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Mesa 6.0u Change Summaryy756qjk40\b24B
Page Numbers: Yes  X: 527  Y: 10.5"qjk40
c Xerox Corporation 1980l4445y45c\f3 1f0
Inter-Office Memoranduml4445y762\f5b
To	Mesa Users	Date	July 11, 1980l4445d2998e21(0,65535)(1,4445)(5,11684)(6,14146)\f7 2f0t2 1t0 10t6 1f7t0 4f0t7 1t0
From	Richard Johnsson	Location	Palo Altol4445d2998y716e25\f7 4f0t2 1t0 16t6 1f7t0 8f0t7 1t0
Subject	Mesa 6.0u Change Summary	Organization	SDD/SS/Mesal4445d2998e25\f7 7f0t2 1t0b24t6B1f7t0 12f0t7 1t0
XEROX       l508y644e14(2116)\f2 5f0
Filed on: [Igor]<AlphaMesa>Doc>Summary60u.bravoe30(0,16263)(1,65535)(5,65535)(6,65535)\f7 47f0
e10(2116)
This memo outlines changes made in Mesa since the last alpha update (Mesa 60.t, June 11, 1980).  It contains changes from the documents contained in that update (those documents are also being updated to correctly reflect the differences between Mesa 5.0 and Mesa 6.0).  As Mesa60u.press this document also includes documentation of two new Debugger tools and a list of ARs fixed since 6.0t.x2e12jk40(1799)
Languagee18jk80\b
The language extensions to Mesa 5.0 have been modified in the following areas:x2e12jk40
DIRECTORY clauses have an additional form for dealing with parameterization.l4269x2e12jk40\f7 9f0
Uncounted zones have been modified.l4269x2e12jk40
The type specification StringBody[n] describes a STRING of n characters (n need not be a constant); it can be only used with NEW and SIZE.l4269x2e12jk40\23f6 13f0 13f7 6f0 4f6 1f0 13f6 1f0 51f7 3f0 5f7 4f0
The Mesa 6.0 Compiler Update has been updated with complete descriptions of these changes.x2e12jk40
Systeme18jk80\b
All of the system interfaces have been recompiled for 6.0u.  This means that all modules must be recompiled/rebound to use the new Mesa.image.  No source changes are necessary.  Several new interface items and defaults were added.  Additions include:x2e12jk40
ForgotDefs: all item are now in SegmentDefs and copied into ForgotDefs for temporary compatibility.  You should remove references to ForgotDefs as soon as possible.l4269x2e12jk40\f6 10f0 22f6 11f0 17f6 10f0 63f6 10f0
FrameDefs.LoadConfig added.l4269x2e12jk40\f6 20f0
Process/ProcessDefs.Aborted = ABORTED.l4269x2e12jk40\f6 37f0
SegmentDefs.DefaultBaseN (N IN [0..3]) added.l4269x2e12jk40\f6 24f0
Debuggere18jk80\b
In addition to many bug fixes and some performance improvements, the following changes or additions have been made:x2e12jk40
AScii Display [address, count] is equivalent to interpreting
LOOPHOLE[address, POINTER TO PACKED ARRAY OF CHARACTER][0!count].l4269x2e12jk40\f8 30f0 31f8 64f0
ATtach Condition [BreakPoint#, Condition] changes a normal breakpoint into a conditional breakpoint.  Restrictions on conditions are as in the Mesa 5.0 debugger.  The interpreter evaluates conditions at attach time in the context of the breakpoint.l4269x2e12jk40\f8 41f0
ATtach Keystrokes replaces ATtach Expression.l4269x2e12jk40\f8 17f0 10f8 17f0
ATtach Loadstate [imageFile] attaches the initial loadstate of an image file rather than the current loadstate.  This command is for wizards only.  Don't worry if you don't understand.l4269x2e12jk40\f8 28f0
CLear Break [BreakPoint#] clears breakpoints by number.  Typing <return> instead of a number will clear the current breakpoint, i.e. the one that got you into the debugger.l4269x2e12jk40\f8 25f0
CLear Condition [BreakPoint#] changes a conditional breakpoint into a normal breakpoint.  Typing <return> acts the same as in Clear Break.l4269x2e12jk40\f8 29f0
CLear Keystrokes [BreakPoint#] undoes ATtach Keystrokes.  Typing <return> acts the same as in Clear Break.l4269x2e12jk40\f8 30f0 8f8 18f0
-- comments can now be entered in display stack and display process modes.l4269x2e12jk40\f8 2f0
Type REAL is supported for output only.  You cannot type in or do arithmetic on REALs.l4269x2e12jk40\5f8 4f0 71f8 4f0
Variables declared in nested blocks are shown indented according to the nesting level in display stack mode.l4269x2e12jk40
"?" in a variable display now uniformly means that the value is out of range; ". . ." is used to indicate that there are additional fields which cannot be displayed due to lack of symbols.l4269x2e12jk40\79f8 5f0
Debugger User Interfacee18jk80\b
The method for invoking scrollbars remains the same but, the scrollbars themselves are twice as wide and you can "see through" them.x2e12jk40\132i
The keyset edit functions are now also available on the keyboard as control characters:x2e12jk40
Ctrl-C	-- Cut
Ctrl-F	-- Paste
Ctrl-K	-- Replace/Next
Ctrl-N	-- Next
Ctrl-R	-- Replace
Ctrl-S	-- Stuffl4268x2e12jk40\101i
Note that edit functions are available only if the window is editable.x2e12jk40\61i8I
Reporting Debugger Problemse18jk80\b
There is a new command in "//" mode to aid in collecting data for reporting debugger problems:x2e12jk40\27f8 2f0
Trace Stack dumps the debugger's call stack in octal.l4269x2e12jk40\f6 11f0
ARs reporting debugger problems that result in uncaught signals or entering "//" mode for any other reason should be accompanied by a debug log which includes the output of this command.x2e12jk40\77f8 2f0
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Distribution:
Mesa Users
Mesa Group
SDSupportl3528d2998x2e12k40(2116)