107 lines
2.5 KiB
NASM
107 lines
2.5 KiB
NASM
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;by passing parameters via the system parameter area (SYSPARM).
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;
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;Inputs:
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;01 COBLOAD-PARMS
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; 05 FILE-SPEC-1 PIC X(80). Contains complete drive, path and filename.
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; 05 PARAMETER-1 PIC X(80). Contains command line parameters.
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; 05 FILE-SPEC-2 PIC X(80). Same as 1.
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; 05 PARAMETER-2 PIC X(80). Same as 1.
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;
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;Outputs:
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; None.
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;----------------------------------------------------------------------------
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CL_CODE_SEG SEGMENT PUBLIC 'CODE'
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ASSUME CS:CL_CODE_SEG,DS:CL_CODE_SEG,ES:CL_CODE_SEG
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STACK_PARM STRUC
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PUSHED_SI DW ?
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PUSHED_DI DW ?
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PUSHED_DS DW ?
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PUSHED_ES DW ?
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PUSHED_BP DW ?
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RETURN_IP DW ?
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RETURN_CS DW ?
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PARM1_OFFSET DW ?
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PARM1_DS DW ?
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STACK_PARM ENDS
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PUBLIC COBLOAD ;make known to COBOL at link time
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COBLOAD PROC FAR
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;prologue
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PUSH BP
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PUSH ES
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PUSH DS
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PUSH DI
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PUSH SI
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MOV BP,SP ;set base for stack parm structure
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;address caller's parameter block
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MOV AX,[BP].PARM1_DS
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MOV DS,AX ;DS -> cobol data seg
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MOV SI,[BP].PARM1_OFFSET ;SI -> offset to parm block
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;address load's parameter block in sysparm
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MOV DX,'dk' ;verification switch
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INT 77H ;get seg addr in AX
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MOV ES,AX ;ES -> sysparm
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MOV DI,0 ;DI -> offset to LOAD parms
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;move cobol's parm block to load's parm block (in sysparm)
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CLD ;set direction for moves
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MOV CX,80 ;length of move
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REP MOVSB ;move file spec 1
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ASCIIZ1: MOV BYTE PTR ES:[DI],0 ;make asciiz string
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DEC DI
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MOV AL,BYTE PTR ES:[DI]
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CMP AL,' ' ;nullify trailing spaces
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JE ASCIIZ1
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MOV BX,81 ;point to parm length byte
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MOV BYTE PTR ES:[BX],82 ;init length of parm, + 2
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MOV DI,82 ;point to 1st parm position
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MOV CX,80 ;length of move
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REP MOVSB ;move parm
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ADD_CR_1: MOV BYTE PTR ES:[DI],13 ;add carriage return
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DEC BYTE PTR ES:[BX] ;sub 1 from length of parm
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DEC DI
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MOV AL,BYTE PTR ES:[DI]
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CMP AL,' ' ;put cr in trailing spaces
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JE ADD_CR_1
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MOV DI,163
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MOV CX,80 ;length of move
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REP MOVSB ;move file spec 2
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ASCIIZ2: MOV BYTE PTR ES:[DI],0 ;make asciiz string
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DEC DI
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MOV AL,BYTE PTR ES:[DI]
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CMP AL,' ' ;nullify trailing spaces
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JE ASCIIZ2
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MOV BX,244 ;point to parm length byte
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MOV BYTE PTR ES:[BX],82 ;init length of parm, + 2
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MOV DI,245 ;point to 1st parm position
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MOV CX,80 ;length of move
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REP MOVSB ;move parm
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ADD_CR_2: MOV BYTE PTR ES:[DI],13 ;add carriage return
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DEC BYTE PTR ES:[BX] ;sub 1 from length of parm
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DEC DI
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MOV AL,BYTE PTR ES:[DI]
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CMP AL,' ' ;put cr in trailing spaces
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JE ADD_CR_2
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;return to caller
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POP SI
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POP DI
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POP DS
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POP ES
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POP BP
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RET 4
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COBLOAD ENDP
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CL_CODE_SEG ENDS
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END
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