*** Registers
|
*** Registers
|
GR0 *always zero
|
GR0 *always zero
|
GR1 scratch
|
GR1 scratch
|
GR2 normal return register
|
GR2 normal return register
|
GR27 Global Data Pointer (Must be set in crt0)
|
GR27 Global Data Pointer (Must be set in crt0)
|
GR30 SP stack pointer
|
GR30 SP stack pointer
|
GR31 milicode return pointer
|
GR31 milicode return pointer
|
|
|
SR* Space registers
|
SR* Space registers
|
|
|
CR24-31 Temporary Control Registers
|
CR24-31 Temporary Control Registers
|
CR14 Vector Table Register (like VBR on an m68020)
|
CR14 Vector Table Register (like VBR on an m68020)
|
CR0 Put in a count, causes exception when decremented to 0.
|
CR0 Put in a count, causes exception when decremented to 0.
|
|
|
FORTH's magic number is 031240
|
FORTH's magic number is 031240
|
|
|
***
|
***
|
Series 700/800
|
Series 700/800
|
The following options are also supported:
|
The following options are also supported:
|
|
|
-snnn set the initial system load (ISL) start address to
|
-snnn set the initial system load (ISL) start address to
|
nnn in the volume label. This is useful when
|
nnn in the volume label. This is useful when
|
building boot media for Series 700/800 systems.
|
building boot media for Series 700/800 systems.
|
|
|
-lnnn specifies the length in bytes of the ISL code in
|
-lnnn specifies the length in bytes of the ISL code in
|
the LIF volume.
|
the LIF volume.
|
|
|
-ennn set the ISL entry point to nnn bytes from the
|
-ennn set the ISL entry point to nnn bytes from the
|
beginning of the ISL. For example, specifying -
|
beginning of the ISL. For example, specifying -
|
e3272 means that the ISL entry point is 3272
|
e3272 means that the ISL entry point is 3272
|
(decimal) bytes from the beginning of the ISL
|
(decimal) bytes from the beginning of the ISL
|
object module.
|
object module.
|
|
|
-Knnn forces the directory start location to be the
|
-Knnn forces the directory start location to be the
|
nearest multiple of nnn x 1024 bytes from the
|
nearest multiple of nnn x 1024 bytes from the
|
beginning of the volume. This is necessary for
|
beginning of the volume. This is necessary for
|
booting Series 700/800 systems from LIF media.
|
booting Series 700/800 systems from LIF media.
|
|
|
-n xxx Sets the volume name to be xxx.
|
-n xxx Sets the volume name to be xxx.
|
lifinit -v64000000 -d64 -nISL10 -K2 -s4096 -l61440 -e5336 this_lif
|
lifinit -v64000000 -d64 -nISL10 -K2 -s4096 -l61440 -e5336 this_lif
|
|
|
# lifcp --
|
# lifcp --
|
# -r Forces RAW mode copying. (file type BIN (-23951))
|
# -r Forces RAW mode copying. (file type BIN (-23951))
|
# -T Sets the file type of the directory entry.
|
# -T Sets the file type of the directory entry.
|
# -Knnn forces each file copied in to begin on a nnn x
|
# -Knnn forces each file copied in to begin on a nnn x
|
# 1024-byte boundary from the beginning of the volume
|
# 1024-byte boundary from the beginning of the volume
|
# Note: the word echoed below MUST be 10 characters exactly.
|
# Note: the word echoed below MUST be 10 characters exactly.
|
#
|
#
|
(echo "FORTH ") | lifcp -r -T-030001 -K2 - this_lif:AUTO
|
(echo "FORTH ") | lifcp -r -T-030001 -K2 - this_lif:AUTO
|
|
|
|
|
#
|
#
|
# somxtract infile outfile --
|
# somxtract infile outfile --
|
# converts a series 800 file *only* into a raw image
|
# converts a series 800 file *only* into a raw image
|
|
|
It turns out the native cc and our current gcc produce series 700
|
It turns out the native cc and our current gcc produce series 700
|
output, so in this case it runs till if fills up the hard disk.
|
output, so in this case it runs till if fills up the hard disk.
|
|
|
*** rombootlf5 is a FORTH interpreter in a "boot" image. (it won't run on
|
*** rombootlf5 is a FORTH interpreter in a "boot" image. (it won't run on
|
the HP742 board)
|
the HP742 board)
|
|
|
lifls -l rombootlf5
|
lifls -l rombootlf5
|
volume ISL10 data size 249984 directory size 8 94/04/20 10:26:36
|
volume ISL10 data size 249984 directory size 8 94/04/20 10:26:36
|
filename type start size implement created
|
filename type start size implement created
|
===============================================================
|
===============================================================
|
ISL -12800 16 240 0 94/04/20 10:26:36
|
ISL -12800 16 240 0 94/04/20 10:26:36
|
HPUX -12928 256 496 0 94/04/20 10:26:37
|
HPUX -12928 256 496 0 94/04/20 10:26:37
|
IOMAP -12960 752 1504 0 94/04/20 10:26:37
|
IOMAP -12960 752 1504 0 94/04/20 10:26:37
|
AUTO -12289 2256 1 0 94/04/20 10:26:38
|
AUTO -12289 2256 1 0 94/04/20 10:26:38
|
FORTH -12960 2264 208 0 94/04/20 10:26:38
|
FORTH -12960 2264 208 0 94/04/20 10:26:38
|
HPFORTH ASCII 2472 420 0 94/04/20 10:26:38
|
HPFORTH ASCII 2472 420 0 94/04/20 10:26:38
|
BOOTROM ASCII 2896 3849 0 94/04/20 10:26:40
|
BOOTROM ASCII 2896 3849 0 94/04/20 10:26:40
|
PAD1 -12290 6752 1172 0 94/04/20 10:26:40
|
PAD1 -12290 6752 1172 0 94/04/20 10:26:40
|
|
|
*** The ISL is only needed when booting the raw hardware. As we're runing
|
*** The ISL is only needed when booting the raw hardware. As we're runing
|
on a monitor (barely) all we need is a crt0 that initiallizes the GR27
|
on a monitor (barely) all we need is a crt0 that initiallizes the GR27
|
Global Data Pointer and zero's bss.
|
Global Data Pointer and zero's bss.
|
|
|
*** Initial Program Load
|
*** Initial Program Load
|
--------------------
|
--------------------
|
From page 11-56, architecture book.
|
From page 11-56, architecture book.
|
0x00000000 +------------------------------------+ 0
|
0x00000000 +------------------------------------+ 0
|
| LIF_MAGIC | |
|
| LIF_MAGIC | |
|
0x00000004 +------------------------------------+ 4
|
0x00000004 +------------------------------------+ 4
|
| |
|
| |
|
0x000000F0 +------------------------------------+ 240
|
0x000000F0 +------------------------------------+ 240
|
| IPL_ADDR |
|
| IPL_ADDR |
|
0x000000F4 +------------------------------------+ 244
|
0x000000F4 +------------------------------------+ 244
|
| IPL_SIZE |
|
| IPL_SIZE |
|
0x000000F8 +------------------------------------+ 248
|
0x000000F8 +------------------------------------+ 248
|
| IPL_ENTRY |
|
| IPL_ENTRY |
|
0x000000FC +------------------------------------+ 252
|
0x000000FC +------------------------------------+ 252
|
| |
|
| |
|
IPL_ADDR +------------------------------------+ IPL_ADDR
|
IPL_ADDR +------------------------------------+ IPL_ADDR
|
| Position Independant |
|
| Position Independant |
|
| IPL Code |
|
| IPL Code |
|
| (including IPL_CHECKSUM) |
|
| (including IPL_CHECKSUM) |
|
+------------------------------------+ IPL_ADDR + IPL_SIZE
|
+------------------------------------+ IPL_ADDR + IPL_SIZE
|
| |
|
| |
|
+------------------------------------+
|
+------------------------------------+
|
|
|
IPL_ADDR 2 Kbyte aligned, nonzero
|
IPL_ADDR 2 Kbyte aligned, nonzero
|
IPL_SIZE Multiple of 2Kbytes, <= 256 Kbytes
|
IPL_SIZE Multiple of 2Kbytes, <= 256 Kbytes
|
IPL_ENTRY Word aligned, less than IPL_SIZE
|
IPL_ENTRY Word aligned, less than IPL_SIZE
|
|
|
Loads at IPL_START
|
Loads at IPL_START
|
|
|
This is based on Cobra/Coral hardware:
|
This is based on Cobra/Coral hardware:
|
LED register at 0xf080024
|
LED register at 0xf080024
|
I/O status register at 0xf0800000
|
I/O status register at 0xf0800000
|
EEPROM at 0xf0810000 (LAN ID begins at byte 0)
|
EEPROM at 0xf0810000 (LAN ID begins at byte 0)
|
|
|
Here's a dump of the LIF volume header using "xd" (od with hex output)
|
Here's a dump of the LIF volume header using "xd" (od with hex output)
|
|
|
*
|
*
|
00000f0 0000 1000 0000 9800 0000 0000 0000 0000
|
00000f0 0000 1000 0000 9800 0000 0000 0000 0000
|
^^^^
|
^^^^
|
This is the size
|
This is the size
|
*
|
*
|
0000800 5445 5354 2020 2020 2020 a271 0000 0010
|
0000800 5445 5354 2020 2020 2020 a271 0000 0010
|
^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^<-- this is the ipl offset
|
^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^<-- this is the ipl offset
|
this is the vol name ^^^^<- this is the type
|
this is the vol name ^^^^<- this is the type
|
|
|
0000810 0000 0098 9407 1919 1426 8001 0000 0000
|
0000810 0000 0098 9407 1919 1426 8001 0000 0000
|
^^^^
|
^^^^
|
This is the ipl size
|
This is the ipl size
|
|
|
Interupts
|
Interupts
|
---------
|
---------
|
The vector table is access by %iva (%cr14). The address here must be a
|
The vector table is access by %iva (%cr14). The address here must be a
|
multiple of 2048. The indexes are:
|
multiple of 2048. The indexes are:
|
1 high-priority
|
1 high-priority
|
2 power failure
|
2 power failure
|
3 recovery counter
|
3 recovery counter
|
4 external interrupt
|
4 external interrupt
|
5 low-priority machine check
|
5 low-priority machine check
|
6 instruction TLB miss/instruction page fault
|
6 instruction TLB miss/instruction page fault
|
7 instruction memory protection
|
7 instruction memory protection
|
8 illegal instruction
|
8 illegal instruction
|
9 break instruction
|
9 break instruction
|
10 priviledged operation
|
10 priviledged operation
|
11 priviledged register
|
11 priviledged register
|
12 overflow
|
12 overflow
|
13 conditional
|
13 conditional
|
14 assist exception
|
14 assist exception
|
15 data TLB miss fault/data page fault
|
15 data TLB miss fault/data page fault
|
16 non access instruction TLB miss fault
|
16 non access instruction TLB miss fault
|
17 non access page TLB miss fault/non access data page fault
|
17 non access page TLB miss fault/non access data page fault
|
18 data memory protection/unaligned data reference
|
18 data memory protection/unaligned data reference
|
19 data memory break
|
19 data memory break
|
20 TLB dirty bit
|
20 TLB dirty bit
|
21 page reference
|
21 page reference
|
22 assist emulation
|
22 assist emulation
|
23 higher-priority transfer
|
23 higher-priority transfer
|
24 lower-priority transfe
|
24 lower-priority transfe
|
25 taken branch
|
25 taken branch
|
|
|
