mirror of https://github.com/dschmenk/VM02.git
148 lines
2.4 KiB
ArmAsm
Executable File
148 lines
2.4 KiB
ArmAsm
Executable File
;
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; Sample PLASMA library.
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;
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!TO "samplib.bin", PLAIN
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* = $1000
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;
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; DATA/CODE SEGMENT
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;
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_SEGBEGIN
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!WORD _SEGEND-_SEGBEGIN ; LENGTH OF HEADER + CODE/DATA + BYTECODE SEGMENT
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;
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; MODULE HEADER
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;
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!WORD $DA7E ; MAGIC #
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!WORD _SUBSEG ; BYTECODE SUB-SEGMENT
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;
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; MODULE DEPENDENCY LIST
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; NOTE: DCI = PSUEDO OP FOR ASCII STRING WITH HI BIT SET EXCEPT LAST CHAR
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;
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;DCI "STDLIB"
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!CT "hi.ascii"
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!TX "STDLI"
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!CT RAW
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!TX 'B'
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;DCI "FILEIO"
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!CT "hi.ascii"
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!TX "FILEI"
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!CT RAW
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!TX 'O'
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!BYTE 0
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;
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; NATIVE CODE + GLOBAL DATA
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;
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COUNT !WORD 0
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INCCNT
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FIXUP1 INC COUNT
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BNE XINIT
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FIXUP2 INC COUNT+1
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XINIT RTS
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;
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; BYTECODE SUB-SEGMENT
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;
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_SUBSEG
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MYFUNC !BYTE $58, $01, $16 ; ENTER 1,16
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!BYTE $66, $02 ; LLW 2
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!BYTE $2A, $01 ; CB 1
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!BYTE $54 ; CALL EXTERN(1) "OPEN"
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FIXUP4 !WORD $0000
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!BYTE $6E, $04 ; DLW 4
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!BYTE $54 ; CALL EXTERN(3) "READ"
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FIXUP5 !WORD $0000
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!BYTE $30 ; DROP
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!BYTE $66, $04 ; LLW 4
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!BYTE $54 ; CALL EXTERN(2) ; "CLOSE"
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FIXUP6 !WORD $0000
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!BYTE $30 ; DROP
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!BYTE $6A ; LAW COUNT
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FIXUP7 !WORD $0000
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!BYTE $54 ; CALL INCNT
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FIXUP8 !WORD $0000
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!BYTE $5A ; LEAVE
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;
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; END OF CODE/DATA + BYTECODE SEGMENT
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;
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_SEGEND
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;
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; BYTCODE FUNCTION DICTIONARY
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;
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!BYTE $A1 ; FIXUP FLAGS
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!WORD MYFUNC ; FIXUP OFFSET
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!BYTE $00 ; FIXUP LO BYTE (OF HI BYTE)/IMPORT INDEX
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;
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; RE-LOCATION DICTIONARY (FIXUP TABLE)
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;
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!BYTE $81 ; FIXUP FLAGS
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!WORD FIXUP1+1 ; FIXUP OFFSET
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!BYTE $00 ; FIXUP LO BYTE (OF HI BYTE)/IMPORT INDEX
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!BYTE $81
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!WORD FIXUP2+1
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!BYTE $00
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!BYTE $91 ; IMPORT FIXUP
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!WORD FIXUP4
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!BYTE $01 ; IMPORT INDEX 1
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!BYTE $91
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!WORD FIXUP5
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!BYTE $03
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!BYTE $91
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!WORD FIXUP6
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!BYTE $02
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!BYTE $81
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!WORD FIXUP7
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!BYTE $00
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!BYTE $81
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!WORD FIXUP8
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!BYTE $00
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!BYTE 0 ; END OF RLD
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;
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; EXTERNAL/ENTRY SYMBOL DIRECTORY
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;;
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; IMPORT TABLE
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;
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IMPTBL ;DCI "OPEN" ; EXTERNAL SYMBOL NAME
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!CT "hi.ascii"
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!TX "OPE"
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!CT RAW
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!TX 'N'
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!BYTE $10 ; EXTERNAL SYMBOL FLAG
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!WORD 1 ; SYMBOL INDEX
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;DCI "CLOSE"
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!CT "hi.ascii"
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!TX "CLOS"
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!CT RAW
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!TX 'E'
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!BYTE $10
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!WORD 2
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;DCI "READ"
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!CT "hi.ascii"
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!TX "REA"
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!CT RAW
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!TX 'D'
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!BYTE $10
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!WORD 3
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;DCI "MEMSET"
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!CT "hi.ascii"
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!TX "MEMSE"
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!CT RAW
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!TX 'T'
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!BYTE $10
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!WORD 4
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;
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; EXPORT TABLE
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;
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EXPTBL ;DCI "INCNT" ; ENTRY SYMBOL NAME
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!CT "hi.ascii"
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!TX "INCN"
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!CT RAW
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!TX 'T'
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!BYTE $08 ; ENTRY SYMBOL FLAG
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!WORD INCCNT ; OFFSET
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;DCI "MYFUNC"
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!CT "hi.ascii"
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!TX "MYFUN"
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!CT RAW
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!TX 'C'
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!BYTE $08
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!WORD MYFUNC
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!BYTE 0 ; END OF ESD
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