bfbbf051c9
doing a better job hashing circular structure. the hash function is now
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always fast and gives conservative correct answers, at the expense of
fidelity on medium and large size structures. for example (hash (iota 15))
gives the same result as (hash (iota 14)).
2009-05-20 03:39:20 +00:00
c2026ba77c
adding gc handles, making evaluator stack static
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this provides a better interface and could only help performance
starting to add some useful library code
2009-05-19 02:54:56 +00:00
c38c47d264
adding R6RS div, mod, div0, mod0
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small improvement to cmp_eq
explicit -fomit-frame-pointer was causing test failures with gcc4.3.2
2009-05-14 17:54:59 +00:00
e365cb1d33
adding divide by 0 check in div
2009-05-14 02:53:04 +00:00
ae2a4dd156
adding integer division function div
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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
6c549f0399
fixing hash of circular structure to avoid tree recursion (very important!!)
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simplifying vector_grow
2009-05-13 04:03:13 +00:00
77e37368c9
fixing trace and untrace
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replacing function->vector with function:code, function:vals, and
function:env
2009-05-13 01:13:40 +00:00
a7a31cf53a
fixing vararg apply to work properly
2009-05-11 23:55:40 +00:00
c94774a5df
adding *error-stream* variable
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removing unnecessary byte after :let in bytecode encoding
adding script for easy bootstrapping
2009-05-05 23:51:13 +00:00
63edc82ba4
using global variables uniformly for print settings instead of passing
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around one of them
fixing unwind-protect not to duplicate code
2009-05-05 04:01:06 +00:00
264df1f90b
improving closure representation
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some performance tweaks
2009-04-28 04:10:18 +00:00
14d625bd83
some performance tweaks
2009-04-27 03:21:53 +00:00
de19e4f401
adding return special form
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eliminating some unnecessary top-level bindings
adding opcodes add2, sub2, neg
2009-04-26 22:19:32 +00:00
0dc4c16276
making procedure? a builtin
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fixing type error trying to apply #t, #f, nil
2009-04-24 20:43:56 +00:00
909b91ffcc
fixing printing of invalid UTF-8
2009-04-23 00:22:03 +00:00
e4488bb065
some tweaks to the vm
2009-04-22 23:00:13 +00:00
27120b0ce4
fixing bug in truncate
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simplifying nconc loop
2009-04-22 15:02:49 +00:00
d6f73d0bf0
implementing #vu8 read and print syntax for uint8 vectors
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much more compact string representation of bytecode
2009-04-21 15:35:46 +00:00
305c350c56
a couple small fixes
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making bytecode representation more space-efficient
2009-04-21 14:53:18 +00:00
25812731cc
eliminating interpreter. the bytecode VM is now fully bootstrapped.
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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
5ab7a7c1e1
adding new "translucent" function type for byte-compiled lambdas
2009-04-19 22:22:17 +00:00
86b7738c89
cleaning up implementation of apply() entry point
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removing use of interpreter in computed calls to builtins
2009-04-17 03:40:52 +00:00
94814a2e34
a bug fix and a first pass at let-optimization
2009-04-16 21:20:15 +00:00
0a3590aa01
some optimizations
2009-04-16 14:21:16 +00:00
ad4a086790
converting for to a special form
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adding loadi8 instruction
cleaning up numeric comparison, reducing repeated code
2009-04-16 03:05:38 +00:00
36a209cd5f
making = a builtin
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fixing = and eqv? to work properly on NaNs
fixing other comparison predicates to be consistent
2009-04-15 23:54:43 +00:00
81641a2240
fixing glaring bug in last revision
2009-04-15 00:30:24 +00:00
672558d30f
bytecode vm is now working, off by default
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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
b9a1be78a0
implementing op_closure, fix to loadc/setc
2009-04-09 16:09:02 +00:00
debf3fd517
moving (length) out of core
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changing another recursive call to goto
adding special cases in compiler for 0 and 1 argument versions of some
vararg builtins
beginning implementation of bytecode interpreter
2009-04-09 04:04:27 +00:00
ea5d334626
some cleanup, removing some unnecessary global bindings
2009-04-08 18:17:02 +00:00
43cb51f640
replacing a recursive call with a goto; saves lots of stack space.
2009-04-07 15:55:13 +00:00
e119a66bcd
moving lognot out of core
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fixing type check in ash
2009-04-02 03:53:38 +00:00
43e8d1fbf0
adding the ability to heap-allocate extentions to the value stack,
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so recursion depth is limited only by the process stack limit.
reorganizing evaluator so the same code is used for evaluating
and pushing arguments for both builtin functions and lambdas.
for now this is slower, but it was done in preparation for
Things To Come.
adding list-head
implementing the calling convention for long argument lists in
bytecode compiler. arguments are broken down into a nest of
list and nconc calls.
also implementing vararg builtins.
2009-04-01 04:31:49 +00:00
4cb9685266
adding support for arbitrarily-long argument lists
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argument lists are heap-allocated after a certain cutoff (currently 127)
2009-03-27 03:06:55 +00:00
fe72c101e2
avoiding sprintf for error messages where possible
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moving raise, logand, logior, logxor, and ash out of core
changing prog1 to a special form
2009-03-25 02:28:21 +00:00
a9b0f7879b
removing some unnecessary stuff
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improving key-error
2009-03-23 20:44:19 +00:00
9023705d27
adding some error messages
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adding io.seek, io.copyuntil
adding #\uHHHH hex character literal read syntax
2009-03-22 02:05:26 +00:00
5edb75af2c
making nconc, assq, and memq builtins
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some small optimizations to string.map, string.trim,
string.inc, string.dec, aref
2009-03-17 03:29:17 +00:00
5681745bc3
adding apply1, using it in trycatch (avoids consing)
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allowing left bit shift to overflow to larger types
fixing bug in number->string on uint64
fixing bug in rand.uint64
2009-03-13 22:26:44 +00:00
bfa30fb095
allowing logand, logior, logxor to accept any number of arguments
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adding negative?, positive?, zero?, even?, odd?, for-each
adding *linefeed*, terpri
2009-03-12 02:47:34 +00:00
d81e6c2d57
adding ash function
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making more functions static
removing list_nth, using vectors for enums instead
making more operators return fixnums where possible
2009-03-11 19:16:40 +00:00
05ef9f42a5
simplifying (string) to just princ-to-string
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small printing improvements
2009-03-11 14:52:37 +00:00
40cff81550
more reorganization of LLT
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adding io.readuntil, io.readline
improvements to ios_readprep
2009-03-03 03:16:30 +00:00
c1610f0a9f
changing load to expand each expression before evaluating
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improve performance by reloading system.lsp with this loader
other misc. changes
2009-02-26 18:15:38 +00:00
6c56120669
better solution for allowing an input stream to be relocated while
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reading from it
improving prettyprinting of lists of short strings
2009-02-24 02:21:16 +00:00
3aad0bd6be
fixing some bugs in lerror and read
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making memory errors non-consing (duh)
cleaning up main() a bit
adding case macro, moving other stuff around a bit
2009-02-20 05:11:05 +00:00
0c0471e856
moving implementation of startup, repl, load, and top-level
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exception handler into system.lsp
adding several iostream functions
adding support for internal define
2009-02-19 03:31:40 +00:00
1097597437
file stream creation and io.read
2009-02-09 03:22:31 +00:00
2c1bb59486
adding integer? and number->string
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a bit more renaming
2009-02-01 05:41:43 +00:00
JeffBezanson