# This patch fixes a bug where the tek2plot program misinterprets # optimized Tek4014 datastreams which update LoY without sending # the ExtraByte also. # This patch has been submitted FSF: # From: "Poul-Henning Kamp" # Subject: Re: Bug in plotutils-2.5.1::tek2plot # To: bug-gnu-utils@gnu.org # Message-Id: <15929.1226142709@critter.freebsd.dk> # Date: Sat, 08 Nov 2008 11:11:49 GMT ####################################################################### diff -ur tek2plot/tek2plot.c tek2plot/tek2plot.c --- tek2plot/tek2plot.c 2008-07-16 04:00:16.000000000 +0000 +++ tek2plot/tek2plot.c 2008-11-08 11:04:49.000000000 +0000 @@ -559,7 +559,7 @@ int temp_three = 0; /* following variables are saved from point to point */ - static int saved_lo_y = 0, saved_hi_x = 0, saved_hi_y = 0; + static int saved_lo_y = 0, saved_hi_x = 0, saved_hi_y = 0, saved_egm = 0; static bool margin_reset = false; int byte_read, type; @@ -709,10 +709,12 @@ lo_y = got_lo_y ? lo_y : saved_lo_y; hi_x = got_hi_x ? hi_x : saved_hi_x; hi_y = got_hi_y ? hi_y : saved_hi_y; + egm = got_egm ? egm : saved_egm; saved_lo_y = lo_y; saved_hi_x = hi_x; saved_hi_y = hi_y; + saved_egm = egm; /* On a genuine Tektronix 4014, the MSB of the 5-bit EGM byte sets the margin to equal Margin2 (2048) */