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A2osX/DRV/DHGR.DRV.S.txt

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PR#3
PREFIX /A2OSX.BUILD
LOMEM $A00
INC 1
AUTO 6
.LIST OFF
.OP 65C02
.OR $2000
.TF /A2OSX.BUILD/DRV/DHGR.DRV
*--------------------------------------
.INB /A2OSX.BUILD/INC/MACROS.I
.INB /A2OSX.BUILD/INC/A2OSX.I
.INB /A2OSX.BUILD/INC/MLI.ERR.I
.INB /A2OSX.BUILD/INC/IO.I
.INB /A2OSX.BUILD/INC/LIBGFX.I
*--------------------------------------
ZPBase .EQ ZPDRV
ZPShiftLo .EQ ZPDRV+2
ZPShiftHi .EQ ZPDRV+4
ZPCount .EQ ZPDRV+6
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp Dev.Detect cld,jmp abs=DRV
.DA #$61 6502,Level 1 (65c02)
.DA #1 DRV Layout Version 1
.DA 0
.DA CS.END-CS.START Code Length
.DA DEV.HEADER-CS.START Device Header Offset
.DA DRV.CS.START-CS.START Driver Code Offset
.DA DRV.CS.END-DRV.CS.START Drv Code Length
*--------------------------------------
* Relocation Table
*--------------------------------------
L.MSG.DETECT .DA MSG.DETECT
.DA 0 End Of Reloc Table
*--------------------------------------
Dev.Detect >LDYA L.MSG.DETECT
>SYSCALL CPrintFYA
ldx #0
.1 txa
stz Shift0.hi,x
asl
rol Shift0.hi,x
lsr
sta Shift0.lo,x
inx
bpl .1
ldx #0
.2 lda Shift0.hi,x
sta Shift1.hi,x
lda Shift0.lo,x
asl
asl
rol Shift1.hi,x
lsr
sta Shift1.lo,x
inx
bpl .2
ldx #0
.3 lda Shift1.hi,x
sta Shift2.hi,x
lda Shift1.lo,x
asl
asl
rol Shift2.hi,x
lsr
sta Shift2.lo,x
inx
bpl .3
ldx #0
.4 lda Shift2.hi,x
sta Shift3.hi,x
lda Shift2.lo,x
asl
asl
rol Shift3.hi,x
lsr
sta Shift3.lo,x
inx
bpl .4
ldx #0
.5 lda Shift3.hi,x
sta Shift4.hi,x
lda Shift3.lo,x
asl
asl
rol Shift4.hi,x
lsr
sta Shift4.lo,x
inx
bpl .5
ldx #0
.6 lda Shift4.hi,x
sta Shift5.hi,x
lda Shift4.lo,x
asl
asl
rol Shift5.hi,x
lsr
sta Shift5.lo,x
inx
bpl .6
ldx #0
.7 lda Shift5.hi,x
sta Shift6.hi,x
lda Shift5.lo,x
asl
asl
rol Shift6.hi,x
lsr
sta Shift6.lo,x
inx
bpl .7
clc
rts
CS.END
MSG.DETECT >CSTR "Apple IIe/IIc DHGR Driver.\r\n"
*--------------------------------------
* Device Header (16 Bytes)
*--------------------------------------
DEV.HEADER cld
jmp (DRV.CS.START,x)
.DA #0
.BS 6
DEV.HEADER.NAME >PSTR "GFX"
.BS 1
*--------------------------------------
* Driver Code
*--------------------------------------
DRV.CS.START .DA STATUS
.DA BADCALL
.DA BADCALL
.DA BADCALL
.DA CONTROL
.DA BADCALL
.DA OPEN
.DA CLOSE
.DA BADCALL
.DA BADCALL
.DA BADCALL
*--------------------------------------
.DA SETPIXEL
.DA GETPIXEL
.DA HLINE
.DA VLINE
.DA FILLRECT
.DA BITBLT
*--------------------------------------
L.STAT .DA STAT
L.DIV7.0 .DA DIV7.0
.DA DIV7.256
.DA DIV7.512
L.MOD7.0 .DA MOD7.0
.DA MOD7.256
.DA MOD7.512
L.Shift0.Lo .DA Shift0.lo
L.Shift0.Hi .DA Shift0.hi
.DA 0 end or relocation
*--------------------------------------
BADCALL lda #MLI.ERR.BADCALL
sec
rts
*--------------------------------------
STATUS >LDYA L.STAT
clc
rts
*--------------------------------------
OPEN sta A2osX.SCRNDEVS+2 DEV.ID in A
ldy #0
ldx #0
.1 lda L.DIV7.0,y
sta DIV7.lo,x
lda L.MOD7.0,y
sta MOD7.lo,x
iny
lda L.DIV7.0,y
sta DIV7.hi,x
lda L.MOD7.0,y
sta MOD7.hi,x
iny
inx
cpx #3
bne .1
ldx #7
lda L.Shift0.Lo+1
.10 sta Shiftlo.hi,x
inc
dex
bne .10
ldx #7
lda L.Shift0.hi+1
.11 sta Shifthi.hi,x
inc
dex
bne .11
.8 clc
rts
*--------------------------------------
CONTROL sta CLRTEXT
sta CLRMIXED
sta SETHIRES
sta CLR80STORE
sta CLRPAGE2
sta SETIOUDIS
sta SETDHIRES
* sta CLR80DISP
* sta SETDHIRES
* sta CLRDHIRES
* sta SET80DISP
* sta SETDHIRES
* sta CLRDHIRES
* sta SETDHIRES
lda #3
sta A2osX.ASCREEN
clc
rts
*--------------------------------------
CLOSE clc
rts
*--------------------------------------
* SETPIXEL
* In : YA = Ptr to CtrlBlk :
* 1 : OP (XOR only)
* 2 : Mode
* 3 : Color
* 4 : SrcX1
* 6 : SrcY1
*--------------------------------------
SETPIXEL >STYA ZPBase
ldy #S.CB.Y1 Skip S.CB.Y1+1.....always 0
.1 lda (ZPBase),y
sta CB.Cache,y
dey
bpl .1
sta SET80STORE
lda CB.Cache+S.CB.MODE
bit #S.CB.MODE.C16
bne SETPIXEL.C16
SETPIXEL.MONO ldx CB.Cache+S.CB.X1+1 Get X Hi byte....
lda DIV7.lo,x
sta .1+1
lda DIV7.hi,x
sta .1+2
lda MOD7.lo,x
sta .2+1
lda MOD7.hi,x
sta .2+2
lda DIV7.BASE,x
ldx CB.Cache+S.CB.X1
clc
.1 adc $ffff,x DIV7 : x = X.LO, a = X DIV 7
pha save X DIV 7
lsr
ldy CB.Cache+S.CB.Y1
clc
adc BASEL,y setup line Base Ptr (A=Col)
sta ZPBase
lda BASEH,y
sta ZPBase+1
ply
lda COL.BANK,y
tay
sta $c000,y
.2 ldy $ffff,x MOD7 : x = X.LO, y = X MOD 7
lda CB.Cache+S.CB.OP
beq .5
lda (ZPBase) XOR
eor Mono.Masks,y y = mod 7
sta (ZPBase)
sta CLR80STORE
rts
.5 lda (ZPBase)
ldx CB.Cache+S.CB.COLOR get color
bne .6
and Mono.NMasks,y includes And $7F for mono
sta (ZPBase)
sta CLR80STORE
rts
.6 and #$7F switch back this byte to mono
ora Mono.Masks,y
sta (ZPBase)
sta CLR80STORE
rts
SETPIXEL.C16 lda CB.Cache+S.CB.X1
lsr CB.Cache+S.CB.X1+1 divide by 4
ror
lsr CB.Cache+S.CB.X1+1
ror
tay Y=X/4 (range 0->139)
lda DIV7.0,y A=X/4/7 (range 0->19)
asl times 2 (range 0->38)
ldx CB.Cache+S.CB.Y1
adc BASEL,x setup line Base Ptr (cc by asl)
sta ZPBase ZPBase now point to first of...
lda BASEH,x
sta ZPBase+1 ...the 4 columns
lda MOD7.0,y get MOD
asl times 4 to compute index in MASK tables
asl
tax set in X for Masks,NMasks
lda CB.Cache+S.CB.COLOR
asl times 4 to compute index in PIXELS table
asl
tay
lda Color.Masks,x bits in 1st byte to light?
beq .10
and Color.Pixels,y apply color
sta GBYTE
sta SETPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.10 inx
iny
lda Color.Masks,x
beq .11
and Color.Pixels,y apply color
sta GBYTE
sta CLRPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.11 inc ZPBase
inx
iny
lda Color.Masks,x
beq .12
and Color.Pixels,y apply color
sta GBYTE
sta SETPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.12 inx
iny
lda Color.Masks,x
beq .13
and Color.Pixels,y apply color
sta GBYTE
sta CLRPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.13 sta CLR80STORE
rts
*--------------------------------------
* GETPIXEL
*--------------------------------------
GETPIXEL rts
*--------------------------------------
* HLINE X1,X2 at Y1
*--------------------------------------
HLINE >STYA ZPBase
ldy #S.CB.X2+1
.1 lda (ZPBase),y
sta CB.Cache,y
dey
bpl .1
HLINE.I lda CB.Cache+S.CB.MODE
bit #S.CB.MODE.C16
bne HLINE.C16
HLINE.MONO lda CB.Cache+S.CB.X2 Count=X2-X1
sec
sbc CB.Cache+S.CB.X1
eor #$ff
sta ZPCount
lda CB.Cache+S.CB.X2+1
sbc CB.Cache+S.CB.X1+1
eor #$ff
sta ZPCount+1
ldx CB.Cache+S.CB.X1+1 Get X Hi byte....
lda DIV7.lo,x
sta .1+1
lda DIV7.hi,x
sta .1+2
lda MOD7.lo,x
sta .2+1
lda MOD7.hi,x
sta .2+2
lda DIV7.BASE,x
ldx CB.Cache+S.CB.X1
clc
.1 adc $ffff,x DIV7 : x = X.LO, a = X DIV 7
pha save X DIV 7
lsr
ldy CB.Cache+S.CB.Y1
clc
adc BASEL,y setup line Base Ptr (A=Col)
sta ZPBase
lda BASEH,y
sta ZPBase+1
ply
lda COL.BANK,y
tay
sta $c000,y
.2 ldy $ffff,x MOD7 : x = X.LO, y = X MOD 7
HLINE.C16
rts
*--------------------------------------
* VLINE Y1,Y2 at X1
*--------------------------------------
VLINE >STYA ZPBase
ldy #S.CB.Y2
.1 lda (ZPBase),y
sta CB.Cache,y
dey
bpl .1
sta SET80STORE
VLINE.MONO ldx CB.Cache+S.CB.X1+1 Get X Hi byte....
lda DIV7.lo,x
sta .1+1
lda DIV7.hi,x
sta .1+2
lda MOD7.lo,x
sta .2+1
lda MOD7.hi,x
sta .2+2
lda DIV7.BASE,x
ldx CB.Cache+S.CB.X1
clc
.1 adc $ffff,x DIV7 : x = X.LO, a = X DIV 7
sta XDIV7 save X DIV 7
.2 lda $ffff,x MOD7 : x = X.LO, y = X MOD 7
sta XMOD7
lda CB.Cache+S.CB.OP
beq .4
ldx CB.Cache+S.CB.Y1
.3 lda XDIV7
tay
lsr
clc
adc BASEL,x
sta ZPBase
lda BASEH,x
sta ZPBase+1
ldx COL.BANK,y
sta $C000,x
ldy XMOD7
lda (ZPBase) XOR
eor Mono.Masks,y y = mod 7
sta (ZPBase)
bra .6
.4 lda (ZPBase)
ldx CB.Cache+S.CB.COLOR get color
bne .5
and Mono.NMasks,y includes And $7F for mono
sta (ZPBase)
bra .6
.5 and #$7F switch back this byte to mono
ora Mono.Masks,y
sta (ZPBase)
.6 inc CB.Cache+S.CB.Y1
ldx CB.Cache+S.CB.Y1
cpx CB.Cache+S.CB.Y2
bne .3
sta CLR80STORE
rts
VLINE.C16 lda CB.Cache+S.CB.X1
lsr CB.Cache+S.CB.X1+1 divide by 4
ror
lsr CB.Cache+S.CB.X1+1
ror
tay Y=X/4 (range 0->139)
lda DIV7.0,y A=X/4/7 (range 0->19)
asl times 2 (range 0->38)
ldx CB.Cache+S.CB.Y1
adc BASEL,x setup line Base Ptr (cc by asl)
sta ZPBase ZPBase now point to first of...
lda BASEH,x
sta ZPBase+1 ...the 4 columns
lda MOD7.0,y get MOD
asl times 4 to compute index in MASK tables
asl
tax set in X for Masks,NMasks
lda CB.Cache+S.CB.COLOR
asl times 4 to compute index in PIXELS table
asl
tay
lda Color.Masks,x bits in 1st byte to light?
beq .10
and Color.Pixels,y apply color
sta GBYTE
sta SETPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.10 inx
iny
lda Color.Masks,x
beq .11
and Color.Pixels,y apply color
sta GBYTE
sta CLRPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.11 inc ZPBase
inx
iny
lda Color.Masks,x
beq .12
and Color.Pixels,y apply color
sta GBYTE
sta SETPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.12 inx
iny
lda Color.Masks,x
beq .13
and Color.Pixels,y apply color
sta GBYTE
sta CLRPAGE2
lda (ZPBase)
and Color.NMasks,x reset existing pixel,
ora GBYTE
sta (ZPBase)
.13 sta CLR80STORE
rts
*--------------------------------------
* FILLRECT
* 2 : Mode
* 3 : Color
* 4 : SrcX1
* 6 : SrcY1
* 8 : SrcX2
* 10 : SrcY2
*--------------------------------------
FILLRECT >STYA ZPBase
ldy #S.CB.Y2
.1 lda (ZPBase),y
sta CB.Cache,y
dey
bpl .1
.2 jsr HLINE.I
lda CB.Cache+S.CB.Y1
cmp CB.Cache+S.CB.Y2
beq .8
inc CB.Cache+S.CB.Y1
bra .2
.8 rts
*--------------------------------------
* BitBlt
* In : YA = Ptr to CtrlBlk :
* 1 : OP
* 4 : SrcX1
* 6 : SrcY1
* 8 : SrcX2
* 10 : SrcY2
* 12 : DestX
* 14 : DestY
* 16 : BM Struct Ptr
* 18 : Save Ptr
*--------------------------------------
BITBLT >STYA ZPBase
lda (ZPBase)
clc
rts
*--------------------------------------
DRV.CS.END
*--------------------------------------
Shift0.lo .BS 128
Shift0.hi .BS 128
Shift1.lo .BS 128
Shift1.hi .BS 128
Shift2.lo .BS 128
Shift2.hi .BS 128
Shift3.lo .BS 128
Shift3.hi .BS 128
Shift4.lo .BS 128
Shift4.hi .BS 128
Shift5.lo .BS 128
Shift5.hi .BS 128
Shift6.lo .BS 128
Shift6.hi .BS 128
*--------------------------------------
.INB /A2OSX.SRC/DRV/DHGR.DRV.T
*--------------------------------------
DIV7.lo .BS 3
DIV7.hi .BS 3
MOD7.lo .BS 3
MOD7.hi .BS 3
Shiftlo.hi .BS 7
Shifthi.hi .BS 7
*--------------------------------------
CB.Cache .BS S.CB
*--------------------------------------
XDIV7 .BS 1
XMOD7 .BS 1
GBYTE .BS 1
*--------------------------------------
STAT .DA #0
.DA #0,#0,#0
>PSTR "Apple II DHGR"
.BS 3
.DA #S.DEVSTAT.T.GFX
.DA #0
.DA $0900
*--------------------------------------
DEVSTAT.MODES .DA #S.CB.MODE.MONO+S.CB.MODE.C16
DEVSTAT.W .DA 560 X.SIZE
DEVSTAT.H .DA 192 Y.SIZE
*--------------------------------------
DRV.SIZE .EQ *-DRV.CS.START
*--------------------------------------
.LIST OFF
MAN
SAVE /A2OSX.SRC/DRV/DHGR.DRV.S
ASM
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