$38,$48);
wrinx(crtc,$39,$A5);
end;
end;
fillchar(rgs,sizeof(rgs),0);
oldreg:=false;
vclk:=0;
for x:=$3C2 to $3DF do rgs.stdregs[x]:=inp(x);
rgs.stdregs[$3DA]:=inp(CRTC+6);
rgs.stdregs[$3C0]:=inp($3C0);
for x:=0 to 31 do rgs.attregs[x]:=rdinx($3C0,x);
x:=rdinx($3C0,$30);
rgs.mode:=curmode;
dumprg(CRTC,0,0,rgs.crtcregs);
dumprg(SEQ,0,0,rgs.seqregs);
dumprg(GRC,0,0,rgs.grcregs);
case chip of
__ati1,__ati2,__atiGUP:
dumprg(IOadr,$A0,$BF,rgs.xxregs);
__chips451,__chips452,__chips453:
dumprg(IOadr,0,0,rgs.xxregs);
__compaq:begin
for x:=1 to 15 do
for m:=0 to 15 do
rgs.xxregs.x[(x-1)*16+m]:=inp(x*$1000+$3C0+m);
rgs.xxregs.base:=$3C;
rgs.xxregs.nbr:=240;
end;
__ET4W32:dumprg($217A,0,0,rgs.xxregs);
__hmc:dumprg(SEQ,$0,$FF,rgs.xxregs);
__oak87,
__oak:dumprg($3DE,0,0,rgs.xxregs);
__trid89,__tridBR,__tridCS:
DumpTridOldRegs;
__iitagx:if (inp(IOadr) and 4)=0 then DumpTridOldRegs
else DumpXGAregs;
__xga:DumpXGAregs;
else rgs.xxregs.base:=0;
end;
case chip of (* Disable ext *)
__S3:begin
wrinx(crtc,$38,0);
wrinx(crtc,$39,$5A);
end;
end;
m:=rgs.grcregs.x[6];
case (m shr 2) and 3 of
0,1:calcvseg:=$a000;
2:calcvseg:=$b000;
3:calcvseg:=$b800;
end;
clksel:=(rgs.stdregs[$3CC] shr 2) and 3;
begin
ilace:=false;
extpixfact:=1;
extlinfact:=1;
calclines:=rgs.crtcregs.x[$12]+1;
x:=rgs.crtcregs.x[7];
if (x and 2)<>0 then inc(calclines,256);
if (x and 64)<>0 then inc(calclines,512);
pixwid:=8;
calcpixels:=rgs.crtcregs.x[1]+1;
force256:=false;
vtot:=rgs.crtcregs.x[0]+5;
graph:=(rgs.attregs[$10] and 1)>0;
if graph then
begin
extlinfact:=(rgs.crtcregs.x[9] and $1F)+1;
if (rgs.crtcregs.x[9] and $80)>0 then extlinfact:=extlinfact*2;
end
else begin
if (rgs.attregs[$10] and 4)>0 then charwid:=9 else charwid:=8;
charhigh:=(rgs.crtcregs.x[9] and $1f)+1;
end;
wid:=rgs.crtcregs.x[$13];
wordadr:=2;
if (rgs.crtcregs.x[$14] and 64)<>0 then wordadr:=8
else if (rgs.crtcregs.x[$17] and 64)=0 then wordadr:=4;
case chip of
__aheada,__aheadb:
begin
if (rgs.grcregs.x[$1c] and 12)=12 then ilace:=true;
if (rgs.seqregs.x[4] and 8)<>0 then wordadr:=16;
end;
__ati1:begin
if (rgs.xxregs.x[$B2] and 1)<>0 then ilace:=true;
if (rgs.xxregs.x[$B2] and 64)>0 then inc(clksel,4);
if (rgs.xxregs.x[$B0] and $20)>0 then
begin
force256:=true;
wordadr:=8;
end;
vclk:=aticlk1[clksel]/atidiv[rgs.xxregs.x[$B8] shr 6];
end;
__atiGUP,
__ati2:begin
if (rgs.xxregs.x[$BE] and 2)<>0 then ilace:=true;
if (rgs.xxregs.x[$B0] and $20)>0 then
begin
force256:=true;
wordadr:=16;
end;
if version=ATI_18800_1 then
begin
if (rgs.xxregs.x[$BE] and 16)>0 then inc(clksel,4);
vclk:=aticlk1[clksel];
end
else begin
if (rgs.xxregs.x[$B9] and 2)>0 then inc(clksel,4);
if (rgs.xxregs.x[$BE] and 16)>0 then inc(clksel,8);
vclk:=aticlk2[clksel];
end;
vclk:=vclk/atidiv[rgs.xxregs.x[$B8] shr 6];
end;
__al2101:begin
if ((rgs.grcregs.x[$C] and $10)<>0) then wordadr:=wordadr shl 1;
if (rgs.crtcregs.x[$19] and 1)<>0 then
begin
ilace:=true;
wordadr:=wordadr shr 1;
end;
end;
__chips451,__chips453,
__chips452:begin
if (rgs.xxregs.x[$D] and 1)<>0 then inc(wid,256);
if (rgs.seqregs.x[4] and 8)<>0 then
begin
wordadr:=8;
calcpixels:=calcpixels shr 1;
end;
end;
__cir54:begin
if (rgs.seqregs.x[4] and 8)<>0 then wordadr:=8;
if (rgs.crtcregs.x[$1B] and 16)<>0 then inc(wid,256);
if (rgs.crtcregs.x[$1A] and 1)<>0 then ilace:=true;
vclk:=(14.31818*rgs.seqregs.x[$B+clksel])/(rgs.seqregs.x[$1B+clksel] shr 1);
if (rgs.seqregs.x[$1B+clksel] and 1)>0 then vclk:=vclk/2;
case (rgs.seqregs.x[7] and 6) of
2:vclk:=vclk/2;
4:vclk:=vclk/3;
end;
end;
__cir64:begin
if (rgs.seqregs.x[4] and 8)<>0 then wordadr:=8;
if (rgs.grcregs.x[$82] and 7)=2 then pixwid:=4;
end;
__compaq:begin
if (rgs.grcregs.x[$F] and $F0)=0 then wordadr:=8;
if (rgs.grcregs.x[$42] and 1)>0 then inc(wid,256);
if (rgs.crtcregs.x[$14] and 64)>0 then pixwid:=4;
end;
__ET3000:begin
if (rgs.crtcregs.x[$25] and $80)>0 then ilace:=true;
if (rgs.grcregs.x[5] and $40)>0 then wordadr:=16;
if (rgs.seqregs.x[7] and $40)>0 then
begin
pixwid:=pixwid*2;
wordadr:=wordadr*2;
end;
end;
__ET4w32,
__ET4000:if (rgs.crtcregs.x[$3f] and 128)<>0 then inc(wid,256);
__genoa:if (rgs.crtcregs.x[$2F] and 1)<>0 then ilace:=true;
__hmc:begin
IF (rgs.xxregs.x[$E7] and 1)>0 then ilace:=true;
if (rgs.xxregs.x[$E7] and 2)>0 then force256:=true;
if (rgs.xxregs.x[$E7] and 64)>0 then inc(clksel,4);
vclk:=HMCclk[clksel];
end;
__iitagx:if (inp(IOadr) and 4)=0 then
begin
if (rgs.tridold0d and 16)<>0 then wordadr:=wordadr*2;
if (rgs.seqregs.x[4] and 8)>0 then pixwid:=4;
end
else begin
calcpixels:=rgs.xxregs.x[$13]*256+rgs.xxregs.x[$12]+1;
pixwid:=8;
calclines :=rgs.xxregs.x[$23]*256+rgs.xxregs.x[$22]+1;
wid :=rgs.xxregs.x[$44]*256+rgs.xxregs.x[$43];
wordadr:=8;
end;
__mxic:if (rgs.seqregs.x[$F0] and 3)=3 then ilace:=true;
__NCR:begin
if (rgs.seqregs.x[$20] and 2)<>0 then
begin
force256:=true;
wordadr:=8;
end;
if (rgs.seqregs.x[$1F] and $10)<>0 then
case rgs.seqregs.x[$1F] and 15 of
0:pixwid:=4;
11:pixwid:=16;
else pixwid:=(rgs.seqregs.x[$1F] and 15)+6;
end;
if (rgs.crtcregs.x[$30] and 2)<>0 then inc(calcpixels,256);
if (rgs.crtcregs.x[$30] and $10)<>0 then
begin
ilace:=true;
extlinfact:=1;
end;
end;
__oak:begin
if (rgs.xxregs.x[$14] and 128)<>0 then ilace:=true;
if (rgs.seqregs.x[4] and 8)<>0 then wordadr:=16;
{Cheat for 256 color mode}
end;
__oak87:begin
if (rgs.xxregs.x[$14] and 128)<>0 then ilace:=true;
if (rgs.seqregs.x[4] and 8)<>0 then
if (rgs.xxregs.x[$21] and 4)>0 then wordadr:=16
else pixwid:=4;
end;
__p2000:begin
if (rgs.grcregs.x[$13] and 64)<>0 then
begin
wordadr:=wordadr shr 1;
ilace:=true;
end;
if (rgs.grcregs.x[$21] and 32)<>0 then inc(wid,256);
end;
__paradise:begin
if (version>=WD_90c00) and ((rgs.crtcregs.x[$2D] and $20)<>0) then ilace:=true;
if (rgs.seqregs.x[4] and 8)<>0 then wordadr:=8;
{Cheat for 256 color mode}
if (rgs.grcregs.x[$C] and 2)>0 then inc(clksel,4);
vclk:=WDclk[clksel];
if (version>=WD_90c33) and ((rgs.crtcregs.x[$3E] and $20)>0) then inc(vtot,256);
end;
__realtek:begin
if (rgs.seqregs.x[4] and 8)<>0 then pixwid:=4;
if (rgs.grcregs.x[$C] and $10)<>0 then
begin
pixwid:=pixwid*2;
wid:=wid*2;
end;
if (rgs.crtcregs.x[$19] and 1)<>0 then
begin
ilace:=true;
wid:=wid div 2;
end;
end;
__s3:begin
if (rgs.crtcregs.x[$42] and $20)<>0 then ilace:=true;
if (rgs.crtcregs.x[$43] and 4)<>0 then inc(wid,256);
if (rgs.crtcregs.x[$43] and 128)<>0 then pixwid:=pixwid*2;
if (rgs.seqregs.x[4] and 8)<>0 then wordadr:=8 else wordadr:=2;
if (rgs.attregs[$10] and 1)=0 then wid:=wid*2;
end;
__tridCS,
__trid89:begin
if (rgs.tridold0d and 16)<>0 then wordadr:=wordadr*2
else if (rgs.seqregs.x[4] and 8)>0 then pixwid:=pixwid div 2;
if (rgs.crtcregs.x[$1e] and 4)<>0 then
begin
ilace:=true;
wordadr:=wordadr div 2;
end;
if (rgs.tridold0E and $10)>0 then inc(clksel,8)
else if (rgs.seqregs.x[$D] and 1)>0 then inc(clksel,4);
vclk:=tridclk[clksel]/triddiv[(rgs.seqregs.x[$D] shr 1) and 3];
end;
__UMC:begin
if (rgs.crtcregs.x[$2F] and 1)>0 then
begin
ilace:=true;
wordadr:=wordadr div 2;
end;
if (rgs.crtcregs.x[$33] and $10)>0 then wordadr:=16;
end;
__video7:begin
if (rgs.seqregs.x[$E0] and $10)<>0 then ilace:=true;
vclk:=v7clk[(rdinx(SEQ,$A4) shr 2) and 7];
end;
__xbe,
__xga:begin
calcpixels:=rgs.xxregs.x[$13]*256+rgs.xxregs.x[$12]+1;
pixwid:=8;
calclines:=rgs.xxregs.x[$23]*256+rgs.xxregs.x[$22]+1;
wid :=rgs.xxregs.x[$44]*256+rgs.xxregs.x[$43];
wordadr:=8;
end;
end;
if ilace then calclines:=calclines*2;
if (rgs.attregs[$10] and 1)=0 then {Text}
begin
calclines:=calclines div ((rgs.crtcregs.x[9] and $1F)+1);
if (rgs.attregs[$10] and 2)=0 then calcmmode:=_TEXT
else calcmmode:=_TEXT4;
pixwid:=charwid;
end
else begin
if (rgs.crtcregs.x[$17] and 1)=0 then {CGA}
begin
if (rgs.crtcregs.x[$17] and $40)>0 then calcmmode:=_cga1
else calcmmode:=_cga2;
extlinfact:=extlinfact shr 1;
end
else if ((rgs.attregs[$10] and 64)=0) and ((rgs.grcregs.x[5] and 64)=0)
and not force256 then {16 color}
begin
if {((rgs.crtcregs.x[$17] and $20)=0)
or} ((rgs.attregs[$10] and 2)>0) then calcmmode:=_pl1
else if (rgs.attregs[$12]=5) then
begin
calcmmode:=_pl2;
pixwid:=pixwid*2;
end
else if (rgs.seqregs.x[4] and 8)>0 then calcmmode:=_pk4
else calcmmode:=_pl4;
end
else begin
calcmmode:=_p8;
if dactype>_dac8 then
begin
x:=getdaccomm;
case dactype of
_dac15:if x>127 then calcmmode:=_p15;
_dac16:case (x and $c0) of
$80:calcmmode:=_p15;
$c0:calcmmode:=_p16;
end;
_dacss24:begin
(* while x<>$8e do x:=inp($3C6); *)
x:=inp($3C6);
rgs.stdregs[$3c1]:=x;
case x of
$a6:calcmmode:=_p16;
$A0:calcmmode:=_p15;
$9E:calcmmode:=_p24;
end;
end;
_dacatt:case (x and $E0) of
$80,$A0:calcmmode:=_p15;
$C0:calcmmode:=_p16;
$E0:calcmmode:=_p24;
end;
_dacadac1:case (x and $C7) of
$C1:calcmmode:=_p16;
$C5:calcmmode:=_p24;
$80:calcmmode:=_p15;
end;
_dacSC24:case (x and $E0) of
$80,$A0:calcmmode:=_p15;
$C0,$E0:calcmmode:=_p16;
$60:calcmmode:=_p24;
end;
_dacCL24:case x of
$F0:calcmmode:=_p15;
$E1:calcmmode:=_p16;
$E5:calcmmode:=_p24;
end;
_dacmus:case (x and $e0) of
$a0:calcmmode:=_p15;
$c0:calcmmode:=_p16;
$e0:calcmmode:=_p24;
end;
_dacalg:if (rgs.crtcregs.x[$19] and 16)<>0 then calcmmode:=_p16;
_dacBt484:case inp($3C8+DAC_RS3) and $78 of
$10:calcmmode:=_p32;
$30:calcmmode:=_p15;
$38:calcmmode:=_p16;
end;
end;
if (dactype<>_dacCL24) and (dactype<>_dacBt484) then
case calcmmode of {Adjust for HiColor}
_p15,_p16:calcpixels:=calcpixels div 2;
_p24:calcpixels:=calcpixels div 3;
end;
end;
end;
calcpixels:=calcpixels*pixwid;
end;
calcbytes:=wid*wordadr;
end;
if (rgs.seqregs.x[1] and 8)>0 then vclk:=vclk/2;
if vclk>0 then
begin
hclk:=(vclk*1000)/(vtot*pixwid);
x:=rgs.crtcregs.x[6]+2;
if (rgs.crtcregs.x[7] and 1)>0 then inc(x,256);
if (rgs.crtcregs.x[7] and $20)>0 then inc(x,512);
fclk:=hclk*1000/x;
end;
if extlinfact>0 then calclines:=calclines div extlinfact;
rgs.bytes :=calcbytes;
rgs.pixels:=calcpixels;
rgs.lins :=calclines;
rgs.mmode :=calcmmode;
rgs.chip :=chip;
end;
procedure wrregs(var rg:regblk);
var x:word;
begin
write(hex4(rg.base)+':');
for x:=0 to rg.nbr do
begin
if (x mod 25=0) and (x>0) then
write('('+hex2(x)+'):');
write(' '+hex2(rg.x[x]));
end;
writeln;
end;
function dumpVGAregs:word;
var x:word;
begin
textmode($103); {Set 43/50 line text mode}
writeln('Mode: '+hex2(rgs.mode)+'h Pixels: '+istr(rgs.pixels)+' lines: '+istr(rgs.lins)
+' bytes: '+istr(rgs.bytes)+' colors: '+istr(modecols[rgs.mmode]));
writeln;
if oldreg then writeln('SEQ (OLD): 0Dh: ',hex2(rgs.tridold0d)
,' 0Eh: ',hex2(rgs.tridold0e));
for x:=$3C0 to $3CF do write(' '+hex2(rgs.stdregs[x]));
writeln;
for x:=$3D0 to $3DF do write(' '+hex2(rgs.stdregs[x]));
writeln;
write('03C0:');
for x:=0 to 31 do
begin
if x=25 then write('(19):');
write(' '+hex2(rgs.attregs[x]));
end;
writeln;
wrregs(rgs.seqregs);
wrregs(rgs.grcregs);
wrregs(rgs.crtcregs);
if rgs.xxregs.base<>0 then
begin
if (rgs.xxregs.base and $ff8f)=$210A then
begin
write(hex4(rgs.xxregs.base and $fff0)+':');
for x:=0 to 15 do write(' '+hex2(rgs.xgaregs[x]));
writeln;
end;
wrregs(rgs.xxregs);
end;
writeln;
dumpVGAregs:=getkey;
end;
function FormatRgs(var b:byte):word; {Format registers for dump}
type
barr=array[1..2000] of byte;
var
blk:^barr;
bts,x:word;
procedure appb(b:byte);
begin
inc(bts);
blk^[bts]:=b;
end;
procedure appw(w:word);
begin
appb(lo(w));
appb(hi(w));
end;
procedure apprgs(var r:regblk);
var x:word;
begin
appw(1);
appw(r.base);
appb(0);
appb(r.nbr);
for x:=0 to r.nbr do appb(r.x[x]);
end;
begin
blk:=@b;
bts:=0;
appw(1);
appw($3C0);
appb(0);
appb(31);
for x:=0 to 31 do appb(rgs.attregs[x]);
apprgs(rgs.seqregs);
apprgs(rgs.grcregs);
apprgs(rgs.crtcregs);
if rgs.xxregs.base<>0 then apprgs(rgs.xxregs);
if oldreg then
begin
appw($FF);
appw(0);
appb(rgs.tridold0d);
appw($FF);
appw(1);
appb(rgs.tridold0e);
end;
if (rgs.xxregs.base and $FF8F)=$210A then
begin
appw(16);
appw(rgs.xxregs.base-$A);
for x:=0 to 15 do appb(rgs.xgaregs[x]);
end;
appw($3C2);
appb(rgs.stdregs[$3C2]);
appw(8);
appw($3C6);
for x:=$3C6 to $3CD do appb(rgs.stdregs[x]);
appw(8);
appw(crtc+4);
for x:=$3D8 to $3DF do appb(rgs.stdregs[x]);
appw(0);
FormatRgs:=bts;
end;
procedure dumpVGAregfile;
var
f:file of regtype;
begin
assign(f,'register.vga');
{$i-}
reset(f);
{$i+}
if ioresult=0 then seek(f,filesize(f)) else rewrite(f);
write(f,rgs);
close(f);
end;
(* Tests for various adapters *)
procedure _ahead;
var old:word;
begin
old:=rdinx(GRC,$F);
wrinx(GRC,$F,0);
if not testinx2(GRC,$C,$FB) then
begin
wrinx(GRC,$F,$20);
if testinx2(GRC,$C,$FB) then
begin
case rdinx(GRC,$F) and 15 of
0:begin
Version:=AH_A;
chip:=__aheadA;
end;
1:begin
Version:=AH_B;
chip:=__aheadB;
features:=ft_rwbank;
end;
end;
case rdinx(GRC,$1F) and 3 of
0:mm:=256;
1:mm:=512;
2:;
3:mm:=1024;
end;
addvideo;
end;
end;
wrinx(GRC,$F,old);
end;
procedure _al2101;
begin
old:=rdinx(crtc,$1A);
clrinx(crtc,$1A,$10);
if not testinx(crtc,$19) then
begin
setinx(crtc,$1A,$10);
if testinx(crtc,$19) and testinx2(crtc,$1A,$3F) then
begin
Version:=AL_2101;
chip:=__al2101;
features:=ft_rwbank+ft_blit+ft_cursor+ft_line;
case rdinx(crtc,$1e) and 3 of
0:mm:=256;
1:mm:=512;
2:mm:=1024;
3:mm:=2048;
end;
SetDAC(_dacalg,'ALG1101');
addvideo;
end;
end;
wrinx(crtc,$1A,old);
end;
procedure _ati;
var w:word;
begin
if getbios($31,9)='761295520' then
begin
case memw[biosseg:$40] of
$3133:begin
IOadr:=memw[biosseg:$10];
w:=rdinx(IOadr,$BB);
case w and 15 of
0:_crt:='EGA';
1:_crt:='Analog Monochrome';
2:_crt:='Monochrome';
3:_crt:='Analog Color';
4:_crt:='CGA';
6:_crt:='';
7:_crt:='IBM 8514/A';
else _crt:='Multisync';
end;
chip:=__ati2;
SubVers:=mem[biosseg:$43];
case SubVers of
$31:begin
Version:=ATI_18800;
chip:=__ati1;
end;
$32:Version:=ATI_18800_1;
$33:Version:=ATI_28800_2;
$34:Version:=ATI_28800_4;
$35:Version:=ATI_28800_5;
$61:begin
chip:=__atiGUP;
SubVers:=inpw($FAEE);
case SubVers and $3FF of
$2F7:Version:=ATI_GUP_6;
$177:Version:=ATI_GUP_LX;
$017:Version:=ATI_GUP_AX;
0:Version:=ATI_GUP_3;
end;
SetDAC(_daccl24,'ATI Bogus DAC');
end;
else Version:=ATI_Unknown;
end;
if Version>=ATI_18800_1 then features:=ft_rwbank;
case Version of
ATI_18800,ATI_18800_1:
if (rdinx(IOadr,$bb) and 32)<>0 then mm:=512;
ATI_28800_2:if (rdinx(IOadr,$b0) and 16)<>0 then mm:=512;
ATI_28800_4,ATI_28800_5:
case rdinx(IOadr,$b0) and $18 of
0:mm:=256;
$10:mm:=512;
8,$18:mm:=1024;
end;
ATI_GUP_3..ATI_GUP_LX:
case inp($36EE) and $C of
0:mm:=512;
4:mm:=1024;
8:mm:=2048;
12:mm:=4096;
end;
end;
end;
$3233:begin
Version:=ATI_EGA;
video:='EGA';
chip:=__ega;
end;
end;
addvideo;
end;
end;
procedure _chipstech;
var prt,old,x:word;
begin
prt:=$46E8; {Should be $94 for MCA systems}
old:=inp(prt); {This can cause problems for non-CT chips,
as their 46E8h port may be updated incorrectly}
outp(prt,$E);
if inp($104)<>$A5 then
begin
outp(prt,$1E);
if inp($104)=$A5 then
begin
x:=inp($103);
outp($103,x or $80); {Enable extensions}
outp(prt,$E);
if (x and $40)=0 then IOadr:=$3D6 else IOadr:=$3B6;
SubVers:=rdinx(IOadr,0);
case SubVers shr 4 of
0:Version:=CT_451;
1:Version:=CT_452;
2:Version:=CT_455;
3:Version:=CT_453;
4:Version:=CT_450;
5:Version:=CT_456;
6:Version:=CT_457;
7:Version:=CT_65520;
8:Version:=CT_65530;
9:Version:=CT_65510;
else Version:=CT_Unknown;
end;
case Version of
CT_452:begin
CHIP:=__chips452;
features:=ft_cursor;
end;
CT_450,
CT_453:CHIP:=__chips453;
else chip:=__chips451;
end;
case rdinx(IOadr,4) and 3 of
1:mm:=512;
2,3:mm:=1024;
end;
addvideo;
end;
end;
end;
procedure _cirrus;
var old,old6:word;
begin
old6:=rdinx(SEQ,6);
old:=rdinx(crtc,$C);
outp(crtc+1,0);
SubVers:=rdinx(crtc,$1F);
wrinx(SEQ,6,lo(Subvers shr 4) or lo(Subvers shl 4));
{The SubVers value is rotated by 4}
if inp(SEQ+1)=0 then
begin
outp($3c5,SubVers);
if inp($3c5)=1 then
begin
case SubVers of
$EC:Version:=CL_GD5x0;
$CA:Version:=CL_GD6x0;
$EA:Version:=CL_V7_OEM;
else Version:=CL_old_unk;
end;
chip:=__cirrus;
addvideo;
end;
end;
wrinx(crtc,$C,old);
wrinx(SEQ,6,old6);
end;
procedure _cirrus54;
var x,old:word;
begin
old:=rdinx(SEQ,6);
wrinx(SEQ,6,0);
if (rdinx(SEQ,6)=$F) then
begin
wrinx(SEQ,6,$12);
if (rdinx(SEQ,6)=$12) and testinx2(SEQ,$1E,$3F) {and testinx2(crtc,$1B,$ff)} then
begin
case rdinx(SEQ,$A) and $18 of {memory}
0:mm:=256;
8:mm:=512;
16:mm:=1024;
24:mm:=2048;
end;
SubVers:=rdinx(crtc,$27);
if testinx(GRC,9) then
begin
case SubVers of
$18:Version:=CL_AVGA2;
$88:Version:=CL_GD5402;
$89:Version:=CL_GD5402r1;
$8A:Version:=CL_GD5420;
$8B:Version:=CL_GD5420r1;
$8C..$8F:Version:=CL_GD5422;
$90..$93:Version:=CL_GD5426;
$94..$97:Version:=CL_GD5424;
$98..$9B:Version:=CL_GD5428;
$A4..$A7:Version:=CL_GD543x;
else Version:=CL_Unk54;
end;
SetDAC(_dacCL24,'Cirrus CL24');
end
else if testinx(SEQ,$19) then
case SubVers shr 6 of
0:Version:=CL_GD6205;
1:Version:=CL_GD6235;
2:Version:=CL_GD6215;
3:Version:=CL_GD6225;
end
else begin
Version:=CL_AVGA2;
case rdinx(SEQ,$A) and 3 of
0:mm:=256;
1:mm:=512;
2:mm:=1024;
end;
end;
features:=ft_cursor;
chip:=__cir54;
addvideo;
end;
end
else wrinx(SEQ,6,old);
end;
procedure _cirrus64;
var x,old:word;
begin
old:=rdinx(GRC,$A);
wrinx(GRC,$A,$CE); {Lock}
if (rdinx(GRC,$A)=0) then
begin
wrinx(GRC,$A,$EC); {unlock}
if (rdinx(GRC,$A)=1) then
begin
SubVers:=rdinx(GRC,$AA);
case SubVers shr 4 of
4:Version:=CL_GD6440;
5:Version:=CL_GD6412;
6:Version:=CL_GD5410;
7:Version:=CL_GD6420;
8:Version:=CL_GD6410;
else Version:=CL_Unk64;
end;
case rdinx(GRC,$BB) shr 6 of
0:mm:=256;
1:mm:=512;
2:mm:=768;
3:mm:=1024;
end;
chip:=__cir64;
addvideo;
end;
end;
wrinx(GRC,$A,old);
end;
procedure _compaq;
var old,x:word;
begin
old:=rdinx(GRC,$F);
wrinx(GRC,$F,0);
if not testinx(GRC,$45) then
begin
wrinx(GRC,$F,5);
if testinx(GRC,$45) then
begin
chip:=__compaq;
features:=ft_blit;
SubVers:=rdinx(GRC,$C) shr 3;
case SubVers of
3:Version:=CPQ_IVGS;
5:Version:=CPQ_AVGA;
6:Version:=CPQ_QV1024;
$E:if (rdinx(GRC,$56) and 4)<>0 then Version:=CPQ_QV1280
else Version:=CPQ_QV1024;
$10:Version:=CPQ_AVPort;
else Version:=CPQ_Unknown;
end;
if (rdinx(GRC,$C) and $B8)=$30 then {QVision}
begin
features:=features + ft_cursor;
wrinx(GRC,$F,$F);
case rdinx(GRC,$54) of
0:mm:=1024; {QV1024 fix}
2:mm:=512;
4:mm:=1024;
8:mm:=2048;
end;
DAC_RS2:=$8000;
DAC_RS3:=$1000;
end
else begin
rp.bx:=0;
rp.cx:=0;
vio($BF03);
if (rp.ch and 64)=0 then mm:=512;
end;
addvideo;
end
end;
wrinx(GRC,$F,old);
end;
procedure _everex;
var x:word;
begin
rp.bx:=0;
vio($7000);
if rp.al=$70 then
begin
x:=rp.dx shr 4;
if (x<>$678) and (x<>$236)
and (x<>$620) and (x<>$673) then {Some Everex boards use Trident chips.}
begin
case rp.ch shr 6 of
0:mm:=256;
1:mm:=512;
2:mm:=1024;
3:mm:=2048;
end;
name:='Everex Ev'+hx[x shr 8]+hx[(x shr 4) and 15]+hx[x and 15];
chip:=__everex;
addvideo;
end;
end;
end;
procedure _genoa;
var ad:word;
begin
ad:=memw[biosseg:$37];
if (memw[biosseg:ad+2]=$6699) and (mem[biosseg:ad]=$77) then
begin
case mem[biosseg:ad+1] of
0:Version:=GE_6200;
$11:begin
Version:=GE_6400;
mm:=512;
end;
$22:Version:=GE_6100;
$33:Version:=GE_5100; {Do we need to detect the Tseng versions ??}
$55:begin
Version:=GE_5300;
mm:=512;
end;
end;
if mem[biosseg:ad+1]<$33 then chip:=__genoa else chip:=__ET3000;
addvideo;
end
end;
procedure _hmc;
begin
if testinx(SEQ,$E7) and testinx(SEQ,$EE) then
begin
if (rdinx(SEQ,$E7) and $10)>0 then mm:=512;
chip:=__HMC;
Version:=HMC_304;
addvideo;
end;
end;
procedure _mxic;
begin
old:=rdinx(SEQ,$A7);
wrinx(SEQ,$A7,0); {disable extensions}
if not testinx(SEQ,$C5) then
begin
wrinx(SEQ,$A7,$87); {enable extensions}
if testinx(SEQ,$C5) then
begin
chip:=__mxic;
if (rdinx(SEQ,$26) and 1)=0 then Version:=MX_86010
else Version:=MX_86000; {Does this work, else test 85h bit 1 ??}
case (rdinx(SEQ,$C2) shr 2) and 3 of
0:mm:=256;
1:mm:=512;
2:mm:=1024;
end;
addvideo;
end;
end;
wrinx(SEQ,$A7,old);
end;
procedure _ncr;
var x:word;
begin
if testinx2(SEQ,5,5) then
begin
wrinx(SEQ,5,0); {Disable extended registers}
if not testinx(SEQ,$10) then
begin
wrinx(SEQ,5,1); {Enable extended registers}
if testinx(SEQ,$10) then
begin
chip:=__ncr;
SubVers:=rdinx(SEQ,8);
case SubVers shr 4 of
0:Version:=NCR_77C22;
1:Version:=NCR_77C21;
2:Version:=NCR_77C22E;
8..15:Version:=NCR_77C22Ep;
else Version:=NCR_Unknown;
end;
features:=ft_rwbank+ft_cursor;
name:=name+' Rev. '+istr(rdinx(SEQ,8) and 15);
if setmode($13) then;
checkmem(64);
addvideo;
end;
end;
end;
end;
procedure _oak;
var i:word;
begin
if testinx2($3DE,$D,$38) then
begin
features:=ft_rwbank;
if testinx2($3DE,$23,$1F) then
begin
case rdinx($3DE,2) and 6 of
0:mm:=256;
2:mm:=512;
4:mm:=1024;
6:mm:=2048;
end;
chip:=__oak87;
if (rdinx($3DE,0) and 2)=0 then Version:=OAK_087
else version:=OAK_083;
end
else begin
SubVers:=inp($3DE) shr 5;
case SubVers of
0:Version:=OAK_037;
2:Version:=OAK_067;
5:Version:=OAK_077;
7:Version:=OAK_057;
else Version:=OAK_Unknown;
end;
case rdinx($3de,13) shr 6 of
2:mm:=512;
1,3:mm:=1024; {1 might not give 1M??}
end;
chip:=__oak;
end;
features:=ft_rwbank;
addvideo;
end;
end;
procedure _p2000;
begin
if testinx2(GRC,$3D,$3F) and tstrg($3D6,$1F) and tstrg($3D7,$1F) then
begin
Version:=PR_2000;
chip:=__p2000;
features:=ft_rwbank+ft_blit;
if setmode($13) then;
checkmem(32);
addvideo;
end;
end;
procedure _paradise;
var old,old2:word;
begin
old:=rdinx(GRC,$F);
setinx(GRC,$F,$17); {Lock registers}
if not testinx2(GRC,9,$7F) then
begin
wrinx(GRC,$F,5); {Unlock them again}
if testinx2(GRC,9,$7F) then
begin
old2:=rdinx(crtc,$29);
modinx(crtc,$29,$8F,$85); {Unlock WD90Cxx registers}
if not testinx(crtc,$2B) then Version:=WD_PVGA1A
else begin
wrinx(SEQ,6,$48); {Enable C1x extensions}
if not testinx2(SEQ,7,$F0) then Version:=WD_90C00
else if not testinx(SEQ,$10) then
begin
if testinx2(crtc,$31,$68) then Version:=WD_90c22
else if testinx2(crtc,$31,$90) then Version:=WD_90c20A
else Version:=WD_90C20;
wrinx(crtc,$34,$A6);
if (rdinx(crtc,$32) and $20)<>0 then wrinx(crtc,$34,0);
end
else begin
features:=ft_rwbank;
if testinx2(SEQ,$14,$F) then
begin
SubVers:=(rdinx(crtc,$36) shl 8)+rdinx(crtc,$37);
case SubVers of
$3234:Version:=WD_90c24;
$3236:Version:=WD_90C26;
$3330:Version:=WD_90c30;
$3331:begin
Version:=WD_90C31;
features:=features+ft_cursor+ft_blit;
end;
$3333:begin
Version:=WD_90C33;
features:=features+ft_cursor;
end;
end;
end
else if not testinx2(SEQ,$10,4) then Version:=WD_90C10
else Version:=WD_90C11;
end;
end;
case rdinx(GRC,11) shr 6 of
2:mm:=512;
3:mm:=1024;
end;
if (Version>=WD_90c33) and ((rdinx(crtc,$3E) and $80)>0) then mm:=2048;
wrinx(crtc,$29,old2);
chip:=__paradise;
addvideo;
end;
end;
wrinx(GRC,$F,old);
end;
procedure _realtek;
var x:word;
begin
if testinx2(crtc,$1F,$3F) and tstrg($3D6,$F) and tstrg($3D7,$F) then
begin
chip:=__realtek;
SubVers:=rdinx(crtc,$1A) shr 6;
case SubVers of
0:Version:=RT_3103;
1:Version:=RT_3105;
2:Version:=RT_3106;
else Version:=RT_unknown;
end;
case rdinx(crtc,$1e) and 15 of
0:mm:=256;
1:mm:=512;
2:if x=0 then mm:=768 else mm:=1024;
3:if x=0 then mm:=1024 else mm:=2048;
end;
features:=ft_rwbank;
addvideo;
end;
end;
procedure _s3;
begin
wrinx(crtc,$38,0);
if not testinx2(crtc,$35,$F) then
begin
wrinx(crtc,$38,$48);
if testinx2(crtc,$35,$F) then
begin
features:=ft_blit+ft_line+ft_cursor;
SubVers:=rdinx(crtc,$30);
case SubVers of
$81:Version:=S3_911;
$82:Version:=S3_924;
$90:Version:=S3_928C;
$91:Version:=S3_928D;
$94..$95:Version:=S3_928E;
$A0:if (rdinx(crtc,$36) and 2)<>0 then Version:=S3_801AB
else Version:=S3_805AB;
$A2..$A4:if (rdinx(crtc,$36) and 2)<>0 then Version:=S3_801C
else Version:=S3_805C;
$A5:if (rdinx(crtc,$36) and 2)<>0 then Version:=S3_801D
else Version:=S3_805D;
$B0:Version:=S3_928PCI;
else Version:=S3_Unknown;
end;
if (SubVers<$90) then (* 911 and 924 *)
begin
if (rdinx(crtc,$41) and $10)<>0 then mm:=1024
else mm:=512;
end
else case rdinx(crtc,$36) and $E0 of
0,$80:mm:=2048;
$C0,$40:mm:=1024;
$E0,$60:mm:=512;
end;
chip:=__S3;
addvideo;
end;
end;
end;
procedure _trident;
var old,val,Xseg:word;
Phadr:longint;
begin
wrinx(SEQ,$B,0);
SubVers:=inp(SEQ+1);
old:=rdinx(SEQ,$E);
outp(SEQ+1,0);
val:=inp(SEQ+1);
outp(SEQ+1,old);
if (val and 15)=2 then
begin
outp($3c5,old xor 2); (* Trident should restore bit 1 reversed *)
case SubVers of
1:Version:=TR_8800BR; {This'll never happen}
2:Version:=TR_8800CS;
3:Version:=TR_8900B;
4,$13:Version:=TR_8900C;
$23:Version:=TR_9000;
$33:Version:=TR_8900CL;
$43:Version:=TR_9000i;
$53:Version:=TR_8900CXr;
$63:Version:=TR_LCD9100B;
$83:Version:=TR_LX8200;
$93:Version:=TR_9200CXi;
$A3:Version:=TR_LCD9320;
$73,$F3:Version:=TR_GUI9420;
else Version:=TR_Unknown;
end;
case SubVers and 15 of
1:chip:=__tridbr;
2:chip:=__tridCS;
3,4:chip:=__trid89;
end;
if (pos('Zymos Poach 51',getbios(0,255))>0) or
(pos('Zymos Poach 51',getbios(230,255))>0) then
begin
name:=name+' (Zymos Poach)';
chip:=__poach;
end;
if (SubVers=2) and (tstrg($2168,$f)) then
begin
IOadr:=$2160;
chip:=__IITAGX;
Version:=IIT_AGX;
if setmode($65) then;
checkmem(32);
XGAseg:=$B1F0;
Phadr:=$FF800000;
end
else begin
if (SubVers>=3) then
begin
case rdinx(crtc,$1f) and 3 of
0:mm:=256;
1:mm:=512;
2:mm:=768;
3:mm:=1024;
end;
end
else
if (rdinx(crtc,$1F) and 2)>0 then mm:=512;
end;
addvideo;
end
else begin {Trident 8800BR tests}
if (subvers=1) and testinx2(SEQ,$E,6) then
begin
Version:=TR_8800BR;
chip:=__tridBR;
if (rdinx(crtc,$1F) and 2)>0 then mm:=512;
addvideo;
end;
end;
end;
procedure _tseng;
var x,vs:word;
begin
outp($3bf,3);
outp(crtc+4,$A0); {Enable Tseng 4000 extensions}
if tstrg($3CD,$3F) then
begin
features:=ft_rwbank;
if testinx2(crtc,$33,$F) then
begin
if tstrg($3CB,$33) then
begin
features:=features+ft_cursor;
chip:=__ET4w32;
SubVers:=rdinx($217A,$EC);
case SubVers shr 4 of
0:Version:=ET_4W32;
3:Version:=ET_4W32i;
2:Version:=ET_4W32p;
else Unk(ET_4Unk,SubVers);
end;
case rdinx(crtc,$37) and $9 of
0:mm:=2048;
1:mm:=4096;
{ 9:mm:=256;}
8:mm:=512;
9:mm:=1024;
end;
if (Version<>ET_4W32) and ((rdinx(crtc,$32) and $80)>0) then
mm:=mm*2;
end
else begin
chip:=__ET4000;
Version:=ET_4000;
case rdinx(crtc,$37) and $B of
3,9:mm:=256;
10:mm:=512;
11:mm:=1024;
end;
end;
end
else begin
Version:=ET_3000;
chip:=__ET3000;
if setmode($13) then;
x:=inp(CRTC+6);
x:=rdinx($3c0,$36);
outp($3C0,x or $10);
case (rdinx(GRC,6) shr 2) and 3 of
0,1:vs:=$a000;
2:vs:=$b000;
3:vs:=$b800;
end;
meml[vs:1]:=$12345678;
if memw[vs:2]=$3456 then mm:=512;
wrinx($3c0,$36,x); {reset value and reenable DAC}
end;
addvideo;
end;
end;
procedure _UMC;
begin
old:=inp($3BF);
outp($3BF,3);
if not testinx(SEQ,6) then
begin
outp($3BF,$AC);
if testinx(SEQ,6) then
begin
version:=UMC_408;
chip:=__UMC;
case rdinx(SEQ,7) shr 6 of
1:mm:=512;
2,3:mm:=1024;
end;
features:=ft_rwbank;
addvideo;
end;
end;
outp($3BF,old);
end;
procedure _video7;
var ram:string[10];
begin
vio($6f00);
if rp.bx=$5637 then
begin
vio($6f07);
if rp.ah<128 then ram:='VRAM' else ram:='FASTWRITE';
(* old:=rdinx(crtc,$C);
wrinx(crtc,$C,old);
wrinx($3C4,6,$EA); {Enable Extensions}
if rdinx(crtc,$1F)=(old XOR $EA) then
begin
wrinx(crtc,$C,old XOR $FF);
if rdinx(crtc,$1F)=(old XOR $15) then
begin
SubVers:=(rdinx($3C4,$8F) shl 8)+rdinx($3C4,$8E);
end;
end;
wrinx(crtc,$C,old); *)
Subvers:=(rdinx(SEQ,$8F) shl 8)+rdinx(SEQ,$8E);
case Subvers of
$8000..$FFFF:Version:=V7_VEGA;
$7000..$70FF:Version:=V7_208_13;
$7140..$714F:Version:=V7_208A;
$7151:Version:=V7_208B;
$7152:Version:=V7_208CD;
$7760:Version:=V7_216BC;
$7763:Version:=V7_216D;
$7764:Version:=V7_216E;
$7765:Version:=V7_216F;
else Version:=V7_Unknown;
end;
case rp.ah and 127 of
2:mm:=512;
4:mm:=1024;
end;
chip:=__video7;
features:=ft_cursor;
if Version>=V7_208A then Features:=features+ft_rwbank;
addvideo;
end
end;
procedure _Weitek;
var x:word;
begin
old:=rdinx(SEQ,$11);
outp(SEQ+1,old);
outp(SEQ+1,old);
outp(SEQ+1,inp(SEQ+1) or $20);
if not testinx(SEQ,$12) then
begin
x:=rdinx(SEQ,$11);
outp(SEQ+1,old);
outp(SEQ+1,old);
outp(SEQ+1,inp(SEQ+1) and $DF);
if testinx(SEQ,$12) and tstrg($3CD,$FF) then
begin
chip:=__Weitek;
Version:=WT_5186; {Should check for version and memory}
mm:=256;
addvideo;
end;
end;
wrinx(SEQ,$11,old);
end;
procedure _XGA;
var p:pointer;
posbase,cardid,xga_base,x,cx:word;
temp0,temp1,temp2,temp3:byte;
begin
getintvec($15,p);
if (seg(p^)<>0) then
begin
rp.ax:=$C400;
rp.dx:=$ffff;
intr($15,rp);
if not odd(rp.flags) and (rp.dx<>$ffff) then
begin
posbase:=rp.dx;
for cx:=0 to 9 do
begin
disable; (* CLI - Disable interrupts *)
if cx=0 then outp($94,$DF)
else begin
rp.ax:=$C401;
rp.bx:=cx;
intr($15,rp);
end;
cardid:=inpw(posbase);
temp0:=inp(posbase+2);
temp1:=inp(posbase+3);
temp2:=inp(posbase+4);
temp3:=inp(posbase+5);
if cx=0 then outp($94,$FF)
else begin
rp.ax:=$C402;
rp.bx:=cx;
intr($15,rp);
end;
enable; (* STI - Enable interrupts *)
if (cardid>=$8FD8) and (cardid<=$8FDB) then
begin
IOadr:=$2100+(temp0 and $E)*8;
x:=rdinx(IOadr+10,$52) and 15;
if (x<>0) and (x<>15) then
begin
chip:=__XGA;
outp(IOadr+4,0);
outp(IOadr,4);
checkmem(16);
case cardid of
$8FDA:Version:=XGA_NI;
$8FDB:Version:=XGA_org;
end;
XGAseg:=(temp0 shr 4)*$2000+$C1C0+(temp0 and $E)*4;
Phadr:=((temp2 and $FE)*word(8)+(temp0 and $E))*longint($200000);
addvideo;
end;
end;
end;
end;
end;
end;
procedure _yamaha;
begin
if testinx2(crtc,$7C,$7C) then
begin
Version:=YA_6388;
addvideo;
end;
end;
procedure _xbe;
var
x:word;
xbe0:_xbe0;
xbe1:_xbe1;
begin
viop($4E00,0,0,0,@xbe0);
if (rp.ax=$4E) and (xbe0.sign=$41534556) then
begin
for x:=0 to xbe0.xgas-1 do
begin
viop($4E01,0,0,x,@xbe1);
if (rp.ax=$4E) then
begin
chip:=__xbe;
mm:=xbe1.memory*longint(64);
Instance:=x;
IOadr :=xbe1.iobase;
XGAseg:=xbe1.memreg;
Phadr :=xbe1.vidadr;
name:=gtstr(xbe1.oemadr);
UNK(VS_XBE,xbe0.vers);
addvideo;
end;
end;
end;
end;
procedure _vesa;
var
vesarec:_vbe0;
x:word;
begin
viop($4f00,0,0,0,@vesarec);
if (rp.ax=$4f) and (vesarec.sign=$41534556) then
begin
chip:=__vesa;
mm:=vesarec.mem*longint(64);
name:=gtstr(vesarec.oemadr);
UNK(VS_VBE,vesarec.vers);
dactype:=_dac8; {Dummy, to keep Cirrus 542x out of trouble}
addvideo;
end;
end;
type
pel=record
index,red,green,blue:byte;
end;
procedure readpelreg(index:word;var p:pel);
begin
p.index:=index;
disable;
outp($3C7,index);
p.red :=inp($3C9);
p.blue :=inp($3C9);
p.green:=inp($3C9);
enable;
end;
procedure writepelreg(var p:pel);
begin
disable;
outp($3C8,p.index);
outp($3C9,p.red);
outp($3C9,p.blue);
outp($3C9,p.green);
enable;
end;
function setcomm(cmd:word):word;
begin
dac2comm;
outp($3c6,cmd);
dac2comm;
setcomm:=inp($3c6);
end;
procedure testdac; {Test for type of DAC}
var
x,y,z,v,oldcomm,oldpel,notcomm:word;
dac8,dac8now:boolean;
procedure waitforretrace;
begin
repeat until (inp(CRTC+6) and 8)=0;
repeat until (inp(CRTC+6) and 8)>0; {Wait until we're in retrace}
end;
function dacis8bit:boolean;
var
pel2,x,v:word;
pel1:pel;
begin
pel2:=inp($3C8);
readpelreg(255,pel1);
v:=pel1.red;
pel1.red:=255;
writepelreg(pel1);
readpelreg(255,pel1);
x:=pel1.red;
pel1.red:=v;
writepelreg(pel1);
outp($3C8,pel2);
dacis8bit:=(x=255);
end;
function testdacbit(bit:word):boolean;
var v:word;
begin
dac2pel;
outp($3C6,oldpel and (bit xor $FF));
dac2comm;
disable;
outp($3C6,oldcomm or bit);
v:=inp($3C6);
outp($3C6,v and (bit xor $FF));
enable;
testdacbit:=(v and bit)<>0;
end;
begin
setDAC(_dac8,'Normal');
dac2comm;
oldcomm:=inp($3c6);
dac2pel;
oldpel:=inp($3c6);
dac2comm;
outp($3C6,0);
dac8:=dacis8bit;
dac2pel;
notcomm:=oldcomm xor 255;
outp($3C6,notcomm);
dac2comm;
v:=inp($3C6);
if v<>notcomm then
begin
if (setcomm($E0) and $E0)<>$E0 then
begin
dac2pel;
x:=inp($3C6);
repeat
y:=x; {wait for the same value twice}
x:=inp($3C6);
until (x=y);
z:=x;
dac2comm;
if daccomm<>$8E then
begin {If command register=$8e, we've got an SS24}
y:=8;
repeat
x:=inp($3C6);
dec(y);
until (x=$8E) or (y=0);
end
else x:=daccomm;
if x=$8e then setDAC(_dacss24,'SS24')
else setDAC(_dac15,'Sierra SC11486');
dac2pel;
end
else begin
if (setcomm($60) and $E0)=0 then
begin
if (setcomm(2) and 2)>0 then setDAC(_dacatt,'ATT 20c490')
else setDAC(_dacatt,'ATT 20c493');
end
else begin
x:=setcomm(oldcomm);
if inp($3C6)=notcomm then
begin
if setcomm($FF)<>$FF then setDAC(_dacadac1,'Acumos ADAC1')
else begin
dac8now:=dacis8bit;
dac2comm;
outp($3C6,(oldcomm or 2) and $FE);
dac8now:=dacis8bit;
if dac8now then
if dacis8bit then setDAC(_dacatt,'ATT 20c491')
else setDAC(_dacCL24,'Cirrus 24bit DAC')
else setDAC(_dacatt,'ATT 20c492');
end;
end
else begin
if trigdac=notcomm then setDAC(_dacCL24,'Cirrus 24bit DAC')
else begin
dac2pel;
outp($3C6,$FF);
case trigdac of
$44:setDAC(_dacmus,'MUSIC ??'); {4870 ??}
$82:setDAC(_dacmus,'MUSIC MU9C4910');
$8E:setDAC(_dacss24,'Diamond SS2410');
else
if testdacbit($10) then setDAC(_dacsc24,'Sierra 16m')
else if testdacbit(4) then setDAC(_dacUnk9,'Unknown DAC #9')
else setDAC(_dac16,'Sierra 32k/64k');
end;
end;
end;
end;
end;
dac2comm;
outp($3c6,oldcomm);
end;
dac2pel;
outp($3c6,oldpel);
if (dactype=_dac8) and (DAC_RS2<>0) and (DAC_RS3<>0) then
begin
oldpel :=inp($3C6);
oldcomm:=inp($3C6+DAC_RS2);
outp($3C6+DAC_RS2,oldpel xor $FF);
if (inp($3C6)=oldpel) and (inp($3C6+DAC_RS2)=(oldpel xor $FF)) then
SetDAC(_dacBt484,'Brooktree Bt484');
outp($3C6+DAC_RS2,oldcomm);
outp($3C6,oldpel);
end;
if dactype=_dac8 then
begin
WaitforRetrace;
outp($3C8,222);
outp($3C9,$43);
outp($3C9,$45);
outp($3C9,$47); {Write 'CEGEDSUN' + mode to DAC index 222}
outp($3C8,222);
outp($3C9,$45);
outp($3C9,$44);
outp($3C9,$53);
outp($3C8,222);
outp($3C9,$55);
outp($3C9,$4E);
outp($3C9,13); {Should be in CEG mode now}
outp($3C6,255);
x:=(inp($3c6) shr 4) and 7;
if x<7 then
begin
setDAC(_dacCEG,'Edsun CEG rev. '+chr(x+48));
WaitforRetrace;
outp($3C8,223);
outp($3C9,0); {Back in normal dac mode}
end;
end;
end;
procedure findbios; {Finds the most likely BIOS segment}
var
score:array[0..7] of byte;
x,y:word;
begin
biosseg:=$c000;
for x:=0 to 6 do score[x]:=1;
for x:=0 to 7 do
begin
rp.bh:=x;
vio($1130);
if (rp.es>=$c000) and ((rp.es and $7ff)=0) then
inc(score[(rp.es-$c000) shr 11]);
end;
for x:=0 to 6 do
begin
y:=$c000+(x shl 11);
if (memw[y:0]<>$aa55) or (mem[y:2]<48) then
score[x]:=0; {fail if no rom}
end;
for x:=6 downto 0 do
if score[x]>0 then
biosseg:=$c000+(x shl 11);
end;
type
fnctyp=procedure;
const
chps=24;
chptype:array[1..chps] of chips=(__paradise,__Video7,__MXIC,__UMC
,__Genoa,__Everex,__Trid89,__ati2,__Aheadb,__NCR,__S3,__AL2101
,__Cir54,__Cir64,__Weitek,__ET4000,__Realtek,__P2000
,__Yamaha,__Oak,__Cirrus,__Compaq,__HMC,__chips451);
var
chp,vid1:word;
procedure findvideo;
begin
vids:=0;
dactype:=_dac0;
features:=0;
if odd(inp($3CC)) then CRTC:=$3D4 else CRTC:=$3B4;
if dotest[__VESA] then _vesa;
if dotest[__XBE] then _xbe;
if dotest[__XGA] then _XGA;
_crt:='';
chip:=__none;
secondary:='';
name:='';
DAC_RS2:=0;DAC_RS3:=0;
video:='none';
rp.bx:=$1010;
vio($1200);
if rp.bh<=1 then
begin
video:='EGA';
chip:=__ega;
mm:=rp.bl;
vio($1a00);
if rp.al=$1a then
begin
if (rp.bl<4) and (rp.bh>3) then
begin
old:=rp.bl;
rp.bl:=rp.bh;
rp.bh:=old;
end;
video:='MCGA';
case rp.bl of
2,4,6,10:_crt:='TTL Color';
1,5,7,11:_crt:='Monochrome';
8,12:_crt:='Analog Color';
end;
case rp.bh of
1:secondary:='Monochrome';
2:secondary:='CGA';
end;
findbios;
if (getbios($31,9)='') and (getbios($40,2)='22') then
begin
video:='EGA'; {@#%@ lying ATI EGA Wonder !}
name:='ATI EGA Wonder';
addvideo;
end else
if (rp.bl<10) or (rp.bl>12) then
begin
chp:=0;vid1:=vids;
while (vids=vid1) and (chp<chps) do
begin
inc(chp);
video:='VGA';
chip:=__vga;
mm:=256;
features:=0;
dactype:=_dac0;
version:=0;
subvers:=0;
if debug then
begin
writeln('Testing: '+header[chptype[chp]]);
if readkey='' then;
end;
if dotest[chptype[chp]] then
case chptype[chp] of
__Aheadb:_Ahead;
__AL2101:_AL2101;
__ati2:_Ati;
__chips451:_chipstech;
__Cir54:_Cirrus54;
__Cir64:_Cirrus64;
__Cirrus:_Cirrus;
__Compaq:_Compaq;
__Everex:_Everex;
__Genoa:_Genoa;
__HMC:_HMC;
__MXIC:_MXIC;
__NCR:_NCR;
__Oak:_Oak;
__P2000:_P2000;
__paradise:_paradise;
__Realtek:_Realtek;
__S3:_S3;
__Trid89:_Trident;
__ET4000:_Tseng;
__UMC:_UMC;
__Video7:_Video7;
__Weitek:_weitek;
__Yamaha:_Yamaha;
end;
end;
if vids=vid1 then addvideo;
end;
end;
end;
end;