mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-06-14 15:40:19 +02:00
Code Activity

compile call-with-values, woot!

Browse source 
* libguile/vm-engine.c (vm_run): Add another byte onto the bootstrap
  program, as the offset passed to mv-call now takes two bytes.

* module/system/vm/frame.scm (bootstrap-frame?): Update for the new
  bootstrap length. Really we should just check for 'halt though.

* libguile/vm-i-system.c (FETCH_OFFSET): New helper, used in BR().
  (goto/nargs, call/nargs): Versions of goto/args and call, respectively,
  that take the number of arguments from a value on the top of the stack.
  (mv-call): Call FETCH_OFFSET to get the offset.

* module/language/scheme/translate.scm (custom-transformer-table):
  Compile call-with-values to <ghil-mv-call>. There is some trickery
  because of the r4rs.scm call-with-values trampolines.

* module/system/il/ghil.scm: Add <ghil-mv-call> and accessors.

* module/system/il/compile.scm (codegen): Compile <ghil-mv-call>.

* module/system/il/glil.scm: Add <glil-mv-call>, which needs some special
  assembly because of the label. Fix some typos.

* module/system/vm/assemble.scm (byte-length): New helper, factored out
  and made more general.
  (codegen): Assemble mv-call, including the label.
  (check-length): New helper, makes sure that the addressing is
  consistent within the produced object code.
  (stack->bytes): Rewrite to be more generic -- now `br' instructions
  aren't the only ones jumping around in the instruction stream.

* module/system/vm/conv.scm (make-byte-decoder): Return two values in the
  #f case.

* module/system/vm/disasm.scm (disassemble-bytecode): Rewrite, because
  the previous implementation depended on a guile interpreter quirk:
  namely, that multiple values could be represented within one value, and
  destructured later.
This commit is contained in:
Andy Wingo 2008-09-16 00:26:22 +02:00
parent ef24c01bff
commit efbd589204
10 changed files with 134 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

4
libguile/vm-engine.c
View file

@ -101,9 +101,9 @@ vm_run (SCM vm, SCM program, SCM args)
SCM prog = program;
/* Boot program */
scm_byte_t bytes[5] = {scm_op_mv_call, 0, 1, scm_op_make_int8_1, scm_op_halt};
scm_byte_t bytes[6] = {scm_op_mv_call, 0, 0, 1, scm_op_make_int8_1, scm_op_halt};
bytes[1] = scm_ilength (args); /* FIXME: argument overflow */
program = scm_c_make_program (bytes, 5, SCM_BOOL_F);
program = scm_c_make_program (bytes, 6, SCM_BOOL_F);
/* Initial frame */
CACHE_REGISTER ();