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