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39 rader
1.4 KiB
39 rader
1.4 KiB
BITS 16
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; THIS LIBARY IS IN REALLY BAD SHAPE
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; Power_off is okay to use
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power_check:
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;perform an installation check
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mov ah,53h ;this is an APM command
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mov al,00h ;installation check command
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xor bx,bx ;device id (0 = APM BIOS)
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int 15h ;call the BIOS function through interrupt 15h
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call printCRLF
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call dumpax
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;jc APM_error ;if the carry flag is set there was an error
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;the function was successful
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;AX = APM version number
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;AH = Major revision number (in BCD format)
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;AL = Minor revision number (also BCD format)
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;BX = ASCII characters "P" (in BH) and "M" (in BL)
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;CX = APM flags (see the official documentation for more details)
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ret
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power_enable:
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;Enable power management for all devices
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mov ah,53h ;this is an APM command
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mov al,08h ;Change the state of power management...
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mov bx,0001h ;...on all devices to...
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mov cx,0001h ;...power management on.
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int 15h ;call the BIOS function through interrupt 15h
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;jc APM_error ;if the carry flag is set there was an error
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ret
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power_off:
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;actual shutdown command
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mov ah, 0x53
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mov al, 0x07
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mov bx, 0x1
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mov cx, 0x3
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int 0x15
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ret
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