Add assembler code for more architectures: powerpc, m68k, hppa (all big endian) #411
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This fails on the big-endian variant (which is abiversion 1)
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This adds the zsvjmp() code for a number big endian architectures:
The latter architecture did just require to remove the
.abiversion 2, from its little endian code, as this is not really required.The code is taken from older IRAF versions and adopted with some help of Debian people: John David Anglin (HP-PA), Andreas Schwab (m68k) and Adam Sampson (m68k).
While this lets the code compile on these architectures, the tests fail, and so they remain unsupported. See #410 for details.
Also, the code will probably not run on PowerPC Macs; they originally used different code).
Compilation and testing was done on Debian experimental, see the build logs for iraf_2.18.1~rc1-3~5.