Pressing Ohead in 49+ discards the new 49+ header and creates additional space for stack display. In font size 8 one gets in this way up to 9 stack levels in the screen, and up to10 stack levels in font size 7. Other font sizes are not handled by Ohead.
Version 1.2003: Program size reduced. Clock switchted off while header is used for stack display (1st version November 2003).
Examples. The screen shot at left displays a segment of the Ohead program Level 2 and 3 contain messages without string delimiters. Normally, one would see only the program but nothing else from the stack. The screen at right displays the last 10 messages from the built-in library 1. Both screens are in font size 7, not with the ugly standard font 7 but with LFont from this site. You get all messages of library 1 by pressing LstM from Msgman on number 1 in the stack.
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Wolfgang Rautenberg
raut@math.fu-berlin.de
www.math.fu-berlin.de/usr/raut