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cs16a.cbl
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cs16a.cbl
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ID Division.
*
* Copyright (C) 2021 Craig Schneiderwent. All rights reserved.
*
* I accept no liability for damages of any kind resulting
* from the use of this software. Use at your own risk.
*
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*
* As far as I got on day 16. I understand how to parse the
* packets, and I can do it by hand, but don't see an automatable
* pattern for dealing with the type 4 literals.
*
Function-ID. srl.
Environment Division.
Configuration Section.
Repository.
FUNCTION ALL INTRINSIC.
Data Division.
Working-Storage Section.
01 CONSTANTS.
05 myname PIC X(008) VALUE 'sll'.
Local-Storage Section.
01 WORK-AREAS.
05 divisor PIC 9(009) COMP-5 Value 0.
Linkage Section.
01 in-4-byte-int PIC 9(009) COMP-5.
01 in-nb-bits PIC 9(009) COMP-5.
01 out-4-byte-int PIC 9(009) COMP-5.
Procedure Division Using
in-4-byte-int
in-nb-bits
Returning
out-4-byte-int
.
Compute out-4-byte-int = in-4-byte-int / (2 ** in-nb-bits)
On Size Error
Display
myname ' size error '
in-4-byte-int ' ' in-nb-bits
End-Compute
Goback.
END FUNCTION srl.
ID Division.
*
* Copyright (C) 2021 Craig Schneiderwent. All rights reserved.
*
* I accept no liability for damages of any kind resulting
* from the use of this software. Use at your own risk.
*
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*
Function-ID. sll.
Environment Division.
Configuration Section.
Repository.
FUNCTION ALL INTRINSIC.
Data Division.
Working-Storage Section.
01 CONSTANTS.
05 myname PIC X(008) VALUE 'srl'.
Local-Storage Section.
01 WORK-AREAS.
05 divisor PIC 9(009) COMP-5 Value 0.
Linkage Section.
01 in-4-byte-int PIC 9(009) COMP-5.
01 in-nb-bits PIC 9(009) COMP-5.
01 out-4-byte-int PIC 9(009) COMP-5.
Procedure Division Using
in-4-byte-int
in-nb-bits
Returning
out-4-byte-int
.
Compute out-4-byte-int = in-4-byte-int * (2 ** in-nb-bits)
On Size Error
Display
myname ' size error '
in-4-byte-int ' ' in-nb-bits
End-Compute
Goback.
END FUNCTION sll.
ID Division.
*
* Copyright (C) 2021 Craig Schneiderwent. All rights reserved.
*
* I accept no liability for damages of any kind resulting
* from the use of this software. Use at your own risk.
*
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*
Function-ID. bittest.
Environment Division.
Configuration Section.
Repository.
FUNCTION ALL INTRINSIC.
Data Division.
Working-Storage Section.
01 CONSTANTS.
05 myname PIC X(008) VALUE 'bittest'.
Local-Storage Section.
01 WORK-AREAS.
05 eight-byte-int1 PIC 9(018) COMP-5 Value 0.
05 eight-byte-int2 PIC 9(018) COMP-5 Value 0.
Linkage Section.
01 in-4-byte-int PIC 9(009) COMP-5.
01 in-bit-to-test PIC 9(009) COMP-5.
01 out-4-byte-int PIC 9(009) COMP-5.
Procedure Division Using
in-4-byte-int
in-bit-to-test
Returning
out-4-byte-int
.
Move in-4-byte-int To eight-byte-int2
Compute eight-byte-int1 = 2 ** in-bit-to-test
On Size Error
Display
myname ' size error '
in-bit-to-test
End-Compute
Call 'CBL_AND' Using
eight-byte-int1
eight-byte-int2
By Value 1
End-Call
If eight-byte-int1 = eight-byte-int2
Move 1 To out-4-byte-int
Else
Move 0 To out-4-byte-int
End-If
Goback.
END FUNCTION bittest.
ID Division.
*
* Copyright (C) 2021 Craig Schneiderwent. All rights reserved.
*
* I accept no liability for damages of any kind resulting
* from the use of this software. Use at your own risk.
*
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*
Program-ID. cs16a.
Environment Division.
Configuration Section.
Repository.
Function srl
Function sll
FUNCTION ALL INTRINSIC.
Input-Output Section.
File-Control.
Select INPT-DATA Assign Keyboard.
Data Division.
File Section.
FD INPT-DATA.
01 INPT-DATA-REC-MAX PIC X(2048).
Working-Storage Section.
01 CONSTANTS.
05 myname PIC X(008) VALUE 'cs16a'.
01 WORK-AREAS.
05 ws-rec-count PIC 9(009) COMP VALUE 0.
05 inst-ptr Pic 9(009) Comp Value 1.
05 vrsn-tot Pic 9(009) Comp Value 0.
05 cli-args PIC X(080) VALUE LOW-VALUES.
05 process-type PIC X(004) VALUE LOW-VALUES.
01 WS-INPT-DATA.
05 ws-inpt PIC X(2048) VALUE SPACES.
01 SWITCHES.
05 INPT-DATA-EOF-SW PIC X(001) VALUE 'N'.
88 INPT-DATA-EOF VALUE 'Y'.
05 PROCESS-SW PIC X(004) VALUE LOW-VALUES.
88 process-test VALUE 'TEST'.
01 Instruction-Table.
05 inst-tbl occurs 1000.
10 inst-vrsn Pic 9(009) Comp-5.
10 inst-type Pic 9(009) comp-5.
Procedure Division.
Display myname Space Current-Date
Accept cli-args From Command-Line
Unstring cli-args Delimited Space Or Low-Value
Into process-type
End-UnstrinG
Move Upper-Case(process-type)
To process-sw
Open Input inpt-data
Perform 8010-Read-Inpt-Data
Close inpt-data
Perform 1000-Parse-Input
Until ws-inpt(inst-ptr:1) = Space
Display myname ' records read ' WS-REC-COUNT
Display myname Space CURRENT-DATE
GOBACK.
1000-Parse-Input.
Call 'parseit' Using
WS-INPT
inst-ptr
vrsn-tot
End-Call
.
8010-READ-INPT-DATA.
Initialize ws-inpt-data
Read Inpt-Data Into ws-inpt-data
At End Set inpt-data-eof To True
Not At End
Add 1 To ws-rec-count
End-Read
.
END PROGRAM cs16a.
ID Division.
Program-ID. parseit Recursive.
Environment Division.
Configuration Section.
Repository.
FUNCTION srl
FUNCTION sll
Function bittest
FUNCTION ALL INTRINSIC.
Data Division.
Working-Storage Section.
01 CONSTANTS.
05 myname PIC X(008) VALUE 'cs16a'.
05 zero-bit Pic 9(009) Comp-5 Value 1.
05 four-bit Pic 9(009) Comp-5 Value 4.
05 bits-2-3-4 Pic 9(018) Comp-5 Value 28.
05 bit-tbl-val.
10 .
15 Pic X(001) Value '0'.
15 Pic 9(009) Comp-5 Value 0.
10 .
15 Pic X(001) Value '1'.
15 Pic 9(009) Comp-5 Value 1.
10 .
15 Pic X(001) Value '2'.
15 Pic 9(009) Comp-5 Value 2.
10 .
15 Pic X(001) Value '3'.
15 Pic 9(009) Comp-5 Value 3.
10 .
15 Pic X(001) Value '4'.
15 Pic 9(009) Comp-5 Value 4.
10 .
15 Pic X(001) Value '5'.
15 Pic 9(009) Comp-5 Value 5.
10 .
15 Pic X(001) Value '6'.
15 Pic 9(009) Comp-5 Value 6.
10 .
15 Pic X(001) Value '7'.
15 Pic 9(009) Comp-5 Value 7.
10 .
15 Pic X(001) Value '8'.
15 Pic 9(009) Comp-5 Value 8.
10 .
15 Pic X(001) Value '9'.
15 Pic 9(009) Comp-5 Value 9.
10 .
15 Pic X(001) Value 'A'.
15 Pic 9(009) Comp-5 Value 10.
10 .
15 Pic X(001) Value 'B'.
15 Pic 9(009) Comp-5 Value 11.
10 .
15 Pic X(001) Value 'C'.
15 Pic 9(009) Comp-5 Value 12.
10 .
15 Pic X(001) Value 'D'.
15 Pic 9(009) Comp-5 Value 13.
10 .
15 Pic X(001) Value 'E'.
15 Pic 9(009) Comp-5 Value 14.
10 .
15 Pic X(001) Value 'F'.
15 Pic 9(009) Comp-5 Value 15.
05 bit-tbl
Redefines bit-tbl-val
Occurs 16
Ascending Key hex-digit
Indexed bit-tbl-idx.
10 hex-digit Pic X(001).
10 hex-bit-val Pic 9(009) Comp-5.
Local-Storage Section.
01 work-areas.
05 nb-bits Pic 9(009) Comp-5.
05 first-four-bits Pic 9(009) Comp-5.
05 second-four-bits Pic 9(009) Comp-5.
05 bit-string1 Pic 9(009) Comp-5.
05 bit-string2 Pic 9(009) Comp-5.
05 bit-string3 Pic 9(009) Comp-5.
05 bit-string4 Pic 9(009) Comp-5.
05 bit-string5 Pic 9(018) Comp-5.
05 bit-string6 Pic 9(018) Comp-5.
05 inst-vers Pic 9(018) Comp-5.
01 switches.
05 continue-sw Pic 9(009) Value 9.
88 we-must-continue Value 1.
88 we-are-done Value 0.
Linkage Section.
01 inst-string Pic X(2048).
01 inst-ptr Pic 9(009).
01 vrsn-tot Pic 9(009).
Procedure Division Using
inst-string
inst-ptr
vrsn-tot
.
Search All bit-tbl
When inst-string(inst-ptr:1) = hex-digit(bit-tbl-idx)
Move hex-bit-val(bit-tbl-idx)
To bit-string1 first-four-bits
End-Search
Move 1 To nb-bits
Move srl(bit-string1,nb-bits) to bit-string2
Add bit-string2 to vrsn-tot
Add 1 to inst-ptr
Search All bit-tbl
When inst-string(inst-ptr:1) = hex-digit(bit-tbl-idx)
Move hex-bit-val(bit-tbl-idx)
To bit-string6 second-four-bits
End-Search
Move 4 To nb-bits
Move sll(first-four-bits,nb-bits) To bit-string5
Add bit-string5 To bit-string6
Call 'CBL_AND' Using
bits-2-3-4
bit-string6
By Value 1
End-Call
Move bit-string6 To bit-string1
Move 1 To nb-bits
Move srl(bit-string1,nb-bits) To bit-string2
If bit-string2 = four-bit
Move bittest(zero-bit,second-four-bits) To continue-sw
Perform 2000-Literal
Until we-are-done
End-If
If inst-string(inst-ptr:1) Not = Space
Call 'parseit' Using
inst-string
inst-ptr
vrsn-tot
End-Call
End-If
Goback
.
2000-Literal.
Add 1 to inst-ptr
Search All bit-tbl
When inst-string(inst-ptr:1) = hex-digit(bit-tbl-idx)
Move hex-bit-val(bit-tbl-idx)
To bit-string1
End-Search
Add 1 to inst-ptr
Search All bit-tbl
When inst-string(inst-ptr:1) = hex-digit(bit-tbl-idx)
Move hex-bit-val(bit-tbl-idx)
To bit-string2
End-Search
Move 4 to nb-bits
Move bit-string6 to bit-string2
Move sll(bit-string2,nb-bits) To bit-string3
Move bittest(zero-bit,second-four-bits) To continue-sw
.