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135 Commits

Author SHA1 Message Date
Jesse D. McDonald 988d4264b2 Improve representation of tail-calls, and normalize primitive operations. 2012-07-14 13:43:45 -05:00
Jesse D. McDonald fd17fcd99c Update compiler description (now a working Scheme program). 
Maps lexical variables, decodes argument lists, and flattens procedures
to simple lists of primitive operations, but does not yet convert to
CPS or perform register (gN, iN, fN) allocation, much less optimization.
 2012-07-14 13:43:40 -05:00
Jesse D. McDonald 885a1ebdbb Fix a missing-root error in interp.c:perform_tail_call(). 2012-07-14 13:43:39 -05:00
Jesse D. McDonald 9f351abd86 Commit simple script to run regression tests: src/examples/test-*.rla. 2012-07-14 13:43:38 -05:00
Jesse D. McDonald 314e167e6e Commit initial notes on compilation from Scheme-like source code. 2012-07-14 13:43:37 -05:00
Jesse D. McDonald f542fa2bd5 Add bytecodes to skip the rest of a block based on a condition. 
Should simplify error-handling and sequences of primitive tests.
Also, automatically instantiate templates used in the tail-call lambda & cont'n fields.
 2012-07-14 13:43:33 -05:00
Jesse D. McDonald 6dd02a5d6e Stop reading at EOF, and signal an error when EOF occurs inside a string. 2012-07-14 13:43:32 -05:00
Jesse D. McDonald 7e5014ab07 Correct oversight - 0xfe was not changed to 0xff in lambda args. 2012-07-14 13:43:30 -05:00
Jesse D. McDonald bc3df6dd17 Swap continuation & context in the lambda and template structures. 
This is to separate the three 'call' parameters (target, argv, ctx) from
the 'return to' parameter (k). The old order made it look as if the dynamic
context was in some way related to the continuation, which is not the case.
 2012-07-14 13:43:26 -05:00
Jesse D. McDonald 9af29f28da Commit basic (and ...) & (or ...) *functions*, with lambda args. 2012-07-14 13:43:25 -05:00
Jesse D. McDonald 893b7e122e Commit (append ...) function, implemented as nested (foldr ...) calls. 2012-07-14 13:43:24 -05:00
Jesse D. McDonald a6715b0922 More primitive functions: map, reverse, acons. 2012-07-14 13:43:23 -05:00
Jesse D. McDonald 2d7b079dd8 Make (foldl ...) state the second argument, as with (foldr ...). 2012-07-14 13:43:22 -05:00
Jesse D. McDonald c6500a53b3 Commit implementation of (foldl ...) function. 2012-07-14 13:43:21 -05:00
Jesse D. McDonald 3a418484c8 Commit (foldr ...) function, and refactor (list ...) to use it. 2012-07-14 13:43:20 -05:00
Jesse D. McDonald a1db12d1e2 Commit implementation of (list ...) primitive function. 2012-07-14 13:43:18 -05:00
Jesse D. McDonald ffb8e8f86d Separate statistics for Gen-0 vs. Gen-1 garbage collection. 2012-07-14 13:43:17 -05:00
Jesse D. McDonald 0a6d2f3f73 Control printing of GC stats with GC_STATS env. var rather than #if 0/1. 2012-07-14 13:43:16 -05:00
Jesse D. McDonald 7a651dc9d1 Update main app to use new gc_init() prototype w/ separate Gen-0 size. 2012-07-14 13:43:15 -05:00
Jesse D. McDonald 632ac19adf Make Gen-0 size semi-independent of Gen-1 minimum size. 2012-07-14 13:43:14 -05:00
Jesse D. McDonald 7f55142d72 Fix several significant bugs in the generational collector. 
No known issues remaining at this time.
 2012-07-14 13:43:10 -05:00
Jesse D. McDonald 311a4c2d55 Don't include gc_poison_region in non-debug builds. 2012-07-14 13:43:09 -05:00
Jesse D. McDonald 12b5976b66 Fix a bug which was cryptically preventing Gen-1 size from increasing. 2012-07-14 13:43:07 -05:00
Jesse D. McDonald 7fb083a5f9 Generational GC. Initial version, may be buggy. 2012-07-14 13:43:05 -05:00
Jesse D. McDonald 075cbac672 Remove some unnecessary write barriers for better performance. 2012-07-14 13:43:04 -05:00
Jesse D. McDonald 32952e9aa4 Add (empty) write barriers in preparation for more advanced GC. 2012-07-14 13:43:03 -05:00
Jesse D. McDonald da93d60cfd Adjust build script to capitalize HAVE_MOD_* macros. 2012-07-14 13:43:01 -05:00
Jesse D. McDonald e8d1a2fa40 Minor performance-related changes. 2012-07-14 13:43:00 -05:00
Jesse D. McDonald 8ca34f40ec Add a bytecode which returns the type of a given structure. 2012-07-14 13:42:59 -05:00
Jesse D. McDonald 62e2095f31 Add standard build targets (distclean, realclean, install, uninstall). 2012-07-14 13:42:54 -05:00
Jesse D. McDonald 06679a2790 Ignore dependency (*.d) files. 2012-07-14 13:42:51 -05:00
Jesse D. McDonald ca8d68c023 Add automatic dependency tracking to the build rules. 
Move optional extension modules (e.g. mod_io.c) into mods/ subdir.
Fix missing #include in reader.c.
 2012-07-14 13:42:30 -05:00
Jesse D. McDonald baa2dae345 Rearrange example programs based on new modularity feature. 2012-07-14 13:42:18 -05:00
Jesse D. McDonald ec306ef31f Adjust indirect form (#i"path") to be relative to the current file. 2012-07-14 13:42:16 -05:00
Jesse D. McDonald 6254044280 Add #i"pathname" syntax for reading values from modular input files. 2012-07-14 13:42:14 -05:00
Jesse D. McDonald ea9b1734fd Improve trace output, for debugging. 2012-07-14 13:42:12 -05:00
Jesse D. McDonald 601aa9db67 Re-write factorial.rla to be closer to what a compiler should generate. 2012-07-14 13:42:10 -05:00
Jesse D. McDonald 5e36910eab Rewrite cat.rla to be closer to what a compiler should generate. 2012-07-14 13:42:08 -05:00
Jesse D. McDonald 8f263daffc Add a reserved input code for 'self', the current lambda. 
Correct an error in the documentation for the condition bytecode(s).
Adjust the printer to limit the depth of non-cyclic object output.
 2012-07-14 13:42:04 -05:00
Jesse D. McDonald e18863c3ad Simplify number reader; eliminates potentially invalid double-ungetc(). 2012-07-14 13:42:00 -05:00
Jesse D. McDonald 307ed97b45 Rename "core-image.rla" now that there are two such images. 2012-07-14 13:41:56 -05:00
Jesse D. McDonald 912a620c5a Add some error-handling to cat.rla. Add support for #! lines. 
Also fix an off-by-one error in the column counter and suppress GC stats.
 2012-07-14 13:41:52 -05:00
Jesse D. McDonald ce3c4f1ce9 Increase block size in cat.rla. Print GC stats to stderr. 2012-07-14 13:41:49 -05:00
Jesse D. McDonald 0e62641919 Check in a second program, this time demonstrating basic I/O. 
Also filter cycles and long byte-strings from print_value() output.
Added three new bytecodes to get the sizes of vectors, strings, and structs.
 2012-07-14 13:41:37 -05:00
Jesse D. McDonald c1a0850bcf Add builtin wrappers for the basic POSIX file APIs. 2012-07-14 13:41:00 -05:00
Jesse D. McDonald b74f0cddda Adjust number-reader to allow 'negative zero' FP values. 
Also add builtins for NaN and +/- infinity, and bytecodes for classification.
 2012-07-14 13:40:52 -05:00
Jesse D. McDonald aa461c8574 Add basic support for reading floating-point values. 
No guarantees are made as to the precision.
 2012-07-14 13:40:50 -05:00
Jesse D. McDonald bc10f59c6e Allocate space for max. number of frame variables up front. 
Allows us to avoid reallocating a new vector after every tail-call.
 2012-07-14 13:40:47 -05:00
Jesse D. McDonald 6a12d967ef If hard limit is exceeded, try to allocate more memory from the OS. 
Reduce initial allocation to 1 MB now that it can by increased at runtime.
Also remove 'noreturn' attribute from the public API.
If out_of_memory() returns, GC will abort() internally.
 2012-07-14 13:40:40 -05:00
Jesse D. McDonald 88ebc7ca77 Print results individually, on separate lines, rather than as a list. 2012-07-14 13:40:34 -05:00