2021-09-19 04:01:26 +00:00
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Notes
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~~~~~
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Some people would like actual S.A.M. support like the original game,
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but that takes 9kB! Is there room in TROGDOR for that?
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2021-08-14 17:03:58 +00:00
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Memory Map
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~~~~~~~~~~
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2021-08-14 19:01:59 +00:00
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; notes -- VID_LOGO loads title at $9000 - $AFFF
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2021-08-14 17:03:58 +00:00
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$00 Zero Page
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2021-08-14 19:45:03 +00:00
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$01 Stack
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$02 Disk Lookup
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$03 Disk Lookup, IRQ vectors
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2021-08-14 17:03:58 +00:00
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$04-$07 Text/GR page 1 (not used?)
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2021-08-14 19:45:03 +00:00
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$08-$0B Text/GR page 2. $08=boot, $09-$0A = qboot stage2
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$0B-$1F QLOAD disk routines and Mockingboard sound routines here
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2021-08-14 17:03:58 +00:00
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$20-$3F HGR Page 1
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$40-$5f HGR Page 2
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$60-$?? Programs (roughly 22k available?)
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$B8-$BB Hi-res lookup tables
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$BC-$BF ???
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$C0-$CF I/O
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$D0-$FF ROM
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2021-09-19 04:01:26 +00:00
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Disk1 Map (disk has 35 tracks, each 4k in size)
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2021-08-14 17:03:58 +00:00
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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T 0 = Qboot
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2021-08-16 05:31:49 +00:00
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T 1 = QLOAD 4813 bytes 19S = 1T3S
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2021-08-14 19:01:59 +00:00
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T 3 = VID_LOGO 6911 bytes 27S = 1T11S
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T 5 = TITLE 9662 bytes 38S = 2T6S
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2021-08-16 05:31:49 +00:00
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T 8 = INTRO 16040 bytes 63S = 3T15S
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T 12 = COPY_CHECK 4922 bytes 20S = 1T4S
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2021-08-18 04:29:23 +00:00
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T 14 = PEASANT1 22501 bytes 79S = 4T15S ; 88 is max?
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T 19 = PEASANT2 ; 79 = 20224
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T 24 = PEASANT3
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T 29 = PEASANT4
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2021-08-13 02:45:18 +00:00
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2021-09-19 04:01:26 +00:00
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Disk2 Map (disk has 35 tracks, each 4k in size)
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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T 19 = TROGDOR 13673 bytes
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T 24 = ENDING 19690 bytes 77S = 4T13S
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2021-08-13 02:45:18 +00:00
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238, to 280 (6)
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50 to 135 (85) 6*85=510
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2021-08-09 05:21:58 +00:00
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280x192
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*4
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1120x768
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Our capture: 300x142 roughly
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292x142 to center it
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Odd is Orange
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Even is blue
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EO EO EO EO EO if draw black at odd, nothing
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blue 10 10 10 10 10 if draw black at even, two-wide(?) black
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10 10 10 10 10 blue
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01 01 01 01 01 orange
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EO EO
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10 01 blue->orange has black gap
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01 10 orange->blue has white gap
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10 10 01 01 = blue
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6|----c>>>-----------c------c-------|
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5|-aaa----aaab>>>aaa---a-b-a---------|
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2021-09-02 02:42:57 +00:00
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46, XRUN=2
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46/7= 6R4 ; RUN of 0=1 wide, run of 1=2 wide
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start at 4, end at 5
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start at 4 (left) = $F0 1111 0000
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end at 5 (Right) = $BF 1011 1111
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=========
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x011 0000
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OR them!!!!
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left_masks:
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.byte $FF,$FE,$FC,$F8, $F0,$E0,$C0
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right_masks:
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.byte $81,$83,$87, $8F,$9F,$BF,$FF
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