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| author | tlatorre <tlatorre@uchicago.edu> | 2019-09-24 17:30:59 -0500 |
|---|---|---|
| committer | tlatorre <tlatorre@uchicago.edu> | 2019-09-24 17:30:59 -0500 |
| commit | 77b629ef03eb3154b47999847276e72447d22282 (patch) | |
| tree | 10434236fd8a8386e43214f19694ca341acf4ae4 /src/zebra.c | |
| parent | 1e35deac8fc248cb9a2a25e383604fd433480720 (diff) | |
| download | sddm-77b629ef03eb3154b47999847276e72447d22282.tar.gz sddm-77b629ef03eb3154b47999847276e72447d22282.tar.bz2 sddm-77b629ef03eb3154b47999847276e72447d22282.zip | |
update zebra code to store location of MAST bank
This commit updates the zebra code to store a pointer to the first MAST bank in
the zebraFile struct so that we can jump to it when iterating over the logical
records. I had naively assumed based on the documenation in the SNOMAN
companion that the first bank in a logical record was guaranteed to be a MAST
bank, but that doesn't seem to be the case. This also explains why I was
sometimes seeing RHDR and ZDAB banks as the first bank in a logical record.
Diffstat (limited to 'src/zebra.c')
| -rw-r--r-- | src/zebra.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/zebra.c b/src/zebra.c index a3a068f..5e02310 100644 --- a/src/zebra.c +++ b/src/zebra.c @@ -187,6 +187,7 @@ static int rewrite_links(zebraFile *z) offset = z->lr_offset*4; + z->mast_bank = -1; while (offset < z->lr_size) { io = unpacki32(z->buf+offset); offset += 4; @@ -199,6 +200,12 @@ static int rewrite_links(zebraFile *z) rv = zebra_get_bank(z, &b, offset/4); + if (!strncmp(b.name,"MAST",4)) { + if (z->mast_bank != -1) + fprintf(stderr, "Warning: found more than one MAST bank in a single logical record!\n"); + z->mast_bank = offset/4; + } + if (rv) return rv; /* Rewrite the next, up, and orig pointers. */ |