mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-06-16 07:29:29 +00:00
vgi: work on doom
This commit is contained in:
parent
598eb22da7
commit
84b997651d
|
@ -7,10 +7,11 @@ EMPTYDISK = ../../../empty_disk/empty.dsk
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all: vgi_myst.dsk make_boxes_asm
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vgi_myst.dsk: HELLO VGI-MYST
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vgi_myst.dsk: HELLO VGI-MYST VGI-DOOM
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cp $(EMPTYDISK) vgi_myst.dsk
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$(DOS33) -y vgi_myst.dsk SAVE A HELLO
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$(DOS33) -y vgi_myst.dsk BSAVE -a 0xC00 VGI-MYST
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$(DOS33) -y vgi_myst.dsk BSAVE -a 0x4000 VGI-DOOM
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###
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@ -29,6 +30,23 @@ myst_vgi.o: clock.data rocket.data rocket_door.data red_book.data fireplace.data
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vgi_triangles.s
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ca65 -o myst_vgi.o myst_vgi.s -l myst_vgi.lst
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###
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VGI-DOOM: doom_vgi.o
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ld65 -o VGI-DOOM doom_vgi.o -C $(LINKERSCRIPTS)/apple2_4000.inc
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doom_vgi.o: doom.data \
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doom_vgi.s vgi_clearscreen.s vgi_rectangle.s vgi_circles.s vgi_lines.s \
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vgi_triangles.s
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ca65 -o doom_vgi.o doom_vgi.s -l doom_vgi.lst
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###
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doom.data: make_boxes_asm doom.vgi
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echo "doom_data:" > doom.data
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./make_boxes_asm < doom.vgi >> doom.data
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###
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@ -79,4 +97,4 @@ make_boxes_asm.o: make_boxes_asm.c
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###
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clean:
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rm -f *~ *.o *.lst HELLO VGI-MYST make_boxes_asm *.data
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rm -f *~ *.o *.lst HELLO VGI-MYST VGI-DOOM make_boxes_asm *.data
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@ -161,6 +161,15 @@ VGI Line (10)
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The last point you draw is the starting point for LINETO
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=============
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VGI Line Far (11)
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LINE color x1 y1 x2 y2
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Draws a line from (x1,y1)
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In this one X2 must be > 255
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============
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VGI End (15)
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147
graphics/hgr/vgi/doom.vgi
Normal file
147
graphics/hgr/vgi/doom.vgi
Normal file
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@ -0,0 +1,147 @@
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; Doom. A bad Idea
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CLS 0 ; black background
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; back walls
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LINE 7 0 99 41 93 ; left
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LINE 7 0 91 41 90
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LINE 7 0 77 41 77
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LINE 7 0 70 41 70
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LINE 7 69 86 99 86 ; middle
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LINE 7 69 89 194 89
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LINE 7 71 74 97 74
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LINE 2 71 65 98 72 ; upper
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LINETO 182 72
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DRECT 0x8 0x22 160 62 173 66 ; green blobs
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DRECT 0x8 0x22 144 63 153 65
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DRECT 0x8 0x22 90 57 97 64
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; white walls
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RECT 7 7 183 60 278 72 ; top white wall
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LINE 4 183 67 211 67 ; top bricks
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LINE 4 191 67 191 60
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LINE 4 199 67 199 60
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LINE 4 208 77 208 57
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RECT 7 7 241 59 278 109 ; right white wall
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LINE 4 241 63 255 60 ; going down
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LINE 4 241 68 255 68
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LINE 4 241 73 255 72
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LINE 4 241 85 255 85
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LINE 4 241 92 255 92
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LINE 4 279 102 241 94
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LINEF 4 256 60 256 107 ; vertical
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LINEF 4 259 60 259 96
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LINEF 4 262 60 262 96
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LINEF 4 265 60 265 96
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LINEF 4 268 60 268 96
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LINEF 5 274 60 274 96
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LINEF 4 268 67 279 67 ; horizontal
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LINEF 4 268 72 279 72
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LINEF 4 269 74 279 74
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LINEF 4 269 80 279 80
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LINEF 4 269 83 279 83
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LINEF 4 269 86 279 86
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LINEF 4 269 94 279 94
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LINEF 4 256 97 279 97
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LINEF 4 268 100 268 108
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; back pillars
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RECT 5 5 97 59 106 98 ; left back
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RECT 5 5 173 57 184 99 ; right back
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RECT 5 5 97 93 212 98 ; floor
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LINE 6 107 96 174 95 ; blue line
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; pool
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RECT 6 6 106 98 232 109 ; pool rectangle
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VTRI 6 106 98 83 106 109 ; pool l triangle
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VTRI 6 225 98 225 255 109 ; pool r triangle
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LINE 6 256 109 225 98 ; pool r triangle
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LINE 6 257 109 225 98 ; pool r triangle
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LINE 6 258 109 225 98 ; pool r triangle
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LINE 6 259 109 225 98 ; pool r triangle
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VTRI 6 95 96 60 74 109 ; l step
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VTRI 6 74 109 97 104 96 ; l step
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VTRI 5 74 109 104 107 96 ; orange step
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VTRI 5 104 98 74 82 109 ; orange step
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VTRI 5 96 94 65 72 104
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LINE 5 72 104 90 95 96
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; barrel
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DRECT 0x8 0x22 236 94 250 107 ; green barrel
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; carnage?
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RECT 2 5 118 100 139 105 ; ???
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; front pillars
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RECT 4 5 39 59 60 110 ; left front (shade)
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RECT 5 5 59 59 71 110 ; left front
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RECT 5 5 209 59 221 110 ; right front (shade)
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RECT 4 5 221 59 241 110 ; right front
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; ceiling
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RECT 4 0 0 0 140 60 ; ceiling left
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RECT 4 0 140 0 279 60 ; ceiling right
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LINE 7 279 59 0 59 ; border
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LINE 7 16 59 0 54 ; forward
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LINE 7 44 59 0 47
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LINE 7 69 59 0 38
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LINE 7 85 59 0 20
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LINE 7 110 59 32 0
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LINE 7 133 59 107 0
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LINE 7 152 59 183 0
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LINEF 7 179 59 258 0
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LINEF 7 197 59 279 22
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LINEF 7 219 59 279 37
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LINEF 7 239 59 279 47
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LINE 7 64 24 116 24 ; horiz front
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LINE 7 169 24 226 24 ; horiz front
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LINE 7 35 35 75 35 ; middle
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LINE 7 123 35 166 35 ; middle
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LINE 7 211 35 250 35 ; middle
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LINE 7 39 49 65 49
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LINE 7 98 49 127 49
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LINE 7 159 49 191 49
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LINE 7 221 49 248 49
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LINE 7 19 52 47 52 ; back
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LINE 7 72 52 102 52
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LINE 7 130 52 155 52
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LINE 7 188 52 212 52
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LINEF 7 236 52 262 52
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; floor hexes
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; front row
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LINE 7 0 160 46 146 ; left
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LINETO 72 147
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LINETO 86 160
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LINE 7 149 147 166 147
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LINETO 198 160
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LINETO 224 160
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LINETO 233 147
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LINEF 7 233 147 260 147
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LINEF 7 260 147 279 152
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; second row
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LINE 7 0 136 39 138
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LINETO 46 147
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LINE 7 70 147 99 136
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LINETO 122 139
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LINETO 134 145
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LINE 7 150 147 165 147
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LINETO 179 136
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LINETO 201 136
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LINETO 233 146
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LINEF 7 258 147 261 136
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LINEF 7 261 136 279 136
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; third row
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LINE 7 40 138 59 132
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LINETO 91 130
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LINETO 98 137
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LINE 7 122 137 139 131
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LINETO 160 131
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LINETO 178 137
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LINE 7 202 137 209 130
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LINETO 233 131
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LINEF 7 233 131 261 137
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; hand
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FCIRC 5 139 166 23 ; hand
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LINE 4 118 150 119 161 ; hand line
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VTRI 4 157 154 156 161 161 ; hand line
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LINE 4 126 148 127 153 ; hand line
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LINETO 135 157
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FCIRC 7 140 140 11 ; gun
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FCIRC 7 140 122 5 ; gun
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FCIRC 4 140 127 5 ; gun
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FCIRC 4 140 140 7 ; gun
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LINE 4 140 117 140 123 ; sight
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LINE 7 135 124 130 137 ;
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LINE 7 146 124 151 137
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END
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BIN
graphics/hgr/vgi/doom_e1m1.pt3
Normal file
BIN
graphics/hgr/vgi/doom_e1m1.pt3
Normal file
Binary file not shown.
424
graphics/hgr/vgi/doom_vgi.s
Normal file
424
graphics/hgr/vgi/doom_vgi.s
Normal file
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@ -0,0 +1,424 @@
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; VGI Doom
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.include "zp.inc"
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.include "hardware.inc"
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VGI_MAXLEN = 7
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PT3_LOC = doom_e1_m1
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PT3_ENABLE_APPLE_IIC = 1
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vgi_doom:
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; Init variables
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lda #0
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sta DONE_PLAYING
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lda #1
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sta LOOP ; loop forever
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;=======================
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; Detect Apple II Model
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;========================
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; IRQ setup is different on IIc
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; You can possibly skip this if you only care about II+/IIe
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.ifdef PT3_ENABLE_APPLE_IIC
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jsr detect_appleii_model
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.endif
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;=======================
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; Detect mockingboard
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;========================
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jsr print_mockingboard_detect ; print message
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jsr mockingboard_detect ; call detection routine
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bcs mockingboard_found
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jsr print_mocking_notfound
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; possibly can't detect on IIc so just try with slot#4 anyway
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; even if not detected
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jmp setup_interrupt
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mockingboard_found:
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; print found message
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; modify message to print slot value
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lda MB_ADDR_H
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sec
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sbc #$10
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sta found_message+11
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jsr print_mocking_found
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;==================================================
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; patch the playing code with the proper slot value
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;==================================================
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jsr mockingboard_patch
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setup_interrupt:
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;=======================
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; Set up 50Hz interrupt
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;========================
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jsr mockingboard_init
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jsr mockingboard_setup_interrupt
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;============================
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; Init the Mockingboard
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;============================
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jsr reset_ay_both
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jsr clear_ay_both
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;==================
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; init song
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;==================
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jsr pt3_init_song
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jsr SETGR
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jsr HGR
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; bit FULLGR
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jsr make_tables
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;============================
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; Enable 6502 interrupts
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;============================
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start_interrupts:
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cli ; clear interrupt mask
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; get pointer to image data
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lda #<doom_data
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sta VGIL
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lda #>doom_data
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sta VGIH
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; lda #<clock_data
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; sta VGIL
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; lda #>clock_data
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; sta VGIH
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jsr play_vgi
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jsr wait_until_keypress
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jsr CROUT1 ; print linefeed/cr
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loopy:
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lda #<string1
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sta OUTL
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lda #>string1
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sta OUTH
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jsr fake_input
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jsr fake_input
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jsr fake_input
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done:
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jmp done
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;==================================
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; play_vgi
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;==================================
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play_vgi:
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vgi_loop:
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ldy #0
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data_smc:
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lda (VGIL),Y
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sta VGI_BUFFER,Y
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iny
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cpy #VGI_MAXLEN
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bne data_smc
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lda TYPE
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and #$f
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clc
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adc VGIL
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sta VGIL
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bcc no_oflo
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inc VGIH
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no_oflo:
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lda TYPE
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lsr
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lsr
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lsr
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lsr
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; look up action in jump table
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asl
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tax
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lda vgi_rts_table+1,X
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pha
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lda vgi_rts_table,X
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pha
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rts ; "jump" to subroutine
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vgi_rts_table:
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.word vgi_clearscreen-1 ; 0 = clearscreen
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.word vgi_simple_rectangle-1 ; 1 = simple rectangle
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.word vgi_circle-1 ; 2 = plain circle
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.word vgi_filled_circle-1 ; 3 = filled circle
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.word vgi_point-1 ; 4 = dot
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.word vgi_lineto-1 ; 5 = line to
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.word vgi_dithered_rectangle-1 ; 6 = dithered rectangle
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.word vgi_vertical_triangle-1 ; 7 = vertical triangle
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.word vgi_horizontal_triangle-1 ; 8 = horizontal triangle
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.word vgi_vstripe_rectangle-1 ; 9 = vstripe rectangle
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.word vgi_line-1 ;10 = line
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.word vgi_line_far-1 ;11 = line far
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.word all_done-1
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.word all_done-1
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.word all_done-1
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.word all_done-1 ; 15 = done
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all_done:
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rts
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.include "vgi_clearscreen.s"
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.include "vgi_circles.s"
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.include "vgi_rectangle.s"
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.include "vgi_lines.s"
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.include "vgi_triangles.s"
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.include "doom.data"
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; string data
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;
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string1:
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.byte "YOU SEE A CLOCK TOWER READING 12:00",13
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.byte " LEFT/RIGHT/FORWARD",13,0
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; SWIM TO TOWER
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string2:
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.byte "YOU DON'T KNOW HOW TO ",34,"SWIM",34,13,0
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; WADE TO TOWER
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string3:
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.byte "THE KRAKEN WILL EAT YOU",13,0
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; I AM WILLING TO TAKE THAT RISK
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string4:
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.byte "YOU SEE A MYSTERIOUS SPACESHIP",13
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.byte " LEFT/RIGHT/FORWARD",13,0
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string5:
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.byte "YOU ARE CLOSE TO THE SPACESHIP",13
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.byte "YOU SEE A DOOR",13,0
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; OPEN DOOR
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string6:
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.byte "THE DOOR IS LOCKED",13
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.byte "ATRUS HATES YOU",13,0
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;string7:
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;.byte "SORRY, I DON'T UNDERSTAND THAT",0
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string7:
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.byte "YOU SEE A RED BOOK",13
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.byte "NEXT TO IT IS A PAGE",13,0
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string8:
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.byte "WHICH PAGE?",13,0
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string9:
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.byte "I'D SAY IT'S MORE OF A PURPLE COLOR",13,0
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string10:
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.byte "THIS IS A MOST UNUSUAL FIREPLACE",13
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.byte "THERE ARE MANY BUTTONS HERE",13,0
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string11:
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.byte "WHICH BUTTON?",13,0
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string12:
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.byte "THAT WAS NOT THE RIGHT ONE",13,0
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; PICK UP PAGE
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; WHICH PAGE?
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; THE RED ONE
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; I'D SAY IT'S MORE OF A PURPLE COLOR
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; JUST PICK IT UP!
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; THIS WEIRD FIREPLACE HAS MANY BUTTONS
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; PRESS BUTTON
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; WHICH ONE?
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; REALLY?
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; WHICH ONE (0..126)
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; NOTHING HAPPENS
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;=========================
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; print_string
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;=========================
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print_string:
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ldy #0
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print_string_loop:
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lda (OUTL),Y
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beq done_print_string
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ora #$80
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jsr COUT
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iny
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jmp print_string_loop
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done_print_string:
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tya ; point to next string
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sec
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adc OUTL
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sta OUTL
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lda OUTH
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adc #0
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sta OUTH
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rts
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;============================
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; WAIT UNTIL KEYPRESS
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;============================
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wait_until_keypress:
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lda KEYPRESS
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bpl wait_until_keypress
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bit KEYRESET
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rts
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;=============================
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; fake input
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;=============================
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fake_input:
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jsr print_string
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jsr CROUT1 ; print linefeed/cr
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lda #'>'+$80
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jsr COUT
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lda #' '+$80
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jsr COUT
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jsr GETLN1
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rts
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.ifdef PT3_ENABLE_APPLE_IIC
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.include "pt3_lib_detect_model.s"
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.endif
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.include "pt3_lib_core.s"
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||||
.include "pt3_lib_init.s"
|
||||
.include "pt3_lib_mockingboard_setup.s"
|
||||
.include "interrupt_handler.s"
|
||||
; if you're self patching, detect has to be after interrupt_handler.s
|
||||
.include "pt3_lib_mockingboard_detect.s"
|
||||
|
||||
|
||||
;==================================
|
||||
; Print mockingboard detect message
|
||||
;==================================
|
||||
; note: on IIc must do this before enabling interrupt
|
||||
; as we disable ROM (COUT won't work?)
|
||||
|
||||
print_mockingboard_detect:
|
||||
lda APPLEII_MODEL
|
||||
sta apple_message+17
|
||||
|
||||
; print detection message for Apple II type
|
||||
ldy #0
|
||||
print_apple_message:
|
||||
lda apple_message,Y ; load loading message
|
||||
beq done_apple_message
|
||||
ora #$80
|
||||
jsr COUT
|
||||
iny
|
||||
jmp print_apple_message
|
||||
done_apple_message:
|
||||
jsr CROUT1
|
||||
|
||||
|
||||
; print detection message
|
||||
ldy #0
|
||||
print_mocking_message:
|
||||
lda mocking_message,Y ; load loading message
|
||||
beq done_mocking_message
|
||||
ora #$80
|
||||
jsr COUT
|
||||
iny
|
||||
jmp print_mocking_message
|
||||
done_mocking_message:
|
||||
jsr CROUT1
|
||||
|
||||
rts
|
||||
|
||||
print_mocking_notfound:
|
||||
|
||||
ldy #0
|
||||
print_not_message:
|
||||
lda not_message,Y ; load loading message
|
||||
beq print_not_message_done
|
||||
ora #$80
|
||||
jsr COUT
|
||||
iny
|
||||
jmp print_not_message
|
||||
print_not_message_done:
|
||||
rts
|
||||
|
||||
print_mocking_found:
|
||||
ldy #0
|
||||
print_found_message:
|
||||
lda found_message,Y ; load loading message
|
||||
beq done_found_message
|
||||
ora #$80
|
||||
jsr COUT
|
||||
iny
|
||||
jmp print_found_message
|
||||
done_found_message:
|
||||
|
||||
rts
|
||||
|
||||
;=========
|
||||
; strings
|
||||
;=========
|
||||
apple_message: .asciiz "DETECTED APPLE II "
|
||||
|
||||
mocking_message: .asciiz "LOOKING FOR MOCKINGBOARD: "
|
||||
not_message: .byte "NOT "
|
||||
found_message: .asciiz "FOUND SLOT#4"
|
||||
|
||||
|
||||
|
||||
|
||||
.align $100
|
||||
doom_e1_m1:
|
||||
.incbin "doom_e1m1.pt3"
|
69
graphics/hgr/vgi/interrupt_handler.s
Normal file
69
graphics/hgr/vgi/interrupt_handler.s
Normal file
|
@ -0,0 +1,69 @@
|
|||
;================================
|
||||
;================================
|
||||
; mockingboard interrupt handler
|
||||
;================================
|
||||
;================================
|
||||
; On Apple II/6502 the interrupt handler jumps to address in 0xfffe
|
||||
; This is in the ROM, which saves the registers
|
||||
; on older IIe it saved A to $45 (which could mess with DISK II)
|
||||
; newer IIe doesn't do that.
|
||||
; It then calculates if it is a BRK or not (which trashes A)
|
||||
; Then it sets up the stack like an interrupt and calls 0x3fe
|
||||
|
||||
; Note: the IIc is much more complicated
|
||||
; its firmware tries to decode the proper source
|
||||
; based on various things, including screen hole values
|
||||
; we bypass that by switching out ROM and replacing the
|
||||
; $fffe vector with this, but that does mean we have
|
||||
; to be sure status flag and accumulator set properly
|
||||
|
||||
interrupt_handler:
|
||||
php ; save status flags
|
||||
cld ; clear decimal mode
|
||||
pha ; save A ; 3
|
||||
; A is saved in $45 by firmware
|
||||
txa
|
||||
pha ; save X
|
||||
tya
|
||||
pha ; save Y
|
||||
|
||||
|
||||
|
||||
; inc $0404 ; debug (flashes char onscreen)
|
||||
|
||||
|
||||
.include "pt3_lib_irq_handler.s"
|
||||
|
||||
jmp exit_interrupt
|
||||
|
||||
;=================================
|
||||
; Finally done with this interrupt
|
||||
;=================================
|
||||
|
||||
quiet_exit:
|
||||
stx DONE_PLAYING
|
||||
jsr clear_ay_both
|
||||
|
||||
ldx #$ff ; also mute the channel
|
||||
stx AY_REGISTERS+7 ; just in case
|
||||
|
||||
|
||||
exit_interrupt:
|
||||
|
||||
pla
|
||||
tay ; restore Y
|
||||
pla
|
||||
tax ; restore X
|
||||
pla ; restore a ; 4
|
||||
|
||||
; on II+/IIe (but not IIc) we need to do this?
|
||||
interrupt_smc:
|
||||
lda $45 ; restore A
|
||||
plp
|
||||
|
||||
rti ; return from interrupt ; 6
|
||||
|
||||
;============
|
||||
; typical
|
||||
; ???? cycles
|
||||
|
|
@ -13,6 +13,7 @@
|
|||
#define VGI_HORIZ_TRIANGLE 8
|
||||
#define VGI_VSTRIPE_RECTANGLE 9
|
||||
#define VGI_LINE 10
|
||||
#define VGI_LINE_FAR 11
|
||||
#define VGI_END 15
|
||||
|
||||
/* non-encoded pseudo-values */
|
||||
|
@ -55,6 +56,9 @@ int main(int argc, char **argv) {
|
|||
if (!strncmp(buffer,"LINETO",6)) {
|
||||
type=VGI_LINETO;
|
||||
}
|
||||
else if (!strncmp(buffer,"LINEF",5)) {
|
||||
type=VGI_LINE_FAR;
|
||||
}
|
||||
else if (!strncmp(buffer,"LINE",4)) {
|
||||
type=VGI_LINE;
|
||||
}
|
||||
|
@ -236,6 +240,28 @@ int main(int argc, char **argv) {
|
|||
size+=6;
|
||||
break;
|
||||
|
||||
case VGI_LINE_FAR: /* line */
|
||||
sscanf(buffer,"%*s %i %i %i %i %i",
|
||||
&color1,
|
||||
&x1,&y1,&x2,&y2);
|
||||
printf(".byte $%02X,",(type<<4)|6);
|
||||
if (x1>255) {
|
||||
x1=x1&0xff;
|
||||
color1|=128;
|
||||
}
|
||||
if (x2<256) {
|
||||
fprintf(stderr,"Error! X2 too small %d on line %d\n",x2,line);
|
||||
}
|
||||
x2=x2&0xff;
|
||||
printf("$%02X,",color1);
|
||||
printf("$%02X,",x1);
|
||||
printf("$%02X,",y1);
|
||||
printf("$%02X,",x2);
|
||||
printf("$%02X\n",y2);
|
||||
size+=6;
|
||||
break;
|
||||
|
||||
|
||||
case VGI_END: /* end */
|
||||
printf(".byte $FF\n");
|
||||
size+=1;
|
||||
|
|
|
@ -207,6 +207,7 @@ vgi_rts_table:
|
|||
.word vgi_horizontal_triangle-1 ; 8 = horizontal triangle
|
||||
.word vgi_vstripe_rectangle-1 ; 9 = vstripe rectangle
|
||||
.word vgi_line-1 ;10 = line
|
||||
.word vgi_line_far-1 ;11 = line far
|
||||
.word all_done-1
|
||||
.word all_done-1
|
||||
.word all_done-1
|
||||
|
|
1993
graphics/hgr/vgi/pt3_lib_core.s
Normal file
1993
graphics/hgr/vgi/pt3_lib_core.s
Normal file
File diff suppressed because it is too large
Load Diff
37
graphics/hgr/vgi/pt3_lib_detect_model.s
Normal file
37
graphics/hgr/vgi/pt3_lib_detect_model.s
Normal file
|
@ -0,0 +1,37 @@
|
|||
;===========================
|
||||
; Check for Apple IIc
|
||||
;===========================
|
||||
|
||||
|
||||
; ' ' ($20) = Apple II
|
||||
; '+' ($2B) = Apple II+
|
||||
; 'E' ($45) = Apple IIe
|
||||
; 'C' ($43) = Apple IIc
|
||||
; 'G' ($47) = Apple IIgs
|
||||
|
||||
; it does interrupts differently
|
||||
detect_appleii_model:
|
||||
lda #' '
|
||||
sta APPLEII_MODEL
|
||||
|
||||
lda $FBB3 ; IIe and newer is $06
|
||||
cmp #6
|
||||
beq apple_iie_or_newer
|
||||
|
||||
; TODO: check for II+
|
||||
|
||||
jmp done_apple_detect
|
||||
|
||||
apple_iie_or_newer:
|
||||
|
||||
; TODO: check for IIe
|
||||
|
||||
lda $FBC0 ; 0 on a IIc
|
||||
bne done_apple_detect
|
||||
apple_iic:
|
||||
lda #'C'
|
||||
sta APPLEII_MODEL
|
||||
|
||||
done_apple_detect:
|
||||
|
||||
rts
|
575
graphics/hgr/vgi/pt3_lib_init.s
Normal file
575
graphics/hgr/vgi/pt3_lib_init.s
Normal file
|
@ -0,0 +1,575 @@
|
|||
; pt3_lib_init.s
|
||||
|
||||
; Initialize a song
|
||||
|
||||
; this is done before song starts playing so it is not
|
||||
; as performance / timing critical
|
||||
|
||||
;====================================
|
||||
; pt3_init_song
|
||||
;====================================
|
||||
;
|
||||
pt3_init_song:
|
||||
|
||||
lda #$0
|
||||
sta DONE_SONG ; 3
|
||||
ldx #(end_vars-begin_vars)
|
||||
zero_song_structs_loop:
|
||||
dex
|
||||
sta note_a,X
|
||||
bne zero_song_structs_loop
|
||||
|
||||
sta pt3_noise_period_smc+1 ; 4
|
||||
sta pt3_noise_add_smc+1 ; 4
|
||||
|
||||
sta pt3_envelope_period_l_smc+1 ; 4
|
||||
sta pt3_envelope_period_h_smc+1 ; 4
|
||||
sta pt3_envelope_slide_l_smc+1 ; 4
|
||||
sta pt3_envelope_slide_h_smc+1 ; 4
|
||||
sta pt3_envelope_slide_add_l_smc+1 ; 4
|
||||
sta pt3_envelope_slide_add_h_smc+1 ; 4
|
||||
sta pt3_envelope_add_smc+1 ; 4
|
||||
sta pt3_envelope_type_smc+1 ; 4
|
||||
sta pt3_envelope_type_old_smc+1 ; 4
|
||||
sta pt3_envelope_delay_smc+1 ; 4
|
||||
sta pt3_envelope_delay_orig_smc+1 ; 4
|
||||
|
||||
sta PT3_MIXER_VAL ; 3
|
||||
|
||||
sta current_pattern_smc+1 ; 4
|
||||
sta current_line_smc+1 ; 4
|
||||
sta current_subframe_smc+1 ; 4
|
||||
|
||||
lda #$f ; 2
|
||||
sta note_a+NOTE_VOLUME ; 4
|
||||
sta note_b+NOTE_VOLUME ; 4
|
||||
sta note_c+NOTE_VOLUME ; 4
|
||||
|
||||
; default ornament/sample in A
|
||||
; X is zero coming in here
|
||||
;ldx #(NOTE_STRUCT_SIZE*0) ; 2
|
||||
jsr load_ornament0_sample1 ; 6+93
|
||||
|
||||
; default ornament/sample in B
|
||||
ldx #(NOTE_STRUCT_SIZE*1) ; 2
|
||||
jsr load_ornament0_sample1 ; 6+93
|
||||
|
||||
; default ornament/sample in C
|
||||
ldx #(NOTE_STRUCT_SIZE*2) ; 2
|
||||
jsr load_ornament0_sample1 ; 6+93
|
||||
|
||||
;=======================
|
||||
; load default speed
|
||||
|
||||
lda PT3_LOC+PT3_SPEED ; 4
|
||||
sta pt3_speed_smc+1 ; 4
|
||||
|
||||
;=======================
|
||||
; load loop
|
||||
|
||||
lda PT3_LOC+PT3_LOOP ; 4
|
||||
sta pt3_loop_smc+1 ; 4
|
||||
|
||||
|
||||
;========================
|
||||
;========================
|
||||
; set up note/freq table
|
||||
; this saves some space and makes things marginally faster longrun
|
||||
;========================
|
||||
;========================
|
||||
; note (heh) that there are separate tables if version 3.3
|
||||
; but we are going to assume we are only going to be playing
|
||||
; newer 3.4+ version files so only need the newer tables
|
||||
|
||||
ldx PT3_LOC+PT3_HEADER_FREQUENCY ; 4
|
||||
beq use_freq_table_0
|
||||
dex
|
||||
beq use_freq_table_1
|
||||
dex
|
||||
beq use_freq_table_2
|
||||
; fallthrough (freq table 3)
|
||||
|
||||
use_freq_table_3:
|
||||
;=================================================
|
||||
; Create Table #3, v4+, "PT3NoteTable_REAL_34_35"
|
||||
;=================================================
|
||||
|
||||
ldy #11 ; !2
|
||||
freq_table_3_copy_loop:
|
||||
; note, high lookup almost same as 2v4, just need to adjust one value
|
||||
|
||||
lda base2_v4_high,Y ; !3
|
||||
sta NoteTable_high,Y ; !3
|
||||
lda base3_low,Y ; !3
|
||||
sta NoteTable_low,Y ; !3
|
||||
dey ; !1
|
||||
bpl freq_table_3_copy_loop ; !2
|
||||
|
||||
dec NoteTable_high ; adjust to right value
|
||||
|
||||
jsr NoteTablePropogate ; !3
|
||||
|
||||
lda #<table3_v4_adjust
|
||||
sta note_table_adjust_smc+1
|
||||
lda #>table3_v4_adjust
|
||||
sta note_table_adjust_smc+2
|
||||
|
||||
jsr NoteTableAdjust
|
||||
|
||||
jmp done_set_freq_table
|
||||
|
||||
|
||||
|
||||
use_freq_table_2:
|
||||
;=================================================
|
||||
; Create Table #2, v4+, "PT3NoteTable_ASM_34_35"
|
||||
;=================================================
|
||||
|
||||
ldy #11
|
||||
freq_table_2_copy_loop:
|
||||
lda base2_v4_high,Y
|
||||
sta NoteTable_high,Y
|
||||
lda base2_v4_low,Y
|
||||
sta NoteTable_low,Y
|
||||
dey
|
||||
bpl freq_table_2_copy_loop
|
||||
|
||||
jsr NoteTablePropogate ; !3
|
||||
|
||||
lda #<table2_v4_adjust
|
||||
sta note_table_adjust_smc+1
|
||||
lda #>table2_v4_adjust
|
||||
sta note_table_adjust_smc+2
|
||||
|
||||
jsr NoteTableAdjust
|
||||
|
||||
jmp done_set_freq_table
|
||||
|
||||
use_freq_table_1:
|
||||
;=================================================
|
||||
; Create Table #1, "PT3NoteTable_ST"
|
||||
;=================================================
|
||||
|
||||
ldy #11
|
||||
freq_table_1_copy_loop:
|
||||
lda base1_high,Y
|
||||
sta NoteTable_high,Y
|
||||
lda base1_low,Y
|
||||
sta NoteTable_low,Y
|
||||
dey
|
||||
bpl freq_table_1_copy_loop
|
||||
|
||||
jsr NoteTablePropogate ; !3
|
||||
|
||||
; last adjustments
|
||||
lda #$FD ; Tone[23]=$3FD
|
||||
sta NoteTable_low+23
|
||||
dec NoteTable_low+46 ; Tone[46]-=1;
|
||||
|
||||
|
||||
jmp done_set_freq_table
|
||||
|
||||
|
||||
use_freq_table_0:
|
||||
;=================================================
|
||||
; Create Table #0, "PT3NoteTable_PT_34_35"
|
||||
;=================================================
|
||||
|
||||
ldy #11
|
||||
freq_table_0_copy_loop:
|
||||
lda base0_v4_high,Y
|
||||
sta NoteTable_high,Y
|
||||
lda base0_v4_low,Y
|
||||
sta NoteTable_low,Y
|
||||
dey
|
||||
bpl freq_table_0_copy_loop
|
||||
|
||||
jsr NoteTablePropogate ; !3
|
||||
|
||||
lda #<table0_v4_adjust
|
||||
sta note_table_adjust_smc+1
|
||||
lda #>table0_v4_adjust
|
||||
sta note_table_adjust_smc+2
|
||||
|
||||
jsr NoteTableAdjust
|
||||
|
||||
|
||||
done_set_freq_table:
|
||||
|
||||
|
||||
;======================
|
||||
; calculate version
|
||||
ldx #6 ; 2
|
||||
lda PT3_LOC+PT3_VERSION ; 4
|
||||
sec ; 2
|
||||
sbc #'0' ; 2
|
||||
cmp #9 ; 2
|
||||
bcs not_ascii_number ; bge ; 2/3
|
||||
tax ; 2
|
||||
|
||||
not_ascii_number:
|
||||
|
||||
; adjust version<6 SMC code in the slide code
|
||||
|
||||
; FIXME: I am sure there's a more clever way to do this
|
||||
|
||||
lda #$2C ; BIT ; 2
|
||||
cpx #$6 ; 2
|
||||
bcs version_greater_than_or_equal_6 ; bgt ; 3
|
||||
; less than 6, jump
|
||||
; also carry is known to be clear
|
||||
adc #$20 ; BIT->JMP 2C->4C ; 2
|
||||
version_greater_than_or_equal_6:
|
||||
sta version_smc ; 4
|
||||
|
||||
pick_volume_table:
|
||||
|
||||
;=======================
|
||||
; Pick which volume number, based on version
|
||||
|
||||
; if (PlParams.PT3.PT3_Version <= 4)
|
||||
|
||||
cpx #5 ; 2
|
||||
|
||||
; carry clear = 3.3/3.4 table
|
||||
; carry set = 3.5 table
|
||||
|
||||
;==========================
|
||||
; VolTableCreator
|
||||
;==========================
|
||||
; Creates the appropriate volume table
|
||||
; based on z80 code by Ivan Roshin ZXAYHOBETA/VTII10bG.asm
|
||||
;
|
||||
|
||||
; Called with carry==0 for 3.3/3.4 table
|
||||
; Called with carry==1 for 3.5 table
|
||||
|
||||
; 177f-1932 = 435 bytes, not that much better than 512 of lookup
|
||||
|
||||
|
||||
VolTableCreator:
|
||||
|
||||
; Init initial variables
|
||||
lda #$0
|
||||
sta z80_d_smc+1
|
||||
ldy #$11
|
||||
|
||||
; Set up self modify
|
||||
|
||||
ldx #$2A ; ROL for self-modify
|
||||
bcs vol_type_35
|
||||
|
||||
vol_type_33:
|
||||
|
||||
; For older table, we set initial conditions a bit
|
||||
; different
|
||||
|
||||
dey
|
||||
tya
|
||||
|
||||
ldx #$ea ; NOP for self modify
|
||||
|
||||
vol_type_35:
|
||||
sty z80_l_smc+1 ; l=16 or 17
|
||||
sta z80_e_smc+1 ; e=16 or 0
|
||||
stx vol_smc ; set the self-modify code
|
||||
|
||||
ldy #16 ; skip first row, all zeros
|
||||
ldx #16 ; c=16
|
||||
vol_outer:
|
||||
clc ; add HL,DE
|
||||
z80_l_smc:
|
||||
lda #$d1
|
||||
z80_e_smc:
|
||||
adc #$d1
|
||||
sta z80_e_smc+1
|
||||
lda #0
|
||||
z80_d_smc:
|
||||
adc #$d1
|
||||
sta z80_d_smc+1 ; carry is important
|
||||
|
||||
; sbc hl,hl
|
||||
lda #0
|
||||
adc #$ff
|
||||
eor #$ff
|
||||
|
||||
vol_write:
|
||||
sta z80_h_smc+1
|
||||
pha
|
||||
|
||||
vol_inner:
|
||||
pla
|
||||
pha
|
||||
|
||||
vol_smc:
|
||||
nop ; nop or ROL depending
|
||||
|
||||
z80_h_smc:
|
||||
lda #$d1
|
||||
|
||||
adc #$0 ; a=a+carry;
|
||||
|
||||
sta VolumeTable,Y
|
||||
iny
|
||||
|
||||
pla ; add HL,DE
|
||||
adc z80_e_smc+1
|
||||
pha
|
||||
lda z80_h_smc+1
|
||||
adc z80_d_smc+1
|
||||
sta z80_h_smc+1
|
||||
|
||||
inx ; inc C
|
||||
txa ; a=c
|
||||
and #$f
|
||||
bne vol_inner
|
||||
|
||||
|
||||
pla
|
||||
|
||||
lda z80_e_smc+1 ; a=e
|
||||
cmp #$77
|
||||
bne vol_m3
|
||||
|
||||
inc z80_e_smc+1
|
||||
|
||||
vol_m3:
|
||||
txa ; a=c
|
||||
bne vol_outer
|
||||
|
||||
vol_done:
|
||||
rts
|
||||
|
||||
|
||||
;=========================================
|
||||
; copy note table seed to proper location
|
||||
;=========================================
|
||||
|
||||
; faster inlined
|
||||
|
||||
;NoteTableCopy:
|
||||
|
||||
; ldy #11 ; !2
|
||||
;note_table_copy_loop:
|
||||
;ntc_smc1:
|
||||
; lda base1_high,Y ; !3
|
||||
; sta NoteTable_high,Y ; !3
|
||||
;ntc_smc2:
|
||||
; lda base1_low,Y ; !3
|
||||
; sta NoteTable_low,Y ; !3
|
||||
; dey ; !1
|
||||
; bpl note_table_copy_loop ; !2
|
||||
; rts ; !1
|
||||
|
||||
|
||||
;==========================================
|
||||
; propogate the freq down, dividing by two
|
||||
;==========================================
|
||||
NoteTablePropogate:
|
||||
|
||||
ldy #0
|
||||
note_table_propogate_loop:
|
||||
clc
|
||||
lda NoteTable_high,Y
|
||||
ror
|
||||
sta NoteTable_high+12,Y
|
||||
|
||||
lda NoteTable_low,Y
|
||||
ror
|
||||
sta NoteTable_low+12,Y
|
||||
|
||||
iny
|
||||
cpy #84
|
||||
bne note_table_propogate_loop
|
||||
|
||||
rts
|
||||
|
||||
|
||||
;================================================
|
||||
; propogation isn't enough, various values
|
||||
; are often off by one, so adjust using a bitmask
|
||||
;================================================
|
||||
NoteTableAdjust:
|
||||
|
||||
ldx #0
|
||||
note_table_adjust_outer:
|
||||
|
||||
note_table_adjust_smc:
|
||||
lda table0_v4_adjust,X
|
||||
sta PT3_TEMP
|
||||
|
||||
; reset smc
|
||||
lda #<NoteTable_low
|
||||
sta ntl_smc+1
|
||||
lda #>NoteTable_low
|
||||
sta ntl_smc+2
|
||||
|
||||
|
||||
ldy #7
|
||||
note_table_adjust_inner:
|
||||
ror PT3_TEMP
|
||||
bcc note_table_skip_adjust
|
||||
|
||||
ntl_smc:
|
||||
inc NoteTable_low,X
|
||||
|
||||
note_table_skip_adjust:
|
||||
clc
|
||||
lda #12
|
||||
adc ntl_smc+1
|
||||
sta ntl_smc+1
|
||||
lda #0
|
||||
adc ntl_smc+2 ; unnecessary if aligned
|
||||
sta ntl_smc+2
|
||||
|
||||
skip_adjust_done:
|
||||
dey
|
||||
bpl note_table_adjust_inner
|
||||
|
||||
inx
|
||||
cpx #12
|
||||
bne note_table_adjust_outer
|
||||
|
||||
rts
|
||||
|
||||
|
||||
;base0_v3_high:
|
||||
;.byte $0C,$0B,$0A,$0A,$09,$09,$08,$08,$07,$07,$06,$06
|
||||
;base0_v3_low:
|
||||
;.byte $21,$73,$CE,$33,$A0,$16,$93,$18,$A4,$36,$CE,$6D
|
||||
|
||||
; note: same as base0_v3_high
|
||||
base0_v4_high:
|
||||
.byte $0C,$0B,$0A,$0A,$09,$09,$08,$08,$07,$07,$06,$06
|
||||
base0_v4_low:
|
||||
.byte $22,$73,$CF,$33,$A1,$17,$94,$19,$A4,$37,$CF,$6D
|
||||
|
||||
base1_high:
|
||||
.byte $0E,$0E,$0D,$0C,$0B,$0B,$0A,$09,$09,$08,$08,$07
|
||||
base1_low:
|
||||
.byte $F8,$10,$60,$80,$D8,$28,$88,$F0,$60,$E0,$58,$E0
|
||||
|
||||
;base2_v3_high:
|
||||
;.byte $0D,$0C,$0B,$0B,$0A,$09,$09,$08,$08,$07,$07,$07
|
||||
;base2_v3_low:
|
||||
;.byte $3E,$80,$CC,$22,$82,$EC,$5C,$D6,$58,$E0,$6E,$04
|
||||
|
||||
; note almost same as above
|
||||
base2_v4_high:
|
||||
.byte $0D,$0C,$0B,$0A,$0A,$09,$09,$08,$08,$07,$07,$06
|
||||
base2_v4_low:
|
||||
.byte $10,$55,$A4,$FC,$5F,$CA,$3D,$B8,$3B,$C5,$55,$EC
|
||||
|
||||
; note almost same as above
|
||||
;base3_high:
|
||||
;.byte $0C,$0C,$0B,$0A,$0A,$09,$09,$08,$08,$07,$07,$06
|
||||
base3_low:
|
||||
.byte $DA,$22,$73,$CF,$33,$A1,$17,$94,$19,$A4,$37,$CF
|
||||
|
||||
|
||||
; Adjustment factors
|
||||
table0_v4_adjust:
|
||||
.byte $40,$e6,$9c,$66,$40,$2c,$20,$30,$48,$6c,$1c,$5a
|
||||
|
||||
table2_v4_adjust:
|
||||
.byte $20,$a8,$40,$f8,$bc,$90,$78,$70,$74,$08,$2a,$50
|
||||
|
||||
table3_v4_adjust:
|
||||
.byte $B4,$40,$e6,$9c,$66,$40,$2c,$20,$30,$48,$6c,$1c
|
||||
|
||||
|
||||
; Table #1 of Pro Tracker 3.3x - 3.5x
|
||||
;PT3NoteTable_ST_high:
|
||||
;.byte $0E,$0E,$0D,$0C,$0B,$0B,$0A,$09
|
||||
;.byte $09,$08,$08,$07,$07,$07,$06,$06
|
||||
;.byte $05,$05,$05,$04,$04,$04,$04,$03
|
||||
;.byte $03,$03,$03,$03,$02,$02,$02,$02
|
||||
;.byte $02,$02,$02,$01,$01,$01,$01,$01
|
||||
;.byte $01,$01,$01,$01,$01,$01,$01,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
|
||||
;PT3NoteTable_ST_low:
|
||||
;.byte $F8,$10,$60,$80,$D8,$28,$88,$F0
|
||||
;.byte $60,$E0,$58,$E0,$7C,$08,$B0,$40
|
||||
;.byte $EC,$94,$44,$F8,$B0,$70,$2C,$FD
|
||||
;.byte $BE,$84,$58,$20,$F6,$CA,$A2,$7C
|
||||
;.byte $58,$38,$16,$F8,$DF,$C2,$AC,$90
|
||||
;.byte $7B,$65,$51,$3E,$2C,$1C,$0A,$FC
|
||||
;.byte $EF,$E1,$D6,$C8,$BD,$B2,$A8,$9F
|
||||
;.byte $96,$8E,$85,$7E,$77,$70,$6B,$64
|
||||
;.byte $5E,$59,$54,$4F,$4B,$47,$42,$3F
|
||||
;.byte $3B,$38,$35,$32,$2F,$2C,$2A,$27
|
||||
;.byte $25,$23,$21,$1F,$1D,$1C,$1A,$19
|
||||
;.byte $17,$16,$15,$13,$12,$11,$10,$0F
|
||||
|
||||
|
||||
; Table #2 of Pro Tracker 3.4x - 3.5x
|
||||
;PT3NoteTable_ASM_34_35_high:
|
||||
;.byte $0D,$0C,$0B,$0A,$0A,$09,$09,$08
|
||||
;.byte $08,$07,$07,$06,$06,$06,$05,$05
|
||||
;.byte $05,$04,$04,$04,$04,$03,$03,$03
|
||||
;.byte $03,$03,$02,$02,$02,$02,$02,$02
|
||||
;.byte $02,$01,$01,$01,$01,$01,$01,$01
|
||||
;.byte $01,$01,$01,$01,$01,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
;.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
|
||||
;PT3NoteTable_ASM_34_35_low:
|
||||
;.byte $10,$55,$A4,$FC,$5F,$CA,$3D,$B8
|
||||
;.byte $3B,$C5,$55,$EC,$88,$2A,$D2,$7E
|
||||
;.byte $2F,$E5,$9E,$5C,$1D,$E2,$AB,$76
|
||||
;.byte $44,$15,$E9,$BF,$98,$72,$4F,$2E
|
||||
;.byte $0F,$F1,$D5,$BB,$A2,$8B,$74,$60
|
||||
;.byte $4C,$39,$28,$17,$07,$F9,$EB,$DD
|
||||
;.byte $D1,$C5,$BA,$B0,$A6,$9D,$94,$8C
|
||||
;.byte $84,$7C,$75,$6F,$69,$63,$5D,$58
|
||||
;.byte $53,$4E,$4A,$46,$42,$3E,$3B,$37
|
||||
;.byte $34,$31,$2F,$2C,$29,$27,$25,$23
|
||||
;.byte $21,$1F,$1D,$1C,$1A,$19,$17,$16
|
||||
;.byte $15,$14,$12,$11,$10,$0F,$0E,$0D
|
||||
|
||||
|
||||
;PT3VolumeTable_33_34:
|
||||
;.byte $0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0
|
||||
;.byte $0,$0,$0,$0,$0,$0,$0,$0,$1,$1,$1,$1,$1,$1,$1,$1
|
||||
;.byte $0,$0,$0,$0,$0,$0,$1,$1,$1,$1,$1,$2,$2,$2,$2,$2
|
||||
;.byte $0,$0,$0,$0,$1,$1,$1,$1,$2,$2,$2,$2,$3,$3,$3,$3
|
||||
;.byte $0,$0,$0,$0,$1,$1,$1,$2,$2,$2,$3,$3,$3,$4,$4,$4
|
||||
;.byte $0,$0,$0,$1,$1,$1,$2,$2,$3,$3,$3,$4,$4,$4,$5,$5
|
||||
;.byte $0,$0,$0,$1,$1,$2,$2,$3,$3,$3,$4,$4,$5,$5,$6,$6
|
||||
;.byte $0,$0,$1,$1,$2,$2,$3,$3,$4,$4,$5,$5,$6,$6,$7,$7
|
||||
;.byte $0,$0,$1,$1,$2,$2,$3,$3,$4,$5,$5,$6,$6,$7,$7,$8
|
||||
;.byte $0,$0,$1,$1,$2,$3,$3,$4,$5,$5,$6,$6,$7,$8,$8,$9
|
||||
;.byte $0,$0,$1,$2,$2,$3,$4,$4,$5,$6,$6,$7,$8,$8,$9,$A
|
||||
;.byte $0,$0,$1,$2,$3,$3,$4,$5,$6,$6,$7,$8,$9,$9,$A,$B
|
||||
;.byte $0,$0,$1,$2,$3,$4,$4,$5,$6,$7,$8,$8,$9,$A,$B,$C
|
||||
;.byte $0,$0,$1,$2,$3,$4,$5,$6,$7,$7,$8,$9,$A,$B,$C,$D
|
||||
;.byte $0,$0,$1,$2,$3,$4,$5,$6,$7,$8,$9,$A,$B,$C,$D,$E
|
||||
;.byte $0,$1,$2,$3,$4,$5,$6,$7,$8,$9,$A,$B,$C,$D,$E,$F
|
||||
|
||||
;PT3VolumeTable_35:
|
||||
;.byte $0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0,$0
|
||||
;.byte $0,$0,$0,$0,$0,$0,$0,$0,$1,$1,$1,$1,$1,$1,$1,$1
|
||||
;.byte $0,$0,$0,$0,$1,$1,$1,$1,$1,$1,$1,$1,$2,$2,$2,$2
|
||||
;.byte $0,$0,$0,$1,$1,$1,$1,$1,$2,$2,$2,$2,$2,$3,$3,$3
|
||||
;.byte $0,$0,$1,$1,$1,$1,$2,$2,$2,$2,$3,$3,$3,$3,$4,$4
|
||||
;.byte $0,$0,$1,$1,$1,$2,$2,$2,$3,$3,$3,$4,$4,$4,$5,$5
|
||||
;.byte $0,$0,$1,$1,$2,$2,$2,$3,$3,$4,$4,$4,$5,$5,$6,$6
|
||||
;.byte $0,$0,$1,$1,$2,$2,$3,$3,$4,$4,$5,$5,$6,$6,$7,$7
|
||||
;.byte $0,$1,$1,$2,$2,$3,$3,$4,$4,$5,$5,$6,$6,$7,$7,$8
|
||||
;.byte $0,$1,$1,$2,$2,$3,$4,$4,$5,$5,$6,$7,$7,$8,$8,$9
|
||||
;.byte $0,$1,$1,$2,$3,$3,$4,$5,$5,$6,$7,$7,$8,$9,$9,$A
|
||||
;.byte $0,$1,$1,$2,$3,$4,$4,$5,$6,$7,$7,$8,$9,$A,$A,$B
|
||||
;.byte $0,$1,$2,$2,$3,$4,$5,$6,$6,$7,$8,$9,$A,$A,$B,$C
|
||||
;.byte $0,$1,$2,$3,$3,$4,$5,$6,$7,$8,$9,$A,$A,$B,$C,$D
|
||||
;.byte $0,$1,$2,$3,$4,$5,$6,$7,$7,$8,$9,$A,$B,$C,$D,$E
|
||||
;.byte $0,$1,$2,$3,$4,$5,$6,$7,$8,$9,$A,$B,$C,$D,$E,$F
|
117
graphics/hgr/vgi/pt3_lib_irq_handler.s
Normal file
117
graphics/hgr/vgi/pt3_lib_irq_handler.s
Normal file
|
@ -0,0 +1,117 @@
|
|||
|
||||
|
||||
pt3_irq_handler:
|
||||
|
||||
pt3_irq_smc1:
|
||||
bit MOCK_6522_T1CL ; clear 6522 interrupt by reading T1C-L ; 4
|
||||
|
||||
lda DONE_PLAYING ; 3
|
||||
beq pt3_play_music ; if song done, don't play music ; 3/2nt
|
||||
jmp done_pt3_irq_handler ; 3
|
||||
;============
|
||||
; 13
|
||||
|
||||
pt3_play_music:
|
||||
|
||||
; decode a frame of music
|
||||
|
||||
jsr pt3_make_frame
|
||||
|
||||
; handle song over condition
|
||||
lda DONE_SONG
|
||||
beq mb_write_frame ; if not done, continue
|
||||
|
||||
lda LOOP ; see if looping
|
||||
beq move_to_next
|
||||
|
||||
pt3_loop_smc:
|
||||
lda #$d1 ; looping, move to loop location
|
||||
; non-zero to avoid the temptation
|
||||
; to merge with following lda #$0
|
||||
sta current_pattern_smc+1
|
||||
lda #$0
|
||||
sta current_line_smc+1
|
||||
sta current_subframe_smc+1
|
||||
sta DONE_SONG ; undo the next song
|
||||
|
||||
; beq done_pt3_irq_handler ; branch always
|
||||
beq pt3_play_music ; branch always
|
||||
|
||||
move_to_next:
|
||||
; same as "press right"
|
||||
ldx #$20
|
||||
jmp quiet_exit
|
||||
|
||||
;======================================
|
||||
; Write frames to Mockingboard
|
||||
;======================================
|
||||
; for speed could merge this into
|
||||
; the decode code
|
||||
|
||||
mb_write_frame:
|
||||
|
||||
|
||||
tax ; set up reg count ; 2
|
||||
;============
|
||||
; 2
|
||||
|
||||
;==================================
|
||||
; loop through the 14 registers
|
||||
; reading the value, then write out
|
||||
;==================================
|
||||
|
||||
mb_write_loop:
|
||||
lda AY_REGISTERS,X ; load register value ; 4
|
||||
|
||||
; special case R13. If it is 0xff, then don't update
|
||||
; otherwise might spuriously reset the envelope settings
|
||||
|
||||
cpx #13 ; 2
|
||||
bne mb_not_13 ; 3/2nt
|
||||
cmp #$ff ; 2
|
||||
beq mb_skip_13 ; 3/2nt
|
||||
;============
|
||||
; typ 5
|
||||
mb_not_13:
|
||||
|
||||
|
||||
; address
|
||||
pt3_irq_smc2:
|
||||
stx MOCK_6522_ORA1 ; put address on PA1 ; 4
|
||||
stx MOCK_6522_ORA2 ; put address on PA2 ; 4
|
||||
ldy #MOCK_AY_LATCH_ADDR ; latch_address for PB1 ; 2
|
||||
pt3_irq_smc3:
|
||||
sty MOCK_6522_ORB1 ; latch_address on PB1 ; 4
|
||||
sty MOCK_6522_ORB2 ; latch_address on PB2 ; 4
|
||||
ldy #MOCK_AY_INACTIVE ; go inactive ; 2
|
||||
pt3_irq_smc4:
|
||||
sty MOCK_6522_ORB1 ; 4
|
||||
sty MOCK_6522_ORB2 ; 4
|
||||
|
||||
; value
|
||||
pt3_irq_smc5:
|
||||
sta MOCK_6522_ORA1 ; put value on PA1 ; 4
|
||||
sta MOCK_6522_ORA2 ; put value on PA2 ; 4
|
||||
lda #MOCK_AY_WRITE ; ; 2
|
||||
pt3_irq_smc6:
|
||||
sta MOCK_6522_ORB1 ; write on PB1 ; 4
|
||||
sty MOCK_6522_ORB1 ; 4
|
||||
pt3_irq_smc7:
|
||||
sta MOCK_6522_ORB2 ; write on PB2 ; 4
|
||||
sty MOCK_6522_ORB2 ; 4
|
||||
;===========
|
||||
; 56
|
||||
mb_no_write:
|
||||
inx ; point to next register ; 2
|
||||
cpx #14 ; if 14 we're done ; 2
|
||||
bmi mb_write_loop ; otherwise, loop ; 3/2nt
|
||||
;============
|
||||
; 7
|
||||
mb_skip_13:
|
||||
|
||||
|
||||
;=================================
|
||||
; Finally done with this interrupt
|
||||
;=================================
|
||||
|
||||
done_pt3_irq_handler:
|
334
graphics/hgr/vgi/pt3_lib_mockingboard_detect.s
Normal file
334
graphics/hgr/vgi/pt3_lib_mockingboard_detect.s
Normal file
|
@ -0,0 +1,334 @@
|
|||
;===================================================================
|
||||
; code to detect mockingboard
|
||||
;===================================================================
|
||||
; this isn't always easy
|
||||
; my inclination is to just assume slot #4 but that isn't always realistic
|
||||
|
||||
; code below based on "hw.mockingboard.a" from "Total Replay"
|
||||
|
||||
;license:MIT
|
||||
; By Andrew Roughan
|
||||
; in the style of 4am for Total Replay
|
||||
;
|
||||
; Mockingboard support functions
|
||||
;
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; HasMockingboard
|
||||
; detect Mockingboard card by searching for 6522 timers across all slots
|
||||
; access 6522 timers with deterministic cycle counts
|
||||
;
|
||||
; based on prior art in Mockingboard Developers Toolkit
|
||||
; with optimisation from deater/french touch
|
||||
; also takes into account FastChip //e clock difference
|
||||
;
|
||||
; in: none
|
||||
; accelerators should be off
|
||||
; out: C set if Mockingboard found in any slot
|
||||
; if card was found, X = #$Cn where n is the slot number of the card
|
||||
; C clear if no Mockingboard found
|
||||
; other flags clobbered
|
||||
; zp $65-$67 clobbered
|
||||
; A/Y clobbered
|
||||
;------------------------------------------------------------------------------
|
||||
|
||||
mockingboard_detect:
|
||||
|
||||
; activate IIc mockingboard?
|
||||
; this might only be necessary to allow detection
|
||||
; I get the impression the Mockingboard 4c activates
|
||||
; when you access any of the 6522 ports in Slot 4
|
||||
|
||||
.ifdef PT3_ENABLE_APPLE_IIC
|
||||
lda APPLEII_MODEL
|
||||
cmp #'C'
|
||||
bne not_iic
|
||||
|
||||
lda #$ff
|
||||
|
||||
; don't bother patching these, IIc mockingboard always slot 4?
|
||||
|
||||
sta MOCK_6522_DDRA1
|
||||
sta MOCK_6522_T1CL
|
||||
.endif
|
||||
|
||||
not_iic:
|
||||
lda #$00
|
||||
sta MB_ADDR_L
|
||||
ldx #$C7 ; start at slot #7
|
||||
mb_slot_loop:
|
||||
stx MB_ADDR_H
|
||||
ldy #$04 ; 6522 #1 $Cx04
|
||||
jsr mb_timer_check
|
||||
bne mb_next_slot
|
||||
ldy #$84 ; 6522 #2 $Cx84
|
||||
jsr mb_timer_check
|
||||
bne mb_next_slot
|
||||
mb_found:
|
||||
sec ; found
|
||||
rts
|
||||
|
||||
mb_next_slot:
|
||||
dex
|
||||
cpx #$C0
|
||||
bne mb_slot_loop
|
||||
|
||||
clc ; not found
|
||||
rts
|
||||
|
||||
mb_timer_check:
|
||||
lda (MB_ADDR_L),Y ; read 6522 timer low byte
|
||||
sta MB_VALUE
|
||||
lda (MB_ADDR_L),Y ; second time
|
||||
sec
|
||||
sbc MB_VALUE
|
||||
cmp #$F8 ; looking for (-)8 cycles between reads
|
||||
beq mb_timer_check_done
|
||||
cmp #$F7 ; FastChip //e clock is different
|
||||
mb_timer_check_done:
|
||||
rts
|
||||
|
||||
|
||||
|
||||
;===================================================================
|
||||
; code to patch mockingboard if not in slot#4
|
||||
;===================================================================
|
||||
; this is the brute force version, we have to patch 39 locations
|
||||
; see further below if you want to try a smaller, more dangerous, patch
|
||||
|
||||
.if 0
|
||||
mockingboard_patch:
|
||||
|
||||
lda MB_ADDR_H
|
||||
|
||||
sta pt3_irq_smc1+2 ; 1
|
||||
|
||||
sta pt3_irq_smc2+2 ; 2
|
||||
sta pt3_irq_smc2+5 ; 3
|
||||
|
||||
sta pt3_irq_smc3+2 ; 4
|
||||
sta pt3_irq_smc3+5 ; 5
|
||||
|
||||
sta pt3_irq_smc4+2 ; 6
|
||||
sta pt3_irq_smc4+5 ; 7
|
||||
|
||||
sta pt3_irq_smc5+2 ; 8
|
||||
sta pt3_irq_smc5+5 ; 9
|
||||
|
||||
sta pt3_irq_smc6+2 ; 10
|
||||
sta pt3_irq_smc6+5 ; 11
|
||||
|
||||
sta pt3_irq_smc7+2 ; 12
|
||||
sta pt3_irq_smc7+5 ; 13
|
||||
|
||||
sta mock_init_smc1+2 ; 14
|
||||
sta mock_init_smc1+5 ; 15
|
||||
|
||||
sta mock_init_smc2+2 ; 16
|
||||
sta mock_init_smc2+5 ; 17
|
||||
|
||||
sta reset_ay_smc1+2 ; 18
|
||||
sta reset_ay_smc2+2 ; 19
|
||||
sta reset_ay_smc3+2 ; 20
|
||||
sta reset_ay_smc4+2 ; 21
|
||||
|
||||
sta write_ay_smc1+2 ; 22
|
||||
sta write_ay_smc1+5 ; 23
|
||||
|
||||
sta write_ay_smc2+2 ; 24
|
||||
sta write_ay_smc2+5 ; 25
|
||||
|
||||
sta write_ay_smc3+2 ; 26
|
||||
sta write_ay_smc3+5 ; 27
|
||||
|
||||
sta write_ay_smc4+2 ; 28
|
||||
sta write_ay_smc4+5 ; 29
|
||||
|
||||
sta write_ay_smc5+2 ; 30
|
||||
sta write_ay_smc5+5 ; 31
|
||||
|
||||
sta write_ay_smc6+2 ; 32
|
||||
sta write_ay_smc6+5 ; 33
|
||||
|
||||
sta setup_irq_smc1+2 ; 34
|
||||
sta setup_irq_smc2+2 ; 35
|
||||
sta setup_irq_smc3+2 ; 36
|
||||
sta setup_irq_smc4+2 ; 37
|
||||
sta setup_irq_smc5+2 ; 38
|
||||
sta setup_irq_smc6+2 ; 39
|
||||
|
||||
rts
|
||||
.endif
|
||||
|
||||
;===================================================================
|
||||
; dangerous code to patch mockingboard if not in slot#4
|
||||
;===================================================================
|
||||
; this code patches any $C4 value to the proper slot# if not slot4
|
||||
; this can be dangerous, it might over-write other important values
|
||||
; that should be $C4
|
||||
|
||||
; safer ways to do this:
|
||||
; only do this if 2 bytes after a LDA/STA/LDX/STX
|
||||
; count total and if not 39 then print error message
|
||||
|
||||
mockingboard_patch:
|
||||
; from mockingboard_init $1BBF
|
||||
; to done_pt3_irq_handler $1D85
|
||||
|
||||
ldx MB_ADDR_H
|
||||
ldy #0
|
||||
|
||||
lda #<mockingboard_init
|
||||
sta MB_ADDR_L
|
||||
lda #>mockingboard_init
|
||||
sta MB_ADDR_H
|
||||
|
||||
mb_patch_loop:
|
||||
lda (MB_ADDR_L),Y
|
||||
cmp #$C4
|
||||
bne mb_patch_nomatch
|
||||
|
||||
txa
|
||||
sta (MB_ADDR_L),Y
|
||||
mb_patch_nomatch:
|
||||
|
||||
inc MB_ADDR_L
|
||||
lda MB_ADDR_L
|
||||
bne mb_patch_oflo
|
||||
inc MB_ADDR_H
|
||||
|
||||
mb_patch_oflo:
|
||||
lda MB_ADDR_H
|
||||
cmp #>done_pt3_irq_handler
|
||||
bne mb_patch_loop
|
||||
lda MB_ADDR_L
|
||||
cmp #<done_pt3_irq_handler
|
||||
bne mb_patch_loop
|
||||
|
||||
mb_patch_done:
|
||||
rts
|
||||
|
||||
.if 0
|
||||
|
||||
|
||||
;=======================================
|
||||
; Detect a Mockingboard card
|
||||
;=======================================
|
||||
; Based on code from the French Touch "Pure Noise" Demo
|
||||
; Attempts to time an instruction sequence with a 6522
|
||||
;
|
||||
; If found, puts in bMB
|
||||
; MB_ADDRL:MB_ADDRH has address of Mockingboard
|
||||
; returns X=0 if not found, X=1 if found
|
||||
|
||||
mockingboard_detect:
|
||||
lda #0
|
||||
sta MB_ADDRL
|
||||
|
||||
mb_detect_loop: ; self-modifying
|
||||
lda #$07 ; we start in slot 7 ($C7) and go down to 0 ($C0)
|
||||
ora #$C0 ; make it start with C
|
||||
sta MB_ADDRH
|
||||
ldy #04 ; $CX04
|
||||
ldx #02 ; 2 tries?
|
||||
mb_check_cycle_loop:
|
||||
lda (MB_ADDRL),Y ; timer 6522 (Low Order Counter)
|
||||
; count down
|
||||
sta PT3_TEMP ; 3 cycles
|
||||
lda (MB_ADDRL),Y ; + 5 cycles = 8 cycles
|
||||
; between the two accesses to the timer
|
||||
sec
|
||||
sbc PT3_TEMP ; subtract to see if we had 8 cycles
|
||||
cmp #$f8 ; -8
|
||||
bne mb_not_in_this_slot
|
||||
dex ; decrement, try one more time
|
||||
bne mb_check_cycle_loop ; loop detection
|
||||
inx ; Mockingboard found (X=1)
|
||||
done_mb_detect:
|
||||
;stx bMB ; store result to bMB
|
||||
rts ; return
|
||||
|
||||
mb_not_in_this_slot:
|
||||
dec mb_detect_loop+1 ; decrement the "slot" (self_modify)
|
||||
bne mb_detect_loop ; loop down to one
|
||||
ldx #00
|
||||
beq done_mb_detect
|
||||
|
||||
;alternative MB detection from Nox Archaist
|
||||
; lda #$04
|
||||
; sta MB_ADDRL
|
||||
; ldx #$c7
|
||||
;
|
||||
;find_mb:
|
||||
; stx MB_ADDRH
|
||||
;
|
||||
; ;detect sound I
|
||||
;
|
||||
; sec
|
||||
; ldy #$00
|
||||
; lda (MB_ADDRL), y
|
||||
; sbc (MB_ADDRL), y
|
||||
; cmp #$05
|
||||
; beq found_mb
|
||||
; dex
|
||||
; cpx #$c0
|
||||
; bne find_mb
|
||||
; ldx #$00 ;no mockingboard found
|
||||
; rts
|
||||
;
|
||||
;found_mb:
|
||||
; ldx #$01 ;mockingboard found
|
||||
; rts
|
||||
;
|
||||
; ;optionally detect sound II
|
||||
;
|
||||
; sec
|
||||
; ldy #$80
|
||||
; lda (MB_ADDRL), y
|
||||
; sbc (MB_ADDRL), y
|
||||
; cmp #$05
|
||||
; beq found_mb
|
||||
|
||||
|
||||
;=======================================
|
||||
; Detect a Mockingboard card in Slot4
|
||||
;=======================================
|
||||
; Based on code from the French Touch "Pure Noise" Demo
|
||||
; Attempts to time an instruction sequence with a 6522
|
||||
;
|
||||
; MB_ADDRL:MB_ADDRH has address of Mockingboard
|
||||
; returns X=0 if not found, X=1 if found
|
||||
|
||||
mockingboard_detect_slot4:
|
||||
lda #0
|
||||
sta MB_ADDRL
|
||||
|
||||
mb4_detect_loop: ; self-modifying
|
||||
lda #$04 ; we're only looking in Slot 4
|
||||
ora #$C0 ; make it start with C
|
||||
sta MB_ADDRH
|
||||
ldy #04 ; $CX04
|
||||
ldx #02 ; 2 tries?
|
||||
mb4_check_cycle_loop:
|
||||
lda (MB_ADDRL),Y ; timer 6522 (Low Order Counter)
|
||||
; count down
|
||||
sta PT3_TEMP ; 3 cycles
|
||||
lda (MB_ADDRL),Y ; + 5 cycles = 8 cycles
|
||||
; between the two accesses to the timer
|
||||
sec
|
||||
sbc PT3_TEMP ; subtract to see if we had 8 cycles
|
||||
cmp #$f8 ; -8
|
||||
bne mb4_not_in_this_slot
|
||||
dex ; decrement, try one more time
|
||||
bne mb4_check_cycle_loop ; loop detection
|
||||
inx ; Mockingboard found (X=1)
|
||||
done_mb4_detect:
|
||||
rts ; return
|
||||
|
||||
mb4_not_in_this_slot:
|
||||
ldx #00
|
||||
beq done_mb4_detect
|
||||
|
||||
|
||||
|
||||
.endif
|
277
graphics/hgr/vgi/pt3_lib_mockingboard_setup.s
Normal file
277
graphics/hgr/vgi/pt3_lib_mockingboard_setup.s
Normal file
|
@ -0,0 +1,277 @@
|
|||
; Mockingboad programming:
|
||||
; + Has two 6522 I/O chips connected to two AY-3-8910 chips
|
||||
; + Optionally has some speech chips controlled via the outport on the AY
|
||||
; + Often in slot 4
|
||||
; TODO: how to auto-detect?
|
||||
; References used:
|
||||
; http://macgui.com/usenet/?group=2&id=8366
|
||||
; 6522 Data Sheet
|
||||
; AY-3-8910 Data Sheet
|
||||
|
||||
;========================
|
||||
; Mockingboard card
|
||||
; Essentially two 6522s hooked to the Apple II bus
|
||||
; Connected to AY-3-8910 chips
|
||||
; PA0-PA7 on 6522 connected to DA0-DA7 on AY
|
||||
; PB0 on 6522 connected to BC1
|
||||
; PB1 on 6522 connected to BDIR
|
||||
; PB2 on 6522 connected to RESET
|
||||
|
||||
|
||||
; left speaker
|
||||
MOCK_6522_ORB1 = $C400 ; 6522 #1 port b data
|
||||
MOCK_6522_ORA1 = $C401 ; 6522 #1 port a data
|
||||
MOCK_6522_DDRB1 = $C402 ; 6522 #1 data direction port B
|
||||
MOCK_6522_DDRA1 = $C403 ; 6522 #1 data direction port A
|
||||
MOCK_6522_T1CL = $C404 ; 6522 #1 t1 low order latches
|
||||
MOCK_6522_T1CH = $C405 ; 6522 #1 t1 high order counter
|
||||
MOCK_6522_T1LL = $C406 ; 6522 #1 t1 low order latches
|
||||
MOCK_6522_T1LH = $C407 ; 6522 #1 t1 high order latches
|
||||
MOCK_6522_T2CL = $C408 ; 6522 #1 t2 low order latches
|
||||
MOCK_6522_T2CH = $C409 ; 6522 #1 t2 high order counters
|
||||
MOCK_6522_SR = $C40A ; 6522 #1 shift register
|
||||
MOCK_6522_ACR = $C40B ; 6522 #1 auxilliary control register
|
||||
MOCK_6522_PCR = $C40C ; 6522 #1 peripheral control register
|
||||
MOCK_6522_IFR = $C40D ; 6522 #1 interrupt flag register
|
||||
MOCK_6522_IER = $C40E ; 6522 #1 interrupt enable register
|
||||
MOCK_6522_ORANH = $C40F ; 6522 #1 port a data no handshake
|
||||
|
||||
|
||||
; right speaker
|
||||
MOCK_6522_ORB2 = $C480 ; 6522 #2 port b data
|
||||
MOCK_6522_ORA2 = $C481 ; 6522 #2 port a data
|
||||
MOCK_6522_DDRB2 = $C482 ; 6522 #2 data direction port B
|
||||
MOCK_6522_DDRA2 = $C483 ; 6522 #2 data direction port A
|
||||
|
||||
; AY-3-8910 commands on port B
|
||||
; RESET BDIR BC1
|
||||
MOCK_AY_RESET = $0 ; 0 0 0
|
||||
MOCK_AY_INACTIVE = $4 ; 1 0 0
|
||||
MOCK_AY_READ = $5 ; 1 0 1
|
||||
MOCK_AY_WRITE = $6 ; 1 1 0
|
||||
MOCK_AY_LATCH_ADDR = $7 ; 1 1 1
|
||||
|
||||
|
||||
;========================
|
||||
; Mockingboard Init
|
||||
;========================
|
||||
; Initialize the 6522s
|
||||
; set the data direction for all pins of PortA/PortB to be output
|
||||
|
||||
mockingboard_init:
|
||||
lda #$ff ; all output (1)
|
||||
|
||||
mock_init_smc1:
|
||||
sta MOCK_6522_DDRB1
|
||||
sta MOCK_6522_DDRA1
|
||||
mock_init_smc2:
|
||||
sta MOCK_6522_DDRB2
|
||||
sta MOCK_6522_DDRA2
|
||||
rts
|
||||
|
||||
;===================================
|
||||
;===================================
|
||||
; Reset Both AY-3-8910s
|
||||
;===================================
|
||||
;===================================
|
||||
|
||||
;======================
|
||||
; Reset Left AY-3-8910
|
||||
;======================
|
||||
reset_ay_both:
|
||||
lda #MOCK_AY_RESET
|
||||
reset_ay_smc1:
|
||||
sta MOCK_6522_ORB1
|
||||
lda #MOCK_AY_INACTIVE
|
||||
reset_ay_smc2:
|
||||
sta MOCK_6522_ORB1
|
||||
|
||||
;======================
|
||||
; Reset Right AY-3-8910
|
||||
;======================
|
||||
;reset_ay_right:
|
||||
;could be merged with both
|
||||
lda #MOCK_AY_RESET
|
||||
reset_ay_smc3:
|
||||
sta MOCK_6522_ORB2
|
||||
lda #MOCK_AY_INACTIVE
|
||||
reset_ay_smc4:
|
||||
sta MOCK_6522_ORB2
|
||||
rts
|
||||
|
||||
|
||||
; Write sequence
|
||||
; Inactive -> Latch Address -> Inactive -> Write Data -> Inactive
|
||||
|
||||
;=========================================
|
||||
; Write Right/Left to save value AY-3-8910
|
||||
;=========================================
|
||||
; register in X
|
||||
; value in MB_VALUE
|
||||
|
||||
write_ay_both:
|
||||
; address
|
||||
|
||||
write_ay_smc1:
|
||||
stx MOCK_6522_ORA1 ; put address on PA1 ; 4
|
||||
stx MOCK_6522_ORA2 ; put address on PA2 ; 4
|
||||
lda #MOCK_AY_LATCH_ADDR ; latch_address on PB1 ; 2
|
||||
write_ay_smc2:
|
||||
sta MOCK_6522_ORB1 ; latch_address on PB1 ; 4
|
||||
sta MOCK_6522_ORB2 ; latch_address on PB2 ; 4
|
||||
ldy #MOCK_AY_INACTIVE ; go inactive ; 2
|
||||
write_ay_smc3:
|
||||
sty MOCK_6522_ORB1 ; 4
|
||||
sty MOCK_6522_ORB2 ; 4
|
||||
;===========
|
||||
; 28
|
||||
; value
|
||||
lda MB_VALUE ; 3
|
||||
write_ay_smc4:
|
||||
sta MOCK_6522_ORA1 ; put value on PA1 ; 4
|
||||
sta MOCK_6522_ORA2 ; put value on PA2 ; 4
|
||||
lda #MOCK_AY_WRITE ; ; 2
|
||||
write_ay_smc5:
|
||||
sta MOCK_6522_ORB1 ; write on PB1 ; 4
|
||||
sta MOCK_6522_ORB2 ; write on PB2 ; 4
|
||||
write_ay_smc6:
|
||||
sty MOCK_6522_ORB1 ; 4
|
||||
sty MOCK_6522_ORB2 ; 4
|
||||
;===========
|
||||
; 29
|
||||
|
||||
rts ; 6
|
||||
;===========
|
||||
; 63
|
||||
write_ay_both_end:
|
||||
;.assert >write_ay_both = >write_ay_both_end, error, "write_ay_both crosses page"
|
||||
|
||||
;=======================================
|
||||
; clear ay -- clear all 14 AY registers
|
||||
; should silence the card
|
||||
;=======================================
|
||||
; 7+(74*14)+5=1048
|
||||
clear_ay_both:
|
||||
ldx #13 ; 2
|
||||
lda #0 ; 2
|
||||
sta MB_VALUE ; 3
|
||||
clear_ay_left_loop:
|
||||
jsr write_ay_both ; 6+63
|
||||
dex ; 2
|
||||
bpl clear_ay_left_loop ; 3
|
||||
; -1
|
||||
rts ; 6
|
||||
|
||||
clear_ay_end:
|
||||
;.assert >clear_ay_both = >clear_ay_end, error, "clear_ay_both crosses page"
|
||||
|
||||
;=============================
|
||||
; Setup
|
||||
;=============================
|
||||
mockingboard_setup_interrupt:
|
||||
|
||||
.ifdef PT3_ENABLE_APPLE_IIC
|
||||
lda APPLEII_MODEL
|
||||
cmp #'C'
|
||||
bne done_iic_hack
|
||||
|
||||
; bypass the firmware interrupt handler
|
||||
; should we do this on IIe too? probably faster
|
||||
|
||||
; first we have to copy the ROM to the language card
|
||||
|
||||
sei ; disable interrupts
|
||||
|
||||
|
||||
|
||||
copy_rom_loop:
|
||||
lda $c089 ; read ROM, write RAM1
|
||||
lda $c089
|
||||
|
||||
ldy #0
|
||||
read_rom_loop:
|
||||
lda $D000,Y
|
||||
sta $400,Y ; note this uses text page as
|
||||
; temporary data store
|
||||
iny
|
||||
bne read_rom_loop
|
||||
|
||||
lda $c08B ; read/write RAM1
|
||||
lda $c08B ;
|
||||
|
||||
write_rom_loop:
|
||||
lda $400,Y
|
||||
sta $D000,Y
|
||||
iny
|
||||
bne write_rom_loop
|
||||
|
||||
inc read_rom_loop+2
|
||||
inc write_rom_loop+5
|
||||
bne copy_rom_loop
|
||||
|
||||
lda #<interrupt_handler
|
||||
sta $fffe
|
||||
lda #>interrupt_handler
|
||||
sta $ffff
|
||||
|
||||
lda #$EA ; nop out the "lda $45" in the irq handler
|
||||
sta interrupt_smc
|
||||
sta interrupt_smc+1
|
||||
.endif
|
||||
|
||||
done_iic_hack:
|
||||
|
||||
|
||||
;=========================
|
||||
; Setup Interrupt Handler
|
||||
;=========================
|
||||
; Vector address goes to 0x3fe/0x3ff
|
||||
; FIXME: should chain any existing handler
|
||||
|
||||
lda #<interrupt_handler
|
||||
sta $03fe
|
||||
lda #>interrupt_handler
|
||||
sta $03ff
|
||||
|
||||
;============================
|
||||
; Enable 50Hz clock on 6522
|
||||
;============================
|
||||
|
||||
|
||||
; Note, on Apple II the clock isn't 1MHz but is actually closer to
|
||||
; roughly 1.023MHz, and every 65th clock is stretched (it's complicated)
|
||||
|
||||
; 4fe7 / 1.023e6 = .020s, 50Hz
|
||||
; 9c40 / 1.023e6 = .040s, 25Hz
|
||||
; 411a / 1.023e6 = .016s, 60Hz
|
||||
|
||||
; French Touch uses
|
||||
; 4e20 / 1.000e6 = .020s, 50Hz, which assumes 1MHz clock freq
|
||||
|
||||
sei ; disable interrupts just in case
|
||||
|
||||
lda #$40 ; Continuous interrupts, don't touch PB7
|
||||
setup_irq_smc1:
|
||||
sta MOCK_6522_ACR ; ACR register
|
||||
lda #$7F ; clear all interrupt flags
|
||||
setup_irq_smc2:
|
||||
sta MOCK_6522_IER ; IER register (interrupt enable)
|
||||
|
||||
lda #$C0
|
||||
setup_irq_smc3:
|
||||
sta MOCK_6522_IFR ; IFR: 1100, enable interrupt on timer one oflow
|
||||
setup_irq_smc4:
|
||||
sta MOCK_6522_IER ; IER: 1100, enable timer one interrupt
|
||||
|
||||
lda #$E7
|
||||
; lda #$20
|
||||
setup_irq_smc5:
|
||||
sta MOCK_6522_T1CL ; write into low-order latch
|
||||
lda #$4f
|
||||
; lda #$4E
|
||||
setup_irq_smc6:
|
||||
sta MOCK_6522_T1CH ; write into high-order latch,
|
||||
; load both values into counter
|
||||
; clear interrupt and start counting
|
||||
|
||||
rts
|
|
@ -72,3 +72,24 @@ vgi_line:
|
|||
jsr HGLIN ; line to (X,A),(Y)
|
||||
|
||||
jmp vgi_loop
|
||||
|
||||
;========================
|
||||
; VGI LINE FAR
|
||||
;========================
|
||||
; assume second x-coord is > 256
|
||||
; VGI_LX = P0
|
||||
; VGI_LY = P1
|
||||
; VGI_LX2 = P3
|
||||
; VGI_LY2 = P4
|
||||
|
||||
vgi_line_far:
|
||||
jsr vgi_point_common
|
||||
|
||||
ldx #1
|
||||
ldy VGI_LY2
|
||||
lda VGI_LX2
|
||||
|
||||
jsr HGLIN ; line to (X,A),(Y)
|
||||
|
||||
jmp vgi_loop
|
||||
|
||||
|
|
|
@ -1,5 +1,43 @@
|
|||
; zero page
|
||||
|
||||
;; Zero page addresses
|
||||
|
||||
ORNAMENT_L = $60
|
||||
ORNAMENT_H = $61
|
||||
SAMPLE_L = $62
|
||||
SAMPLE_H = $63
|
||||
|
||||
LOOP = $64
|
||||
MB_ADDR_L = $65
|
||||
MB_ADDR_H = $66
|
||||
MB_VALUE = $67
|
||||
DONE_PLAYING = $68
|
||||
DONE_SONG = $69
|
||||
PT3_TEMP = $6A
|
||||
APPLEII_MODEL = $6B
|
||||
|
||||
AY_REGISTERS = $50
|
||||
A_FINE_TONE = $50
|
||||
A_COARSE_TONE = $51
|
||||
B_FINE_TONE = $52
|
||||
B_COARSE_TONE = $53
|
||||
C_FINE_TONE = $54
|
||||
C_COARSE_TONE = $55
|
||||
NOISE = $56
|
||||
ENABLE = $57
|
||||
PT3_MIXER_VAL = $57
|
||||
A_VOLUME = $58
|
||||
B_VOLUME = $59
|
||||
C_VOLUME = $5A
|
||||
ENVELOPE_FINE = $5B
|
||||
ENVELOPE_COARSE = $5C
|
||||
ENVELOPE_SHAPE = $5D
|
||||
|
||||
PATTERN_L = $5E
|
||||
PATTERN_H = $5F
|
||||
|
||||
|
||||
|
||||
HGR_X = $E0
|
||||
HGR_XH = $E1
|
||||
HGR_Y = $E2
|
||||
|
|
37
music/pt3_lib/pt3_lib_detect_model.s
Normal file
37
music/pt3_lib/pt3_lib_detect_model.s
Normal file
|
@ -0,0 +1,37 @@
|
|||
;===========================
|
||||
; Check for Apple IIc
|
||||
;===========================
|
||||
|
||||
|
||||
; ' ' ($20) = Apple II
|
||||
; '+' ($2B) = Apple II+
|
||||
; 'E' ($45) = Apple IIe
|
||||
; 'C' ($43) = Apple IIc
|
||||
; 'G' ($47) = Apple IIgs
|
||||
|
||||
; it does interrupts differently
|
||||
detect_appleii_model:
|
||||
lda #' '
|
||||
sta APPLEII_MODEL
|
||||
|
||||
lda $FBB3 ; IIe and newer is $06
|
||||
cmp #6
|
||||
beq apple_iie_or_newer
|
||||
|
||||
; TODO: check for II+
|
||||
|
||||
jmp done_apple_detect
|
||||
|
||||
apple_iie_or_newer:
|
||||
|
||||
; TODO: check for IIe
|
||||
|
||||
lda $FBC0 ; 0 on a IIc
|
||||
bne done_apple_detect
|
||||
apple_iic:
|
||||
lda #'C'
|
||||
sta APPLEII_MODEL
|
||||
|
||||
done_apple_detect:
|
||||
|
||||
rts
|
Loading…
Reference in New Issue
Block a user