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cc65/asminc/plus4.inc

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;
; Plus/4 generic definitions.
;
; ---------------------------------------------------------------------------
; Zero page, Commodore stuff
TMPPTR := $22 ; Temporary ptr used by BASIC
VARTAB := $2D ; Pointer to start of BASIC variables
MEMSIZE := $37 ; Pointer to highest BASIC RAM location (+1)
TXTPTR := $3B ; Pointer into BASIC source code
TIME := $A3 ; 60HZ clock
FNAM_LEN := $AB ; Length of filename
LFN := $AC ; Logical file number
SECADR := $AD ; Secondary address
DEVNUM := $AE ; Device number
FNAM := $AF ; Pointer to filename for OPEN
KEY_COUNT := $EF ; Number of keys in input buffer
RVS := $C2 ; Reverse flag
CURS_X := $CA ; Cursor column
CURS_Y := $CD ; Cursor row
SCREEN_PTR := $C8 ; Pointer to current char in text screen
CRAM_PTR := $EA ; Pointer to current char in color RAM
BASIC_BUF := $200 ; Location of command-line
BASIC_BUF_LEN = 89 ; Maximum length of command-line
FNBUF := $25E ; Buffer for filename
FETCH := $494 ; lda (zp),y from RAM
CHARCOLOR := $53B
FKEY_COUNT := $55D ; Characters for function key
FKEY_SPACE := $55F ; Function key definitions
FKEY_ORIG := $F3D2 ; Original definitions
KBDREPEAT := $540
KBDREPEATRATE := $541
KBDREPEATDELAY := $542
2017-06-17 00:37:34 +00:00
; ---------------------------------------------------------------------------
; Vector and other locations
IRQVec := $0314
BRKVec := $0316
NMIVec := $0318
; ---------------------------------------------------------------------------
; Screen size
XSIZE = 40
YSIZE = 25
; ---------------------------------------------------------------------------
; I/O
TED_T1LO := $FF00
TED_T1HI := $FF01
TED_T2LO := $FF02
TED_T2HI := $FF03
TED_T3LO := $FF04
TED_T4HI := $FF05
TED_MULTI1 := $FF07
TED_KBD := $FF08
TED_CURSHI := $FF0C
TED_CURSLO := $FF0D
TED_V1FRQLO := $FF0E
TED_V2FRQLO := $FF0F
TED_V2FRQHI := $FF10
TED_CLK := $FF13
TED_BGCOLOR := $FF15
TED_COLOR1 := $FF16
TED_COLOR2 := $FF17
TED_COLOR3 := $FF18
TED_BORDERCOLOR := $FF19
TED_VLINEHI := $FF1C
TED_VLINELO := $FF1D
TED_HPOS := $FF1E
TED_ROMSEL := $FF3E
TED_RAMSEL := $FF3F
; ---------------------------------------------------------------------------
; RAM/ROM selection addresses
ENABLE_ROM := TED_ROMSEL
ENABLE_RAM := TED_RAMSEL