mirror of
https://github.com/PDP-10/its.git
synced 2026-01-22 18:42:15 +00:00
53f2a2eba9
Binary-only compiler and library, plus documentation and include files for compiling new programs.
71 lines
2.6 KiB
Plaintext
Executable File
71 lines
2.6 KiB
Plaintext
Executable File
|
|
JOBDAT as of 9 Jan 78:
|
|
.JBUUO 40 User's UUO data location; opcode and EA stored here
|
|
.JB41 41 User's UUO trap address; contains instruction to go
|
|
to user's trap routine (usually JSR or PUSHJ)
|
|
.JBERR 42 LH: unused RH: accumulated error count
|
|
.JBREL 44 LH: 0 RH: highest lowseg address
|
|
.JBBLT 45 three locations used by the loader and monitor
|
|
.JBDDT 74 LH: Last addres of DDT RH: Starting address of DDT
|
|
if 0, DDT is not loaded
|
|
.JBHRL 115 LH: length of hiseg RH: highest legal address in
|
|
hiseg, 0 => no hiseg
|
|
.JBSYM 116 LH: Negative length of RH: Base address of symbol table
|
|
symbol table
|
|
.JBUSY 117 Same format as .JBSYM, pointer to undefined symbol table
|
|
.JBSA 120 LH: Initial .JBFF value RH: Start address
|
|
.JBFF 121 LH: 0 RH: Address of first free location
|
|
in lowseg; set to .JBSA<18,18>
|
|
by RESET UUO
|
|
.JBREN 124 LH: Unused RH: REENTER start address
|
|
.JBAPR 125 LH: 0 RH: Trap address for APR traps
|
|
.JBCNI 126 APR status from CONI when APR trap taken
|
|
.JBTPC 127 PC of next instruction when APR trap taken
|
|
.JBOPC 130 Previous .JOBPC saved by DDT, REENTER, START or CSTART
|
|
In some cases this value points to the erroneous UUO,
|
|
see the reference manual.
|
|
.JBCHN 131 LH: 0 or first free loc RH: Address of first location
|
|
after FORTRAN IV after first FORTRAN IV
|
|
program BLOCK DATA program
|
|
.JBCOR 133 LH: Highest location RH: User core argument on
|
|
in lowseg loaded last GET or SAVE command
|
|
with nonzero data
|
|
.JBINT 134 LH: reserved RH: 0 or address of error
|
|
intercept block
|
|
.JBVER 137 Version number: in octal, it is given as
|
|
gVVVmm,,eeeeee
|
|
where
|
|
g is the group who last modified the program:
|
|
0 - DEC development
|
|
1 - DEC
|
|
2,3,4 - Customers
|
|
5,6,7 - Customer's users
|
|
Mostly CMU ignores this field
|
|
|
|
VVV major version number, in octal
|
|
mm minor version number.
|
|
00 => no minor version
|
|
01 => A
|
|
02 => B etc.
|
|
eeeeee edit level
|
|
prints as (eeeeee)
|
|
|
|
e.g., the .JBVER version number 103402,,4556
|
|
would print to the VERSION command as 34B(4556)-1
|
|
NOTE: if the program has ONLY a high segment, .JBHVR must be set also!
|
|
|
|
For jobs with only a high segment, the vestigial job data area
|
|
is defined as the first '10 locations of the high segment, and
|
|
the fields are (relative to .JBHGH, usually 400000):
|
|
|
|
.JBHSA 0 Copy of .JBSA
|
|
.JBH41 1 Copy of .JB41
|
|
.JBHCR 2 Copy of .JBCOR
|
|
.JBHRN 3 LH: restores LH of .JBHRL
|
|
RH: restores RH of .JBREN
|
|
.JBHVR 4 Copy of .JBVER
|
|
.JBHNM 5 High-segment name set on a SAVE (sixbit)
|
|
.JBHSM 6 Pointer to highsegment symbols, if any
|
|
7 Reserved
|
|
.JBHDA 10 First free location after vestigial job data area
|