59 lines
988 B
NASM
59 lines
988 B
NASM
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%if 0
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FreeDOS kernel executable MZ header shim
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by C. Masloch, 2022
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Usage of the works is permitted provided that this
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instrument is retained with the works, so that any entity
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that uses the works is notified of this instrument.
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DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.
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%endif
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%include "lmacros2.mac"
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defaulting
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strdef FILE, ""
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%ifidn _FILE,""
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%fatal Has to specify a file!
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%endif
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org 0
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header:
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db "MZ" ; exeSignature
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dw (payload.end - $$) % 512 ; exeExtraBytes
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dw (payload.end - $$ + 511) / 512 ; exePages
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dw 0 ; exeRelocItems
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dw (payload -$$+0) >> 4 ; exeHeaderSize
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dw 0 ; exeMinAlloc
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dw -1 ; exeMaxAlloc
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dw 0 ; exeInitSS
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dw -2 ; exeInitSP
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dw 0 ; exeChecksum
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dw 0, 0 ; exeInitCSIP
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dw 0 ; exeRelocTable
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endarea header
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align 16, db 38
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payload:
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jmp strict short entry
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db "CONFIG"
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dw 1
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db -1
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times 32 - ($ - payload) db 0
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entry: equ $
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jmp entry_common
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times 0xC0 - ($ - payload) db 0
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entry_common: equ $
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incbin _FILE
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.actual_end:
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.end:
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