Lines Matching +full:clear +full:- +full:bit

33  * separate PXE-aware client just to load the loader.
51 		.set MEM_BIOS_KEYBOARD,0x496	# BDA byte with keyboard bit
66 		.set SEL_SCODE,0x18		# PM-32 code
67 		.set SEL_SCODE16,0x20		# PM-16 code
73  * Bit in MEM_BIOS_KEYBOARD that is set if an enhanced keyboard is present
93 		andl $0xffff, %ecx		# clear upper words
98 		movw $welcome_msg, %si		# %ds:(%si) -> welcome message
103 		movw $bootinfo_msg, %si		# %ds:(%si) -> boot args message
105 		movw $MEM_ARG, %bx		# %ds:(%bx) -> boot args
106 		movw %bx, %di			# %es:(%di) -> boot args
108 		movw $(MEM_ARG_SIZE/4), %cx	# Size of arguments in 32-bit
110 		rep				# Clear the arguments
112 		orb $KARGS_FLAGS_PXE, 0x8(%bx)	# kargs->bootflags |=
114 		popl 0xc(%bx)			# kargs->pxeinfo = *PXENV+
117  * set the RBX_SERIAL bit in the howto byte.
151 		ljmp $SEL_SCODE,$pm_start	# long jump to clear the
152 						#  instruction pre-fetch queue
159 		addl $(MEM_PAGE_SIZE - 1), %edi	# pad %edi out to a new page
160 		andl $~(MEM_PAGE_SIZE - 1), %edi #  for the data segment
170 		movl end+AOUT_ENTRY, %esi	# %esi -> relocated loader
171 		addl $MEM_BTX_OFFSET, %esi	# %esi -> BTX in the loader
172 		movl $MEM_BTX_ADDRESS, %edi	# %edi -> where BTX needs to go
173 		movzwl 0xa(%esi), %ecx		# %ecx -> length of BTX
176 		ljmp $SEL_SCODE16,$pm_16	# Jump to 16-bit PM
184 		ljmp $0,$pm_end			# Long jump to clear the
185 						#  instruction pre-fetch queue
195 		movw $(btx_client_end-btx_client), %cx # length of btx client
220  * Display a null-terminated string
235  * legacy-free and simply doesn't have a keyboard controller.
239 		xor %cx,%cx			# Clear
259 btx_client:	movl $(MEM_ARG_BTX-MEM_BTX_CLIENT+MEM_ARG_SIZE-4), %esi
260 						# %ds:(%esi) -> end
268 		pushl MEM_ARG_BTX-MEM_BTX_CLIENT+MEM_ARG_SIZE # Entry point of
283 		.word 0xffff,0x0,0x9a00,0xcf	# SEL_SCODE (32-bit)
284 		.word 0xffff,0x0,0x9a00,0x8f	# SEL_SCODE16 (16-bit)
287  * Pseudo-descriptors.
289 gdtdesc:	.word gdt.1-gdt-1		# Limit