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13 Commits

Author SHA1 Message Date
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 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 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 449b0cf478 Implement fixed-function reader for getting data into the interpreter. 2012-07-14 13:38:44 -05:00
Jesse D. McDonald d80e0c1fd3 CLOCK_MONOTONIC and uint64_t aren't entirely portable. 2012-07-14 13:38:32 -05:00
Jesse D. McDonald 26819cafdc Update list of weak boxes *after* processing finalizers. 
It's a bit unlikely, but a finalizer could be arranged for a weak box.
Also add more assertions, clear old range in debug builds, and misc. cleanup.
 2012-07-14 13:38:23 -05:00
Jesse D. McDonald 0a2f13b523 Added built-in structure types and interpreter core (w/o bytecode). 
Improved timing resolution by using clock_gettime() instead of clock().
Also gave project a name: Rosella. Play on 'Parrot' (Perl 6 VM).
 2012-07-14 13:38:02 -05:00
Jesse D. McDonald 7bd6e616ff Add support for weak boxes and wills/finalizers. 
Also refactored some GC code into smaller functions.

Weak boxes and wills will be useful for implementing weak hash tables,
which in turn will be used to store dynamic parameters efficiently.
 2012-07-14 13:37:41 -05:00
Jesse D. McDonald 0867f66767 Add structure type; allow GC to be disabled; unify object-moving code. 2012-07-14 13:37:37 -05:00
Jesse D. McDonald f8e04f1b86 Add full support for remaining data type (box, vector, byte string). 
Improve inline accessors for cases where value type is known.
Move GC stats into a single global structure to reduce proliferation of globals.
 2012-07-14 13:37:31 -05:00
Jesse D. McDonald 8db40406a0 Refactor into a GC library (gc.c and gc.h) and a test program (gc_test.c). 
Also, allocate GC memory ranges dynamically during startup (gc_init()) rather than statically.
 2012-07-14 13:37:19 -05:00
Jesse D. McDonald 61b83a1293 Add support for (strong) boxes, value vectors, and byte strings. 2012-07-14 13:37:15 -05:00
Jesse D. McDonald 9fa0a09509 Initial check-in. 2012-07-14 13:36:26 -05:00