Environment and functions

Currently the best thing is to read the MSX-DOS 2 documentation. MSX-DOS 1 related commands are marked clearly in the documentation. Also some CP/M documentation may be useful.

MSX-DOS 2 Environment description: http://map.grauw.nl/resources/dos2_environment.php

MSX-DOS 2 Function calls: http://map.grauw.nl/resources/dos2_functioncalls.php

Example

Example of simple file load routine for MSX-DOS:

FCB	EQU #5C		; FCB of 1st commandline parameter
 
	ORG #100
 
	LD DE,#4000	;FREE SPACE
	LD C,#1A	;SET DATA TRANSFER ADDRESS
	CALL 5
 
        LD HL,0		; Reset random record number to 0
        LD (FCB+33),HL
        LD (FCB+35),HL
 
	LD DE,FCB
 
	LD C,#F 	;Open
        PUSH DE
	CALL 5
	POP DE
 
	LD HL,1		; Set record size to 1
	LD (FCB+#E),HL
 
	LD HL,#4000
	LD C,#27	;Read max 16K
        PUSH DE
	CALL 5
	POP DE
 
	LD C,#10        ;Close
	CALL 5
	RET

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