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********************* IBIS GOLDEN PARSER BUG REPORT FORM *********************
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INSTRUCTIONS

To report a bug in the IBIS golden parser.  Please fill out the top part
of the following form and send the complete form to info@ibis.org.

A list of reported bugs is maintained at http://ibis.org/bugs/ibischk/ .

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PARSER VERSION NUMBER: 6.1.4

PLATFORM (SPARC, HP700, PC, etc.): All

OS AND VERSION: All

REPORTED BY: Bob Ross, Teraspeed Labs

DATE: August 5, 2018

DESCRIPTION OF BUG:
Illegal Language IBIS-ISS Argument Not Reported for [IBIS Ver] Less than 6.0

The argument IBIS-ISS was introduced in [IBIS Ver] 6.0. If [IBIS Ver] is less
than 6.0, Language IBIS-ISS should be reported as an E0136, as previously
reported.

Note, the test case is for [External Circuit]. The issue also exists for
[External Model] (see and modify BUG190 to test).

The Invalid Language and other messages that are reported with ibischk5
should be restored for checking compatibility. This BUG report deals with
a functional change introduced in the Version 6.0.0 release. 

(Note, the test case originally dealt with another potential problem, but
this other problem was due to the cascaded effects of the Language IBIS-ISS
line being unsupported in the [IBIS Ver] 4.2 in the test file and could
have been resolved by changing to [IBIS Ver] 6.0.)

Correct Report with the latest ibischk5:
----------------------------------------

IBISCHK5 V5.1.4

Checking bug198.ibs for IBIS 4.2 Compatibility...

E0136 (line   29) - Invalid Language ("IBIS-ISS") (try "SPICE, VHDL-AMS, VHDL-A(MS), Verilog-AMS, Verilog-A(MS)")
E0138 (line   31) - Missing Language sub-parameter. Language must be defined
E0154 (line   36) - Language must be defined before A2D
E1817 - Circuit Call Line 23 instantiates  External Circuit at 28 with Floating Internal Node <A_Out> type AMS_UNKNOWN 

Errors  : 4

File Failed

Incorrect Report introduced with ibischk6 Version 6.0.0:
--------------------------------------------------------

IBISCHK6 V6.0.0

Checking bug198.ibs for IBIS 4.2 Compatibility...

Errors  : 0

File Passed

INSERT IBIS FILE DEMONSTRATING THE BUG:

|****************************************************************
[IBIS Ver]   4.2 | Error should be reported for any version < 6.0
|
[File Name]  bug198.ibs
[File Rev]   0.1
[Date]       August 5, 2018
[Source]     Originally from Arpad Muranyi, modified by Bob Ross
|
[Component]    BUG198
[Manufacturer] None
|
[Package]
R_pkg   0.0    0.0    0.0    
L_pkg   0.0    0.0    0.0   
C_pkg   0.0    0.0    0.0  
|
[Pin]    signal_name     model_name      R_pin  L_pin  C_pin
1        Tx              CIRCUITCALL
100      Vcc             POWER
200      GND             GND
|
|****************************************************************
[Circuit Call]  BUG198
Signal_pin  1
Port_map  A_signal  1
[End Circuit Call]
|****************************************************************
[External Circuit]  BUG198
Language  IBIS-ISS | ** Not introduced until IBIS Version 6.0
|
Corner Typ dummy.sp  Dummy
|
Ports  A_signal  A_Out
|
|A_to_D  d_port     port1  port2  vlow  vhigh  corner_name
A_to_D   D_receive  A_Out  A_gnd  0.9   1.1    Typ
|
[End External Circuit]
|****************************************************************
[End]


|*** add dummy.sp for compatibility with future parser checking ***

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******************** BELOW FOR ADMINISTRATION AND TRACKING *******************
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BUG NUMBER:                                                 198

SEVERITY: [FATAL, SEVERE, MODERATE, ANNOYING, ENHANCEMENT]  SEVERE

PRIORITY: [HIGH, MEDIUM, LOW]                               MEDIUM

STATUS: [OPEN, CLOSED, WILL NOT FIX, NOT A BUG]             CLOSED

FIXED VERSION:  6.1.5

FIXED DATE:    December 21, 2018 


NOTES ON BUG FIX:
Processed at the IBIS Open Forum Meeting on August 10, 2018.
To be fixed in a future release.


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