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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 ibis-bug@eda.org.

A list of reported bugs will be maintained on eda.org.

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PARSER VERSION NUMBER: 5.0.7

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

OS AND VERSION: Windows 7

REPORTED BY: Lance Wang, IO Methodology, Randy Wolff, Micron Technology,
             Bob Ross, Teraspeed Consulting Group

DATE: October 14, 2011

DESCRIPTION OF BUG:

From Versions 5.0.4 through Version 5.0.6, the [Ramp] subparameter test for
dV/dt_r and dV/dt_f can cause ibischk5 to stop working and cause Windows to
close the program when the subparameters are entered illegally due to
case-sensitive mistakes (e.g, dv/dt_r).  (The correct Error messages are
issued before the ibischk5 is terminated.)

This BUG appears to have been introduced when BUG107 was first addressed
in Version 5.0.7 for some added dV value checks.

The test case demonstrates one case, but many combinations of case-sensitive
errors cause the same unexpected program closure.


INSERT IBIS FILE DEMONSTRATING THE BUG:

|**************************************************************************
|
[IBIS Ver]    5.0
[File name]   bug130.ibs
[Date]        October 13, 2011
[File Rev]    1.0 
[Source]      From silicon level SPICE model
[Notes]       This is a dummy IBIS file for bug testing
[Disclaimer]  provided as is
|***************************************************************************
|                       COMPONENT: BUFFERHODLER
|***************************************************************************
|
[Component]     BUG130_TEST
[Manufacturer]  TestCase
[Package]
|              typ         min          max
R_pkg          0           0            0
L_pkg          0           0            0
C_pkg          0           0            0
|
[Pin]  signal_name model_name   R_pin        L_pin        C_pin
1      Signal      Model1    0    0    0
|
|***************************************************************************
|
[Model]    Model1
Model_type   Output

Vmeas = 1.65
Vref = 1.65
Cref = 15pF
Rref = 50
|
|                          typ          min          max
C_comp                     2.588e-012   2.373e-012   2.656e-012
|
[Voltage Range]            3.3          3.1          3.5          
|
|***************************************************************************
|
[Pulldown]
|
|
|   Voltage          I(typ)             I(min)             I(max)             
|
    0                -3.38738e-008      -6.87524e-009      -6.36258e-008      
    1.96             0.0253159          0.0180257          0.0311249          
    6.6              0.0269179          0.0192363          0.0329351          
|
[Pullup]
|
|   Voltage          I(typ)             I(min)             I(max)             
|
    0                -1.00312e-008      -1.00249e-008      -7.29422e-009      
    2.0405           -0.024349          -0.0166121         -0.0303963         
    6.6              -0.0305378         -0.0210585         -0.0376153         
|
|***********************************************************************
|
[Ramp]
|
|                 typ                      min                      max
|
dv/dt_r    0.732026/1.62512e-009  0.504507/2.22397e-009   0.90718/1.39336e-009
dV/dt_f    0.760214/1.73429e-009  0.542235/2.45827e-009  0.933557/1.45171e-009
|
|************************************************************************
|
[End]


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******************** BELOW FOR ADMINISTRATION AND TRACKING *******************
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BUG NUMBER:  130

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

PRIORITY: [HIGH, MEDIUM, LOW]                               HIGH

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

FIXED VERSION: Version 5.0.7

FIXED DATE:    October 28, 2011

NOTES ON BUG FIX:
    To be classified at the IBIS Teleconference Meeting On October 28, 2011

    Due to its severity (based on an ibischk5 crash for a check that has
    previously worked for all versions prior to 5.0.4) and due to the
    simplicity of the fix, the correction was inserted in the Version 5.0.7
    release that was in progress and prior to the official classification of
    BUG130

The parser developer documented this fix:

if( !pMdl->pRamp->pD_r )
  {
	  return 1;
  }

  if( !pMdl->pRamp->pD_f )
  {
	  return 1;
  }

in the file acdc.c in the function acdc_CheckModelProcessRamp



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