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cc65/libsrc/atmos/bashdr.s

35 lines
1.1 KiB
ArmAsm

;
; 2010-11-14, Ullrich von Bassewitz
; 2016-03-17, Greg King
;
; This module supplies a small BASIC stub program that uses CALL
; to jump to the machine-language code that follows it.
;
; The following symbol is used by the linker config. file
; to force this module to be included into the output file.
.export __BASHDR__:abs = 1
.segment "BASHDR"
.addr Next
.word .version ; Line number
.byte $BF,'#' ; CALL token, mark number as hexadecimal
.byte <(Start >> 8 ) + '0' + (Start >> 8 > $09) * $07
.byte <(Start >> 4 & $0F) + '0' + (Start >> 4 & $0F > $09) * $07
.byte <(Start & $0F) + '0' + (Start & $0F > $09) * $07
.byte $00 ; End of BASIC line
Next: .addr $0000 ; BASIC program end marker
Start:
; ------------------------------------------------------------------------
; This padding is needed by a bug in the ROM.
; (The CLOAD command starts BASIC's variables table on top of the last byte
; that was loaded [instead of at the next address].)
.segment "BASTAIL"
.byte 0