Lines Matching refs:xor
63 xor %ax, %ax
78 xor %dh, %dh // head 0, don't change BIOS boot device
100 xor %dx, %dx // boot device ID and partition offset to 0
101 xor %eax, %eax
148 xor %ax, %ax // only read up to the 64kB boundary
160 xor %ax, %ax
173 xor %ah, %ah
196 xor %dh, %dh // next cylinder
209 xor %ax, %ax
214 xor %al, %al
221 xor %bx, %bx
265 xor %ax, %ax // set up stack at 0x0000:0x9000