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14 Commits

Author SHA1 Message Date
JeffBezanson 3844191d70 adding the ability for the VM to use computed goto where available 
with gcc v4.3.2 I found the combination of -O2 and computed goto to give the
best performance; with -O3 performance was a little worse and computed goto
was a wash.
 2009-06-28 19:47:11 +00:00
JeffBezanson 27a3e413d3 adding opcodes loada0, loada1, loadc00, loadc01 
adding offset and count arguments to dump
 2009-06-08 03:22:32 +00:00
JeffBezanson 17752decf4 implementing support for lambdas with up to 2^32-1 required arguments 
using copy-list to implement append2
fixing bug in op_vargc when nrequired==MAX_ARGS
making fetching of multibyte numbers from bytecode portable
some cleanup in compiler
 2009-06-06 21:15:54 +00:00
JeffBezanson ae2a4dd156 adding integer division function div 
changing / to do real division always
fixing equal? to distinguish -0.0 and 0.0
making equal? and eqv? false on numbers of different exactness
 2009-05-14 01:30:25 +00:00
JeffBezanson c94774a5df adding *error-stream* variable 
removing unnecessary byte after :let in bytecode encoding
adding script for easy bootstrapping
 2009-05-05 23:51:13 +00:00
JeffBezanson de19e4f401 adding return special form 
eliminating some unnecessary top-level bindings
adding opcodes add2, sub2, neg
 2009-04-26 22:19:32 +00:00
JeffBezanson 0dc4c16276 making procedure? a builtin 
fixing type error trying to apply #t, #f, nil
 2009-04-24 20:43:56 +00:00
JeffBezanson d6f73d0bf0 implementing #vu8 read and print syntax for uint8 vectors 
much more compact string representation of bytecode
 2009-04-21 15:35:46 +00:00
JeffBezanson 25812731cc eliminating interpreter. the bytecode VM is now fully bootstrapped. 
making the empty vector a singleton
removing syntax environment stuff from core
reimplementing eval using the compiler
fixing a couple bugs in long argument lists
 2009-04-21 00:56:05 +00:00
JeffBezanson 86b7738c89 cleaning up implementation of apply() entry point 
removing use of interpreter in computed calls to builtins
 2009-04-17 03:40:52 +00:00
JeffBezanson 94814a2e34 a bug fix and a first pass at let-optimization 2009-04-16 21:20:15 +00:00
JeffBezanson ad4a086790 converting for to a special form 
adding loadi8 instruction
cleaning up numeric comparison, reducing repeated code
 2009-04-16 03:05:38 +00:00
JeffBezanson 36a209cd5f making = a builtin 
fixing = and eqv? to work properly on NaNs
fixing other comparison predicates to be consistent
 2009-04-15 23:54:43 +00:00
JeffBezanson 672558d30f bytecode vm is now working, off by default 
various bug fixes

language changes:
• constant symbols no longer shadow everything
• eval* removed
• vararg lists always allocated on entry, dotted argument
  lists not preserved

new applyn() entry point
 2009-04-15 00:12:01 +00:00