mirror of https://github.com/cc65/cc65.git
575 lines
14 KiB
PHP
575 lines
14 KiB
PHP
;
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; CX16 r39 definitions
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;
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; ---------------------------------------------------------------------------
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; Constants
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.enum COLOR
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BLACK = $00
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WHITE
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RED
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CYAN
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PURPLE
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GREEN
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BLUE
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YELLOW
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ORANGE
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BROWN
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PINK
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LIGHTRED = PINK
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GRAY1
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GRAY2
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LIGHTGREEN
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LIGHTBLUE
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GRAY3
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.endenum
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; Special characters
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.enum CH
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COLOR_SWAP = $01
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STOP = $03
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UNDERLINE
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WHITE
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BOLD
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BELL
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BACKSPACE
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TAB
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LINEFEED
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ITALIC
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OUTLINE
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ENTER
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FONT_LOWER
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FONT_ISO
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F9
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CURS_DOWN
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REVERSE
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HOME
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DEL
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F10
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F11
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F12
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SHIFT_TAB
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RED = $1C
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CURS_RIGHT
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GREEN
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BLUE
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LIRA = $5C
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ORANGE = $81
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RUN = $83
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HELP
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F1
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F3
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F5
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F7
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F2
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F4
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F6
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F8
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SHIFT_ENTER
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FONT_UPPER
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FONT_PET
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BLACK
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CURS_UP
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ATTR_CLEAR
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SCRN_CLEAR
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INS
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BROWN
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PINK
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LIGHTRED = PINK
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GRAY1
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GRAY2
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LIGHTGREEN
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LIGHTBLUE
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GRAY3
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PURPLE
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CURS_LEFT
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YELLOW
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CYAN
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SHIFT_SPACE
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LTEE = $AB
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LLCORNER = $AD
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URCORNER
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ULCORNER = $B0
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BTEE
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TTEE
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RTEE
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LRCORNER = $BD
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HLINE = $C0
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CROSS = $DB
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VLINE = $DD
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PI
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.endenum
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; ---------------------------------------------------------------------------
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; Zero page
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; Banking registers
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RAM_BANK := $00
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ROM_BANK := $01
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; GEOS and graphics pseudo-registers
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.struct gREG
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.org $02
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.union
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r0 .word
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.struct
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r0L .byte
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r0H .byte
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.endstruct
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.endunion
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.union
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r1 .word
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.struct
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r1L .byte
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r1H .byte
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.endstruct
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.endunion
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.union
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r2 .word
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.struct
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r2L .byte
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r2H .byte
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.endstruct
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.endunion
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.union
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r3 .word
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.struct
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r3L .byte
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r3H .byte
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.endstruct
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.endunion
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.union
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r4 .word
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.struct
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r4L .byte
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r4H .byte
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.endstruct
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.endunion
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.union
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r5 .word
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.struct
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r5L .byte
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r5H .byte
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.endstruct
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.endunion
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.union
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r6 .word
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.struct
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r6L .byte
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r6H .byte
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.endstruct
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.endunion
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.union
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r7 .word
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.struct
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r7L .byte
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r7H .byte
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.endstruct
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.endunion
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.union
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r8 .word
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.struct
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r8L .byte
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r8H .byte
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.endstruct
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.endunion
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.union
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r9 .word
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.struct
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r9L .byte
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r9H .byte
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.endstruct
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.endunion
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.union
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r10 .word
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.struct
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r10L .byte
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r10H .byte
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.endstruct
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.endunion
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.union
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r11 .word
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.struct
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r11L .byte
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r11H .byte
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.endstruct
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.endunion
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.union
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r12 .word
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.struct
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r12L .byte
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r12H .byte
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.endstruct
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.endunion
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.union
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r13 .word
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.struct
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r13L .byte
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r13H .byte
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.endstruct
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.endunion
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.union
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r14 .word
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.struct
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r14L .byte
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r14H .byte
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.endstruct
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.endunion
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.union
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r15 .word
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.struct
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r15L .byte
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r15H .byte
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.endstruct
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.endunion
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.endstruct
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; Kernal
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KTEMP2 := $80 ; 2 bytes for temporary storage
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IMPARM := $82 ; Pointer for PRIMM function
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FNAM := $8A ; Pointer to filename
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; BASIC
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TXTPTR := $EE ; Pointer into BASIC source code
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; Page two
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BASIC_BUF := $0200 ; Location of command-line
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BASIC_BUF_LEN = 81 ; Maximum length of command-line
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SCREEN_PTR := $0262 ; Pointer to current row on text screen (16 bits)
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STATUS := $0289 ; Status from previous I/O operation
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IN_DEV := $028D ; Current input device number
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OUT_DEV := $028E ; Current output device number
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FNAM_LEN := $0291 ; Length of filename
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SECADR := $0293 ; Secondary address
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DEVNUM := $0294 ; Device number
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CURS_COLOR := $0373 ; Color under the cursor
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CHARCOLOR := $0376 ; Cursor's color nybbles (high: background, low: foreground)
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RVS := $0377 ; Reverse flag
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CURS_FLAG := $037B ; 1 = cursor off
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CURS_BLINK := $037C ; Blink counter
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CURS_CHAR := $037D ; Character under the cursor
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CURS_STATE := $037E ; Cursor blink state
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CURS_X := $0380 ; Cursor column
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CURS_Y := $0383 ; Cursor row
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LLEN := $0386 ; Line length
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NLINES := $0387 ; Number of screen lines
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; BASIC
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VARTAB := $03E2 ; Pointer to start of BASIC variables
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MEMSIZE := $03EA ; Pointer to highest BASIC RAM location (+1)
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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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; I/O locations
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; 65C22 Versatile Interface Adapter
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.struct VIA1 ; Versatile Interface Adapter
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.org $9F00
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PRB .byte ; mouse, LED, VIC bus (Port Register B)
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PRA .byte ; keyboard, controllers (Port Register A)
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DDRB .byte ; (Data Direction Register B)
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DDRA .byte ; (Data Direction Register A)
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T1 .word ; (Timer 1)
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T1L .word ; (Timer 1 Latch)
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T2 .word ; (Timer 2)
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SR .byte ; (Shift Register)
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ACR .byte ; (Auxiliary Control Register)
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PCR .byte ; (Peripheral Control Register)
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IFR .byte ; (Interrupt Flags Register)
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IER .byte ; (Interrupt Enable Register)
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PRA2 .byte ; keyboard, controllers (PRA without handshake)
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.endstruct
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; 65C22 Versatile Interface Adapter
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.struct VIA2
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.org $9F10
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PRB .byte
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PRA .byte
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DDRB .byte
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DDRA .byte
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T1 .word
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T1L .word
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T2 .word
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SR .byte
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ACR .byte
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PCR .byte
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IFR .byte
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IER .byte
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PRA2 .byte
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.endstruct
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; Video Enhanced Retro Adapter
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; Has audio and SPI.
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.scope VERA
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; External registers
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.struct
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.org $9F20
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ADDR .faraddr ; Address for data port access
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DATA0 .byte ; First data port
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DATA1 .byte ; Second data port
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CTRL .byte ; Control register
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IRQ_EN .byte ; Interrupt enable bits
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IRQ_FLAGS .byte ; Interrupt flags
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IRQ_RASTER .byte ; Line where IRQ will occur
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.endstruct
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.enum ; Address automatic increment amounts
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DEC0 = (($00 << 1) | $01) << 3
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DEC1 = (($01 << 1) | $01) << 3
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DEC2 = (($02 << 1) | $01) << 3
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DEC4 = (($03 << 1) | $01) << 3
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DEC8 = (($04 << 1) | $01) << 3
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DEC16 = (($05 << 1) | $01) << 3
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DEC32 = (($06 << 1) | $01) << 3
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DEC64 = (($07 << 1) | $01) << 3
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DEC128 = (($08 << 1) | $01) << 3
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DEC256 = (($09 << 1) | $01) << 3
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DEC512 = (($0A << 1) | $01) << 3
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DEC40 = (($0B << 1) | $01) << 3
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DEC80 = (($0C << 1) | $01) << 3
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DEC160 = (($0D << 1) | $01) << 3
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DEC320 = (($0E << 1) | $01) << 3
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DEC640 = (($0F << 1) | $01) << 3
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INC0 = (($00 << 1) | $00) << 3
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INC1 = (($01 << 1) | $00) << 3
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INC2 = (($02 << 1) | $00) << 3
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INC4 = (($03 << 1) | $00) << 3
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INC8 = (($04 << 1) | $00) << 3
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INC16 = (($05 << 1) | $00) << 3
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INC32 = (($06 << 1) | $00) << 3
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INC64 = (($07 << 1) | $00) << 3
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INC128 = (($08 << 1) | $00) << 3
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INC256 = (($09 << 1) | $00) << 3
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INC512 = (($0A << 1) | $00) << 3
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INC40 = (($0B << 1) | $00) << 3
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INC80 = (($0C << 1) | $00) << 3
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INC160 = (($0D << 1) | $00) << 3
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INC320 = (($0E << 1) | $00) << 3
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INC640 = (($0F << 1) | $00) << 3
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.endenum
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.enum ; Interrupt request flags
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VERT_SYNC = %00000001
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RASTER_IRQ = %00000010
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SPR_COLLIDED = %00000100
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AUDIO_LOW = %00001000
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.endenum
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.scope DISP ; Display controller
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SELECT1 = %00000010
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.union
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.org $9F29
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.struct
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; These four registers are visible when the DCSEL flag = %0
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VIDEO .byte
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HSCALE .byte
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VSCALE .byte
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FRAME .byte
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.endstruct
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.struct
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; These four registers are visible when the DCSEL flag = %1
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HSTART .byte
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HSTOP .byte
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VSTART .byte
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VSTOP .byte
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.endstruct
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.endunion
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.enum MODE ; Output mode
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DISABLE = $00
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VGA
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NTSC
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RGB ; Interlaced, composite sync
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.endenum
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.enum DISABLE
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COLOR = %00000100 ; NTSC monochrome
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.endenum
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.enum ENABLE
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LAYER0 = %00010000
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LAYER1 = %00100000
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SPRITES = %01000000
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.endenum
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.endscope
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.struct L0 ; Display layer 0
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.org $9F2D
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CONFIG .byte
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MAP_BASE .byte
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TILE_BASE .byte
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HSCROLL .word
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VSCROLL .word
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.endstruct
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.struct L1 ; Display layer 1
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.org $9F34
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CONFIG .byte
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MAP_BASE .byte
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TILE_BASE .byte
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HSCROLL .word
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VSCROLL .word
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.endstruct
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.enum ; Layer display modes
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TILE1BPP = %00000000 | $00
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TILE2BPP
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TILE4BPP
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TILE8BPP
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T256C = %00001000
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BITMAP1BPP = %00000100 | $00
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BITMAP2BPP
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BITMAP4BPP
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BITMAP8BPP
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.endenum
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.enum MAP ; Map geometry
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WIDTH32 = $00 << 4
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WIDTH64 = $01 << 4
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WIDTH128 = $02 << 4
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WIDTH256 = $03 << 4
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HEIGHT32 = $00 << 6
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HEIGHT64 = $01 << 6
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HEIGHT128 = $02 << 6
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HEIGHT256 = $03 << 6
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.endenum
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.enum TILE ; Tile geometry
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WIDTH8 = $00
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WIDTH16 = $01
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WIDTH320 = WIDTH8
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WIDTH640 = WIDTH16
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HEIGHT8 = $00 << 1
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HEIGHT16 = $01 << 1
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.endenum
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.scope PCM ; Pulse-Code Modulator
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.struct
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.org $9F3B
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CTRL .byte
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RATE .byte
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DATA .byte
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.endstruct
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.enum
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STEREO = %00010000
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BITS16 = %00100000
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RESET = %10000000
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.endenum
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.endscope
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.scope SPI
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.struct
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.org $9F3E
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DATA .byte
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CTRL .byte
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.endstruct
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.enum
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SELECT = %00000001
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SLOW = %00000010
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.endenum
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.endscope
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; Internal RAM and registers
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.struct
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.org $000000
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VRAM .res $020000 ; 128 Kibibytes
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.endstruct
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.scope PSG ; Programmable Sound Generator
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.struct
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PITCH .word
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VOL .byte ; Right, left sides; volume
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WAVEFORM .byte ; Wave shape, pulse width
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.endstruct
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LEFT = %01 << 6
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RIGHT = %10 << 6
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.enum
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PULSE = $00 << 6
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SAWTOOTH = $01 << 6
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TRIANGLE = $02 << 6
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NOISE = $03 << 6
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.endenum
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.struct
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.org $01F9C0
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VOICES .res $10 * 4
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.endstruct
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.endscope
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.struct
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.org $01FA00
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PALETTE .word $0100
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.endstruct
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.scope SPRITE
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.struct ; Sprite attributes
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ADDR .addr ; Address and color mode
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XX .word ; Co-ordinates
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YY .word
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Z_FLIP .byte ; Collision mask, Z-depth, flip bits
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SIZE_PAL .byte
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.endstruct
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.enum FLIP
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NONE = %00000000
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HORIZ
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VERT
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BOTH
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.endenum
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.enum DEPTH
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DISABLE = $00 << 2
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CANVAS = $01 << 2
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LAYER0 = $02 << 2
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LAYER1 = $03 << 2
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.endenum
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.enum ; Sprite geometry
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WIDTH8 = $00 << 4
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WIDTH16 = $01 << 4
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WIDTH32 = $02 << 4
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WIDTH64 = $03 << 4
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HEIGHT8 = $00 << 6
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HEIGHT16 = $01 << 6
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HEIGHT32 = $02 << 6
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HEIGHT64 = $03 << 6
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COLORS16 = $00 << 7
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COLORS256 = $01 << 7
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.endenum
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.endscope
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.struct
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.org $01FC00
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SPRITES .res 128 * 8
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.endstruct
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.endscope
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; YM2151 audio chip
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.struct YM2151
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.org $9F40
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ADDR .byte
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.union
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DATA .byte
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STATUS .byte
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.endunion
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.endstruct
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; X16 Emulator device
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; This device doesn't exist on the real machine.
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.struct EMULATOR
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.org $9FB0
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DEBUG .byte ; Boolean: debugging enabled
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VERALOG .byte ; Boolean: log VERA activity
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KEYBOARDLOG .byte ; Boolean: log keyboard data
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ECHO .byte ; Type of echo that's enabled
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SAVEXIT .byte ; Boolean: save machine state on exit
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GIFREC .byte ; Method of recording GIF movie
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.res 2
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CYCLECOUNT .dword ; Running count of CPU cycles (Read-Only)
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.res 1
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KEYMAP .byte ; Current keyboard layout number (Read-Only)
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DETECT .byte 2 ; If is "16" string, then running on emulator (RO)
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.endstruct
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; ---------------------------------------------------------------------------
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; Banked RAM and ROM
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TIMER := $A03B ; (bank 0) 60 Hz. timer (3 bytes, big-endian)
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.struct BANK
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.org $A000
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RAM .res $2000 ; 8 Kibibyte window into 512 Kibibytes or 2048 Kibibytes
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ROM .res $4000 ; 16 Kibibyte window into 128 Kibibytes
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.endstruct
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