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Set of Apple II Hard Drive Images
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TRAILER.SRC.txt
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2020-08-13
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;OBJECT TRAILER... ADAPTED FROM ML.INTEGRATOR
;
;*===========*
;* SECTION 2 *
;*===========*
;this can be called at end of BASIC program using CALL 2049
;
QUITMLIN LDA #<MLINTEG0
STA TXTTAB+1
LDA #>MLINTEG0
STA TXTTAB
LDA #$00
STA MLINTEG0
STA MLINTEG0+1
STA MLINTEG0+2
JMP DOSVEC
;
;*===========*
;* SECTION 3 *
;*===========*
;this section gets written over by your BASIC program
;only used if running under DOS 3.3 - it is a one line program
;
PGRM BRK
DW PGRM1
DW $000A
DFB $BA ;TOKEN FOR PRINT
DFB $22,$04 ;"ctrl-D
;
;*** EDASM SETS HI BIT OF ASCII CHARACTERS - WE'LL GET RID OF THEM LATER
RUNCMD ASC 'RUN '
ASC 'DUMMYPGM.BAS' ;CHANGE TO YOUR BASIC PGM NAME
;
DFB $00 ;MARKER FOR END OF STATEMENT
PGRM1 BRK
BRK
;
;*===========*
;* SECTION 4 *
;*===========*
;set up ptrs to new program and vector to quit exit
;
MLINTEG LDA #<PGRM+1
STA TXTTAB+1
LDA #>PGRM+1
STA TXTTAB
LDA #<QUITMLIN
STA MLINTEG0+2
LDA #>QUITMLIN
STA MLINTEG0+1
;
; you can add extra stuff here
; ex: &vectors, reset vectors, interface initialization, welcome message
;
;*===========*
;* SECTION 5 *
;*===========*
;used to run the basic program from PRODOS - setup filename at bottom
;
LDA $BF00
CMP #$4C
BNE NOPRODOS
LDX CMD
INX
LDA #$8D
STR STA BUF-1,X
DEX
BMI RUNPRO
LDA CMD,X
JMP STR
;
RUNPRO JSR $BE03 ;BI VECTOR
LDA $BE0F ;IF ERROR
JSR $BE0C ;PRINT MSG
RTS
;
; ***================================***
; *** SET UP PRODOS RUN COMMAND HERE ***
; ***================================***
;
CMD DFB 16 ; LENGTH OF STRING BELOW
ASC 'RUN DUMMYPGM.BAS' ; (EDASM SETS HI BITS FOR US)
;
; ***-----------------***
; *** DOS 3.3 ROUTINE ***
; ***-----------------***
NOPRODOS LDX #$00 ;FOR DOS 3.3, CONVERT PGM NAME TO
ASCLOOP LDA RUNCMD,X ;ASCII WITH HI BIT CLEAR.
BEQ RUNIT
AND #$7F
STA RUNCMD,X
INX
BNE ASCLOOP
;
RUNIT JMP RUN
BRK
;