Lines Matching +full:cs +full:- +full:extra +full:- +full:delay

38  * Note - this code uses many tricks to save space and fit in one sector.
49  * bootloader) at 0:0x7c00. This code depends on %cs:%ip being 0:0x7c00
63  * made of four 16-byte entries each containing:
83  *	%cs:%ip	0:0x7c00
128 		.set B0_OFF,(B0_BASE-0x200)	# Offset of boot0 data
154 		.set _TICKS,	(PRT_OFF - 0x200 - 2)	# Timeout ticks
157 		.set TLEN, (desc_ofs - bootable_ids)	# size of bootable ids
197 		incb -0xe(%di)			# Set the S field to 1
199 		jmp main-LOAD+ORIGIN		# Jump to relocated code
250 	 * end of the loop without using an extra register (see start.5).
259 read_entry:	movb %ch,-0x4(%bx)		# Zero active flag (ch == 0)
268 	 * match; the corresponding offset to the description is $(TLEN-1)
278 	 * The byte at $(TLEN-1)(%di) contains the offset of the description
281 		addw $(TLEN-1), %di		# Adjust
296 		subb $0x80-0x1,%al		# Does next
321 	 * so we do not see an extra CRLF on the screen.
388 		je use_default			# enter -> default
391 	 * The console (non-SIO) code looks at scancodes and accepts
398 #else /*  console mode -- use scancodes */
403 		subb $(KEY_1 - KEY_F1),%al	# Less #1 scan code
453 	 * If not asked to do a write-back (flags 0x40) don't do one.
467 	 * Remember to un-ascii it. Hey 0x80 is already set, cool!
544 /* One-sector disk I/O routine */
611 	 * which is used for non-matching names.
613 		.byte os_linux-.		# 131, Linux
614 		.byte os_freebsd-.		# 165, FreeBSD
615 		.byte os_bsd-.			# 166, OpenBSD
616 		.byte os_bsd-.			# 169, NetBSD
617 		.byte os_dos-.			#   6, FAT16 >= 32M
618 		.byte os_win-.			#   7, NTFS
619 		.byte os_win-.			#  11, FAT32
622 		.byte os_ext-.			#   5, DOS Ext
625 		.byte os_dos-.			#   1, FAT12 DOS
626 		.byte os_dos-.			#   4, FAT16 <32M
628 		.byte os_misc-. 		# Unknown
664 ticks:		.word TICKS			# Delay