FreeUSP Release 1.03 Patch 1
This patch contains program fixes and enhancements as follows:

Mac OS X Support (Absoft fortran compiler) -


Modifications to gmake files, Makefiles, headers, and source code to support this architecture/compiler combination.



Program segy2usp -


Corrected a serious bug in segy2usp that would alter trace sample values when SpareI2 mappings were used due to incorrect indexing.



Program etch2d -

New routine contributed by Mike O'Brien. This routine is associated with the 2d velocity model building with xsd pickfile control.



Program maip -

Changed to use DpPtLn slot in trace header if necessary for source location index * 10. This was previously stored in SGRDat slot and I needed that location for actual SEGY trace date info. Prepmig with -use_SGRDat flag can be used with old maip datasets.



Program prepmig -

First FreeUSP release of old prepmig code, which is designed to "read and analyze seismic trace headers in preparation for prestack depth migration".



Program replace -

Fixed a bug in the -hw4 option that resulted in the replacement value being inserted into the output trace in a position shifted one sample from the requested position.



Program xcat -

Cleanup of code and portability modifications.



Program specal, vxos -

Modifications to the code to allow correct color mapping across X servers on differing architectures.



Program qest -

Bring source code up to date and apply bug fix.



Program sis_xy -

For the -R option changed the -dt[] entry to reflect the man page which says this is the sample interval in ms (or us) scaled by the entry in UnitSc line header word.



Program maip2 -

Modification to make use of trace header word DpPtLn rather than SGRDat to match changes to maip and prepmig. Also cleaned up the code quite a bit.



Program genfu -

Corrected problem caused by having blank lines at the bottom of the ascii wavelet file for mode=0.



Program rmo -

Revert to non-proprietary routines. The last releast inadvertantly introduced some code proprietary to Paradigm.



Program getamp -

Removed the stderr message of normal completion since it was causing problems executing getamp within scripts extracting values.



Program vttd -

Moved from Mig subdirectory structure to main src/cmd tree to match BP location.