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git-svn-id: https://svn.code.sf.net/p/acme-crossass/code-0/trunk@117 4df02467-bbd4-4a76-a152-e7ce94205b78
216 lines
9.1 KiB
Plaintext
216 lines
9.1 KiB
Plaintext
;ACME 0.96.4
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!ifdef lib_cbm_264_ted_a !eof
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lib_cbm_264_ted_a = 1
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; Text Display (TED) 7360/8360
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; Definitions:
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; HiRes: High resolution (320x200 pixels, two colors per 8x8 block)
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; MCM: Multi-color mode (160x200 pixels, four colors per 4x8 block)
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; Text mode: Pixel data is taken from charset, index/color/luminance is
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; taken from video ram.
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; Bitmap mode: Pixel data is taken from 8 KiB bitmap, color/luminance is taken
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; from video ram.
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; ECM: Extended color mode. Like HiRes text mode, but instead of 256
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; different characters on a shared background color, 64 different
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; characters on four different background colors are displayed.
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; MC text mode is actually a mixed mode: each character position has its own
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; bit to decide whether it is displayed in HiRes or MC.
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; info taken from
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; http://mclauchlan.site.net.au/scott/C=Hacking/C-Hacking12/gfx.html (Document Revision B)
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; http://www.zimmers.net/anonftp/pub/cbm/maps/C16.MemoryMap
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; Video RAM is $0800 bytes
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; in text mode:
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; first $0400 bytes is color/luminance info:
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; %7....... flash (ignored in MCM and ECM)
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; %.654.... luminance
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; %....3... MCM: multicolor flag
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; %.....210 MCM: color
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; %....3210 HiRes and ECM: color
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; second $0400 bytes hold screen codes:
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; %76543210 HiRes and MCM: screen code (in HiRes, bit 7 can
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; be configured to be "hardware reverse",
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; see register $ff07)
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; %76...... ECM: background color index (see registers
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; $ff15..$ff18)
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; %..543210 ECM: screen code
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; in bitmap mode:
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; CAUTION!
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; LOW nibble of luma corresponds to HIGH nibble of color and vice versa!
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; first $0400 bytes is luminance info:
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; %7....... unused
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; %.654.... luminance of %0 HiRes pixels or %01 MC pixels
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; %....3... unused
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; %.....210 luminance of %1 HiRes pixels or %10 MC pixels
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; second $0400 bytes is color info:
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; %7654.... color of %1 pixels or %10 MC pixels
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; %....3210 color of %0 pixels or %01 MC pixels
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; colors:
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tedcolor_BLACK = $0 ; ignores luminance, black is always black!
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tedcolor_WHITE = $1 ; actually gray, only max luminance gives white
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tedcolor_RED = $2
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tedcolor_CYAN = $3
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tedcolor_PURPLE = $4
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tedcolor_GREEN = $5
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tedcolor_BLUE = $6
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tedcolor_YELLOW = $7 ; needs high luminance to look yellow...
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; these cannot be used as main color in MCM:
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tedcolor_ORANGE = $8
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tedcolor_BROWN = $9
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tedcolor_YELLOWGREEN = $a
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tedcolor_PINK = $b
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tedcolor_BLUEGREEN = $c
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tedcolor_LIGHTBLUE = $d
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tedcolor_DARKBLUE = $e
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tedcolor_LIGHTGREEN = $f
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; the color names are somewhat useless, because they refer not to the sixteen
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; base colors, but to the sixteen pre-defined luminance/color combinations
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; available by pressing the ctrl or cbm key with a digit key (see the ROM table
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; at $e143 for these combined values).
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; for a "nice" color display, use this order: 2,8,9,7,a,f,5,c,3,d,6,e,4,b,
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; that will give a red/yellow/green/blue/purple spectrum.
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; to display the whole palette, try this program:
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; 10 for i = 0 to 15:color 1, 1
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; 20 read c$:print " " c$ " ";
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; 30 poke 194, 128:for lu = 0 to 7
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; 40 color 1, dec(c$) + 1, lu
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; 50 print " ";
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; 60 next:print:next:color 1, 1
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; 70 data 0,1,2,8,9,7,a,f
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; 80 data 5,c,3,d,6,e,4,b
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; TED registers
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!addr ted_base = $ff00
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; timers
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ted_timer1_lo = ted_base + $00 ; decrements from the last value written into it
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ted_timer1_hi = ted_base + $01
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ted_timer2_lo = ted_base + $02 ; runs freely from $ffff
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ted_timer2_hi = ted_base + $03
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ted_timer3_lo = ted_base + $04 ; runs freely from $ffff
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ted_timer3_hi = ted_base + $05
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; mode bits
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ted_vertctrl = ted_base + $06 ; mostly the same as VIC's $d011
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tedvert_TEST = %#....... ; internal test, it should be 0
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tedvert_EBCM = %.#...... ; extended background color mode
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tedvert_BITMAP = %..#..... ; bitmap mode
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tedvert_ENABLE = %...#.... ; display enable (0: blank screen)
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tedvert_25ROWS = %....#... ; 0: 24 rows, 1: 25 rows
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tedvert_SMOOTH = %.....### ; vertical smooth scroll (std: %011, higher values move text down)
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ted_horzctrl = ted_base + $07 ; most similar VIC-reg is $d016
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tedhorz_256CHRS = %#....... ; 0: 128 characters and hardware reverse, 1: 256 characters
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tedhorz_NTSC = %.#...... ; 0: PAL, 1: NTSC
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tedhorz_FREEZE = %..#..... ; if set, TED stops its counters and screen-generating, only single clock and refresh cycles remain.
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tedhorz_MULTI = %...#.... ; multicolor mode
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tedhorz_40COLS = %....#... ; 0: 38 columns, 1: 40 columns
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tedhorz_SMOOTH = %.....### ; horizontal smooth scroll (std: %000, higher values move text right)
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; i/o
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ted_keyboard = ted_base + $08 ; keyboard input latch (write to trigger sampling, then read input byte)
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; to scan keyboard, write output byte to $fd30, then write $ff here (to disable joysticks) and read input byte.
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; to scan joysticks, write $ff to $fd30 (to disable keyboard), then write SELECT value here and read input byte.
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tedjoy1_SELECT = %#####.## ; d2 low selects joy #1
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tedjoy2_SELECT = %######.# ; d1 low selects joy #2
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; CAUTION, the joystick bits are low-active, so invert input byte before using these:
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tedjoy2_FIRE = %#.......
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tedjoy1_FIRE = %.#......
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tedjoy_RIGHT = %....#...
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tedjoy_LEFT = %.....#..
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tedjoy_DOWN = %......#.
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tedjoy_UP = %.......#
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; interrupts
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ted_irq = ted_base + $09 ; interrupt request register
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; if bit is set, interrupt has occurred.
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; to acknowledge interrupts, write back the value read from this register
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; (setting bits clears them, i.e. writing $82 clears ACTIVE and RASTER
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; but does not change the COUNTER bits)
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tedirq_ACTIVE = %#....... ; 1: TED is signalling interrupt to cpu
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tedirq_COUNTER3 = %.#...... ; 1: counter #3 underflow
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; %..#..... ; always 1 (unused)
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tedirq_COUNTER2 = %...#.... ; 1: counter #2 underflow
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tedirq_COUNTER1 = %....#... ; 1: counter #1 underflow
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; %.....#.. ; always 1 (light pen, not implemented)
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tedirq_RASTER = %......#. ; 1: raster line reached
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; %.......# ; always 1 (unused)
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ted_mask = ted_base + $0a ; interrupt mask register (enable/disable)
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; if bit is set, interrupt is enabled.
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; use the tedirq_* constants from above.
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; %#....... ; always 1 (unused)
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;COUNTER3 = %.#...... ; 1: enable counter #3 underflow interrupt
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; = %..#..... ; always 1 (unused)
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;COUNTER2 = %...#.... ; 1: enable counter #2 underflow interrupt
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;COUNTER1 = %....#... ; 1: enable counter #1 underflow interrupt
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; = %.....#.. ; always 1 (light pen, not implemented)
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;RASTER = %......#. ; 1: enable raster line interrupt
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tedmask_LINEBIT8= %.......# ; bit 8 of raster line register $ff0b (see below)
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ted_line = ted_base + $0b ; raster line to trigger interrupt. bit 8 is in bit 0 of $ff0a (see above)
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; hardware cursor, given as screen offset (0...999). use 1000 or greater to hide.
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ted_hwcursor_hi = ted_base + $0c ; %765432.. are unused, %......10 are MSBs of hw cursor offset
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ted_hwcursor_lo = ted_base + $0d ; hardware cursor offset (low byte)
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; sound
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; to calculate the register values:
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; NTSC: reg = 1024 - (111860.781 / frequency_in_Hz)
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; PAL: reg = 1024 - (111840.45 / frequency_in_Hz)
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ted_sound1_low = ted_base + $0e ; low 8 bits of voice #1 frequency
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ted_sound2_low = ted_base + $0f ; low 8 bits of voice #2 frequency
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ted_sound2_hi = ted_base + $10 ; bits 7..2 are unused, bits 1..0 are the highmost 2 bits of voice #2 frequency
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ted_sound_ctrl = ted_base + $11 ; sound control register
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tedsound_DA = %#....... ; D/A mode (sound reload)
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tedsound_NOISE2 = %.#...... ; voice #2 noise on/off
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tedsound_SQUARE2= %..#..... ; voice #2 square wave on/off (if you set both, the square will sound)
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tedsound_ONOFF1 = %...#.... ; voice #1 on/off
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tedsound_VOLUME = %....#### ; volume, maximum value is 8
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ted_misc = ted_base + $12 ; some memory and some sound bits:
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; = %##...... ; unused
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tedmisc_BITMAP = %..###... ; a15/a14/a13 of bitmap in memory
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tedmisc_ROMCHAR = %.....#.. ; 0: charset is in RAM, 1: charset is in ROM
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tedmisc_SOUNDMSB= %......## ; highmost bits of voice #1 frequency
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ted_mem = ted_base + $13 ;
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tedmem_CHARGEN = %######.. ; high address bits of character generator
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tedmem_SCLOCK = %......#. ; 1: force single clock mode
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tedmem_ROM = %.......# ; read-only: ROM is active over $8000
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ted_videoram = ted_base + $14 ; bits 7..3 are the high address bits of video ram
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; color registers
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; %7....... unused
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; %.654.... luminance
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; %....3210 color
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ted_background = ted_base + $15 ; color for %00 pixels (or %0 in HiRes)
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ted_color1 = ted_base + $16 ; color for %01 pixels (MCM and ECM)
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ted_color2 = ted_base + $17 ; color for %10 pixels (MCM and ECM)
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ted_color3 = ted_base + $18 ; color for %11 pixels (MCM graphics and ECM)
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ted_border = ted_base + $19
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; current character position
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ted_charpos_hi = ted_base + $1a ; bits 1..0 are highmost bits
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ted_charpos_lo = ted_base + $1b ; low bits of actual character position
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; current raster position (writable!)
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ted_vertical_hi = ted_base + $1c ; bit 0 is msb of raster line
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ted_vertical_lo = ted_base + $1d ; low 8 bits of raster line
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ted_horizontal = ted_base + $1e ; horizontal position (given in double pixels)
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ted_count = ted_base + $1f
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; = %#....... ; always 1 (unused)
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tedcount_FLASH = %.####... ; flashing counter
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tedcount_CHAR = %.....### ; raster line in character row (r/w!)
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; pseudo registers
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; these are not really registers inside TED, but here they are, anyway:
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!addr ted_enable_roms = $ff3e ; any write here enables ROMs above $8000
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!addr ted_enable_rams = $ff3f ; any write here enables RAM above $8000
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