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9cc649b880
Fixes the mutually-recursive toplevel definitions case. This could be fixed by rewriting bodies as letrecs, as r6 does, but that's not really repl-compatible. * module/system/il/ghil.scm (ghil-lookup): Ok, if we can't locate a variable, mark it as unresolved. * module/system/il/compile.scm (make-glil-var): Compile unresolved variables as <glil-late-bound> objects. * module/system/il/glil.scm: Add <glil-late-bound> definition. * module/system/vm/assemble.scm (codegen): And, finally, when we see a <vlate-bound> object, allocate a slot for it in the object vector, setting it to a symbol. Add a new pair of instructions to resolve that symbol to a variable at the last minute. * src/vm_loader.c (load-number): Bugfix: the radix argument should be SCM_UNDEFINED in order to default to 10. (late-bind): Add an unresolved symbol to the object vector. Could be replaced with load-symbol I guess. * src/vm_system.c (late-variable-ref, late-variable-set): New instructions to do late symbol binding. * testsuite/Makefile.am (vm_test_files): * testsuite/t-mutual-toplevel-defines.scm: New test, failing for some reason involving the core even? and odd? definitions. |
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| doc | ||
| module | ||
| src | ||
| testsuite | ||
| .cvsignore | ||
| acconfig.h | ||
| acinclude.m4 | ||
| AUTHORS | ||
| autogen.sh | ||
| ChangeLog | ||
| configure.in | ||
| env | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| THANKS | ||
This is an attempt to revive the Guile-VM project by Keisuke Nishida
written back in the years 2000 and 2001. Below are a few pointers to
relevant threads on Guile's development mailing list.
Enjoy!
Ludovic Courtès <ludovic.courtes@laas.fr>, Apr. 2005.
Pointers
--------
Status of the last release, 0.5
http://lists.gnu.org/archive/html/guile-devel/2001-04/msg00266.html
The very first release, 0.0
http://sources.redhat.com/ml/guile/2000-07/msg00418.html
Simple benchmark
http://sources.redhat.com/ml/guile/2000-07/msg00425.html
Performance, portability, GNU Lightning
http://lists.gnu.org/archive/html/guile-devel/2001-03/msg00132.html
Playing with GNU Lightning
http://lists.gnu.org/archive/html/guile-devel/2001-03/msg00185.html
On things left to be done
http://lists.gnu.org/archive/html/guile-devel/2001-03/msg00146.html
---8<--- Original README below. -----------------------------------------
Installation
------------
1. Install the latest Guile from CVS.
2. Install Guile VM:
% configure
% make install
% ln -s module/{guile,system,language} /usr/local/share/guile/
3. Add the following lines to your ~/.guile:
(use-modules (system vm core)
(cond ((string=? (car (command-line)) "guile-vm")
(use-modules (system repl repl))
(start-repl 'scheme)
(quit)))
Example Session
---------------
% guile-vm
Guile Scheme interpreter 0.5 on Guile 1.4.1
Copyright (C) 2001 Free Software Foundation, Inc.
Enter `,help' for help.
scheme@guile-user> (+ 1 2)
3
scheme@guile-user> ,c -c (+ 1 2) ;; Compile into GLIL
(@asm (0 1 0 0)
(module-ref #f +)
(const 1)
(const 2)
(tail-call 2))
scheme@guile-user> ,c (+ 1 2) ;; Compile into object code
Disassembly of #<objcode 403c5fb0>:
nlocs = 0 nexts = 0
0 link "+" ;; (+ . ???)
3 variable-ref
4 make-int8:1 ;; 1
5 make-int8 2 ;; 2
7 tail-call 2
scheme@guile-user> (define (add x y) (+ x y))
scheme@guile-user> (add 1 2)
3
scheme@guile-user> ,x add ;; Disassemble
Disassembly of #<program add>:
nargs = 2 nrest = 0 nlocs = 0 nexts = 0
Bytecode:
0 object-ref 0 ;; (+ . #<primitive-procedure +>)
2 variable-ref
3 local-ref 0
5 local-ref 1
7 tail-call 2
Objects:
0 (+ . #<primitive-procedure +>)
scheme@guile-user>
Compile Modules
---------------
Use `guilec' to compile your modules:
% cat fib.scm
(define-module (fib) :export (fib))
(define (fib n) (if (< n 2) 1 (+ (fib (- n 1)) (fib (- n 2)))))
% guilec fib.scm
Wrote fib.go
% guile
guile> (use-modules (fib))
guile> (fib 8)
34