Log of /see/trunk/doc/BYTECODE.txt

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Revision 1416 - (view) (download) (annotate) - [select for diffs]
Modified Sun Apr 26 04:54:58 2009 UTC (16 months, 1 week ago) by d
File length: 22654 byte(s)
Diff to previous 1415

New ENDF code to disambiguate abnormal termination of finally blocks.
Closes bugs 131 and 132.

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Revision 1415 - (view) (download) (annotate) - [select for diffs]
Modified Sun Apr 26 02:45:25 2009 UTC (16 months, 1 week ago) by d
File length: 22039 byte(s)
Diff to previous 1334

Clean up the way the code1 back-end manages finally and catch blocks.
 - Introduces new instruction S.CATCH which is called at the beginning of
   a catch handler to set up a 'with' context.
 - Changes the way that END,x is defined. It is now a single-action instruction
   that does advances the PC only if there is nothing to do.

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Revision 1334 - (view) (download) (annotate) - [select for diffs]
Modified Sun Feb 3 00:16:39 2008 UTC (2 years, 7 months ago) by d
File length: 15507 byte(s)
Diff to previous 1331

Bug 117: Function expression property had wrong attributes (bytecode only)

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Revision 1331 - (view) (download) (annotate) - [select for diffs]
Modified Fri Jan 25 22:01:43 2008 UTC (2 years, 7 months ago) by d
File length: 15406 byte(s)
Diff to previous 1258

Tidy up the bytecode documentation; minor corrections

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Revision 1258 - (view) (download) (annotate) - [select for diffs]
Modified Fri Jun 22 16:14:31 2007 UTC (3 years, 2 months ago) by d
File length: 13786 byte(s)
Diff to previous 1228

Replace VAR and PUTVAR instructions with VREF.
Using VREF saves a LOOKUP call. Variable references are tracked in the parser.
The code interface was changed to allow communication of variable identifiers
to the backend. VREF simply builds a reference to a local variable.

Known problem: getting a spurious seg fault from see-shell.static.

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Revision 1228 - (view) (download) (annotate) - [select for diffs]
Modified Wed May 30 16:40:51 2007 UTC (3 years, 3 months ago) by d
File length: 13629 byte(s)
Diff to previous 1226

More code generator work.

- Provided separate opcodes for <,>,<=,>= because I found the the semantics
  too hard to untangle when comparing NaNs!
- Added a FUNC instruction to bind a function object to a scope.
- Distinguished between Program bodies and Function bodies for evaluation.
  This makes returning undefined from functions easier to do during 
  eval/codegen. Added a test case.
- added a disassembler to code1
- renamed the code interface method 'eval' to 'exec'.

try/with/enum still not working in codegen.

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Revision 1226 - (view) (download) (annotate) - [select for diffs]
Modified Tue May 29 12:12:21 2007 UTC (3 years, 3 months ago) by d
File length: 13340 byte(s)
Diff to previous 1223

Continued work on the code generator.

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Revision 1223 - (view) (download) (annotate) - [select for diffs]
Added Sat May 5 14:23:49 2007 UTC (3 years, 4 months ago) by d
File length: 9941 byte(s)

document the intermediate instuction set