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81f2d3f683
git-svn-id: https://svn.code.sf.net/p/acme-crossass/code-0/trunk@114 4df02467-bbd4-4a76-a152-e7ce94205b78
23 lines
933 B
Plaintext
23 lines
933 B
Plaintext
;ACME 0.96.4
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!ifdef lib_cbm_c128_vic_a !eof
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lib_cbm_c128_vic_a = 1
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!source <cbm/c64/vic.a> ; registers 0..2e
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; registers only present in the C128 variant of this chip:
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vic_keyboard = vic_base + $2f
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; %76543... always set
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; %.....210 output pins for extended keyboard layout
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vic_clock = vic_base + $30
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; %765432.. always set
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; %......1. "test" bit: 0 = normal, 1 = system clock changes raster line
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; %.......0 system clock: 0 = 1 MHz, 1 = 2 MHz (VIC bus cycles will be given to CPU instead)
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; the c128 ROMs contain two copies of a look-up table to convert vic color
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; values to their corresponding petscii color codes:
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; rom4_* needs "low rom area" enabled ($4000..$7fff)
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; romc_* needs "high rom area" enabled ($c000..$ffff)
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!addr rom4_vic_to_petscii_color_table = $76b5 ; 90 05 1c 9f 9c 1e 1f 9e 81 95 96 97 98 99 9a 9b
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!addr romc_vic_to_petscii_color_table = $ce4c ; 90 05 1c 9f 9c 1e 1f 9e 81 95 96 97 98 99 9a 9b
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