Lines Matching refs:bp
66 movw $0x7c00, %bp
101 movw VolId(%bp), %ax
103 movw VolId+2(%bp), %ax
160 addw ReservedSectors(%bp), %ax # ax = FatSectorNumber = ReservedSectors + (FatOffset >> BLOCK_OFFSET)
194 movb SectorsPerCluster(%bp), %bl # bx = SectorsPerCluster
196 addw (%bp), %ax # ax = FirstClusterLBA + (StartCluster-2)*SectorsPerCluster
225 addl LBAOffsetForBootSector(%bp), %eax # Add LBAOffsetForBootSector to Start LBA
226 addl HiddenSectors(%bp), %eax # Add HiddenSectors to Start LBA
230 movw $0x7bfc, %bp # bp = 0x7bfc
233 movzwl (%bp), %ebx # bx = MaxSector
237 movw (%bp), %bx # bx = MaxSector
259 divw 2(%bp) # ax = ax / (MaxHead + 1) = Cylinder
264 movw $0x7c00, %bp # bp = 0x7c00
265 movb PhysicalDrive(%bp), %dl # dl = Drive Number
