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https://github.com/cc65/cc65.git
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37178d5141
that are set on startup. This is needed to support the C128, which can switch the screen size at runtime. git-svn-id: svn://svn.cc65.org/cc65/trunk@2042 b7a2c559-68d2-44c3-8de9-860c34a00d81
84 lines
2.1 KiB
PHP
84 lines
2.1 KiB
PHP
;
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; Plus/4 generic definitions.
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;
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; ---------------------------------------------------------------------------
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; Zero page, Commodore stuff
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TMPPTR = $22 ; Temporary ptr used by BASIC
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ST = $90 ; IEC status byte
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TIME = $A3 ; 60HZ clock
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FNAM_LEN = $AB ; Length of filename
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LFN = $AC ; Logical file number
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SECADR = $AD ; Secondary address
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DEVNUM = $AE ; Device number
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FNAM_ADR = $AF ; Pointer to filename for OPEN
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KEY_COUNT = $EF ; Number of keys in input buffer
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RVS = $C2 ; Reverse flag
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CURS_X = $CA ; Cursor column
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CURS_Y = $CD ; Cursor row
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SCREEN_PTR = $C8 ; Pointer to current char in text screen
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CRAM_PTR = $EA ; Pointer to current char in color RAM
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INBUF = $25E ; BASIC Input buffer
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CHARCOLOR = $53B
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FKEY_COUNT = $55D ; Characters for function key
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FKEY_SPACE = $55F ; Function key definitions
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FKEY_ORIG = $F3D2 ; Original definitions
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; ---------------------------------------------------------------------------
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; Kernal routines
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; Direct entries
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CLRSCR = $D88B
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KBDREAD = $D8C1
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; ---------------------------------------------------------------------------
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; Vector and other locations
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IRQVec = $0314
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BRKVec = $0316
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NMIVec = $0318
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; ---------------------------------------------------------------------------
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; Screen size
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XSIZE = 40
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YSIZE = 25
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; ---------------------------------------------------------------------------
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; I/O
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TED_T1LO = $FF00
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TED_T1HI = $FF01
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TED_T2LO = $FF02
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TED_T2HI = $FF03
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TED_T3LO = $FF04
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TED_T4HI = $FF05
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TED_MULTI1 = $FF07
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TED_KBD = $FF08
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TED_CURSHI = $FF0C
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TED_CURSLO = $FF0D
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TED_V1FRQLO = $FF0E
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TED_V2FRQLO = $FF0F
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TED_V2FRQHI = $FF10
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TED_BGCOLOR = $FF15
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TED_COLOR1 = $FF16
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TED_COLOR2 = $FF17
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TED_COLOR3 = $FF18
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TED_BORDERCOLOR = $FF19
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TED_VLINEHI = $FF1C
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TED_VLINELO = $FF1D
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TED_HPOS = $FF1E
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TED_ROMSEL = $FF3E
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TED_RAMSEL = $FF3F
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; ---------------------------------------------------------------------------
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; RAM/ROM selection addresses
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ENABLE_ROM = TED_ROMSEL
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ENABLE_RAM = TED_RAMSEL
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