2019-09-29 23:25:29 +02:00
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; IN DL drive number
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; BP ptr to bpb_size'd buffer
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bpb_load:
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2019-09-29 23:33:28 +02:00
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push ax
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push dx
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2019-09-29 23:25:29 +02:00
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mov [bp+(bpb_size-1)], dl
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2019-09-29 23:33:28 +02:00
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; load first sector
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2019-09-29 23:25:29 +02:00
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xor dx, dx
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xor ax, ax
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call drive_read
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2019-09-29 23:33:28 +02:00
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push cx
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push si
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push di
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; copy BPB to BP
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2019-09-29 23:25:29 +02:00
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mov si, (diskbuf+0x0B)
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mov di, bp
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mov cx, (bpb_size-1)
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rep movsb
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2019-09-29 23:33:28 +02:00
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pop di
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pop si
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pop cx
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pop dx
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pop ax
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2019-09-29 23:25:29 +02:00
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ret
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