DIGITAL-LOGIC MICROSPACE MSM800SEV, Technical User'S Manual

Page: 77 / 92

DIGITAL-LOGIC AG
MSM800 SEV Manual V1.0A
77
Checkpoint Function Name Intermediate
Codes
Function Description
OAh memRAMoptimize --- SDRAM optimization for CPU speed
013h cacheInit --- Autosize and initialize Cache
CFh Cache failed to size to 16 K113 (i.e., 013h failed)
OCh northBridgelnit --- Load Geode North Bridge PCI register space
E8h Begin register initialize
ODh chipsetInit --- Load CS55xO with values aka south bridge
EO Begin register initialize
OEh sioTest --- SIO test/initialize
60h SIO test entry
61h SIO present / register initialize
6Eh SIO test exit
OFh pcATjunk --- Various PC/BIOS compatibility pieces
10h intTable --- Set up generic interrupt table
16h equip-check Set up BDA for installed hardware
Ilh memInfo --- Query memory controller for RAM size, and store it
14h keyboardInit --- Wakeup the keyboard controller
12h romCopy --- SMI Handler, video, keyboard, hard drives, splash
screen, LCD
DOh Get shadow ready for copy
Dlh Decompress all images
D2h Call SMI Handler initialization code
D3h Return from SMI Handler initialize VGA BIOS
D4h Initialize LCD Panel
D5h Display splash screen
D6h Hard Disk Drive Initialize
D7h System option ROM scan and initialize / PC132 fixup
DEh romCopy exit
15h gxmCacheOff
gxmCacheOn --- Wiggle cache - if MTEST enabled, cache remains off
82h EquipmentCheck --- Additional BDA initialization, CMOS initialization
17h pciScan --- Scan PCI bus and enumerate
18h optionRomlnit --- Scan and call options ROMs from C800-EFFO
19h ResetLimits --- Reset all descriptors to real mode I MB size
81h UserPostInit --- User added code to be run right before boot
lAh Summary-screen --- Display summary screen
113h --- --- Attempt to boot via INT 18h then INT 19h
lFh --- --- Boot failure - XpressROM halted