Lines Matching refs:bx
177 movw $0007,%bx
200 subw $4, %bx # LILO loads 4 sectors of setup
201 shlw $8, %bx # convert to words (1sect=2^8 words)
202 movw %bx, %cx
203 shrw $3, %bx # convert to segment
204 addw $SYSSEG, %bx
205 movw %bx, %cs:start_sys_seg
368 movw %bx, %dx # are more reasonable anyway...
389 xorw %bx, %bx
486 movw %cs:start_sys_seg, %bx # start of source segment
491 movw %bx, %ds # source segment
492 addw $0x100, %bx
498 cmpw %bp, %bx # assume start_sys_seg > 0x200,
641 xorw %bx, %bx # Flag to indicate a boot