cc65/libsrc/sim6502/exehdr.s

;
; Oliver Schmidt, 2013-05-16
;
; This module supplies a header used by sim65.
;

        .export         __EXEHDR__ : absolute = 1       ; Linker referenced
        .importzp       sp
        .import         __MAIN_START__
        .import         startup

        .segment        "EXEHDR"

        .byte   $73, $69, $6D, $36, $35        ; 'sim65'
        .byte   2                              ; header version
        .byte   .defined(__SIM65C02__)         ; CPU type
        .byte   sp                             ; sp address
        .addr   __MAIN_START__                 ; load address
        .addr   startup                        ; reset address
Added 'sim6502' and 'sim65C02' targets. The targets allow to run cc65 programs in the sim65 exection einvironment. As there are no "real" i/o facilities there's no need for header files. Paravirtualized entry points are mapped to $FFF0 ff. There's a large cc65 progam area from $0200-$FFEF. The binary format includes a one-byte header indicating the required execution environment: The value 0 means 6502 and the value 1 means 65C02. The load adress for the binary is fixed to $0200. Note: Running sim65C02 programs currently doesn't work bcause sim65 doesn't actually implement 65C02 opcodes. 2013-05-20 18:35:42 +00:00			`;`
			`; Oliver Schmidt, 2013-05-16`
			`;`
sim65 header comment fix 2019-05-29 20:32:44 +00:00			`; This module supplies a header used by sim65.`
Added 'sim6502' and 'sim65C02' targets. The targets allow to run cc65 programs in the sim65 exection einvironment. As there are no "real" i/o facilities there's no need for header files. Paravirtualized entry points are mapped to $FFF0 ff. There's a large cc65 progam area from $0200-$FFEF. The binary format includes a one-byte header indicating the required execution environment: The value 0 means 6502 and the value 1 means 65C02. The load adress for the binary is fixed to $0200. Note: Running sim65C02 programs currently doesn't work bcause sim65 doesn't actually implement 65C02 opcodes. 2013-05-20 18:35:42 +00:00			`;`

			`.export __EXEHDR__ : absolute = 1 ; Linker referenced`
movable sp for sim65 2019-05-28 19:29:55 +00:00			`.importzp sp`
versionable header for sim65 load and run address now configured from header fix error codes not to conflict with test fix test/misc/endless.c which is supposed to fail if an endless loop does not occur 2019-05-29 20:04:54 +00:00			`.import __MAIN_START__`
Renamed program start label. 2019-05-29 22:06:31 +00:00			`.import startup`
Added 'sim6502' and 'sim65C02' targets. The targets allow to run cc65 programs in the sim65 exection einvironment. As there are no "real" i/o facilities there's no need for header files. Paravirtualized entry points are mapped to $FFF0 ff. There's a large cc65 progam area from $0200-$FFEF. The binary format includes a one-byte header indicating the required execution environment: The value 0 means 6502 and the value 1 means 65C02. The load adress for the binary is fixed to $0200. Note: Running sim65C02 programs currently doesn't work bcause sim65 doesn't actually implement 65C02 opcodes. 2013-05-20 18:35:42 +00:00
			`.segment "EXEHDR"`

versionable header for sim65 load and run address now configured from header fix error codes not to conflict with test fix test/misc/endless.c which is supposed to fail if an endless loop does not occur 2019-05-29 20:04:54 +00:00			`.byte $73, $69, $6D, $36, $35 ; 'sim65'`
			`.byte 2 ; header version`
			`.byte .defined(__SIM65C02__) ; CPU type`
			`.byte sp ; sp address`
			`.addr __MAIN_START__ ; load address`
Renamed program start label. 2019-05-29 22:06:31 +00:00			`.addr startup ; reset address`