93 lines
1.1 KiB
PHP
93 lines
1.1 KiB
PHP
CMOS_ADDRESS = 0x70
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CMOS_DATA = 0x71
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CMOS_REG_SECOND = 0x00
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CMOS_REG_MINUTE = 0x02
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CMOS_REG_HOUR = 0x04
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COM1 = 0x3F8
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klog_print:
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mov dx, COM1
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@@:
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lodsb
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or al, al
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jz @f
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out dx, al
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jmp @b
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@@:
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ret
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klog_print_date:
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@@:
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mov al, 0x0A
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out CMOS_ADDRESS, al
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in al, CMOS_DATA
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and al, 0x80
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jnz @b
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mov al, CMOS_REG_HOUR
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out CMOS_ADDRESS, al
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in al, CMOS_DATA
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mov ah, al
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shr ah, 4
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and ah, 0xF
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and al, 0xF
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add ah, 0x30
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add al, 0x30
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mov [szTime + 1], ah
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mov [szTime + 2], al
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mov al, CMOS_REG_MINUTE
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out CMOS_ADDRESS, al
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in al, CMOS_DATA
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mov ah, al
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shr ah, 4
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and ah, 0xF
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and al, 0xF
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add ah, 0x30
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add al, 0x30
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mov [szTime + 4], ah
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mov [szTime + 5], al
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mov al, CMOS_REG_SECOND
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out CMOS_ADDRESS, al
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in al, CMOS_DATA
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mov ah, al
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shr ah, 4
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and ah, 0xF
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and al, 0xF
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add ah, 0x30
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add al, 0x30
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mov [szTime + 7], ah
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mov [szTime + 8], al
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push esi
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mov esi, szTime
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call klog_print
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pop esi
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ret
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;; Function: klog
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;; Output kernel log
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klog:
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call klog_print_date
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call klog_print
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mov esi, szCRLF
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call klog_print
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ret
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szTime db '[00:00:00] ', 0
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szCRLF db CR, LF, 0
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