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author | Andy Wingo <wingo@pobox.com> | 2013-08-11 16:42:06 +0200 |
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committer | Andy Wingo <wingo@pobox.com> | 2013-08-11 16:45:31 +0200 |
commit | af95414f1dcbacf7fd5311a3ee89a799b20fd17b (patch) | |
tree | 5810d5e2948259839704216a2d8b05eb0a251e26 /module/system/vm/disassembler.scm | |
parent | 99983d544a931c29065ecb749acd349efc5f36c5 (diff) | |
download | guile-af95414f1dcbacf7fd5311a3ee89a799b20fd17b.tar.gz |
Various RTL VM and calling convention tweaks
* libguile/instructions.c (FOR_EACH_INSTRUCTION_WORD_TYPE): Allow for
five-word instructions, and for new instruction word types.
* libguile/vm-engine.c (RETURN_ONE_VALUE): Instead of returning the
value in the fixed part of the call frame, return it in the same place
multiple-value returns go: from slot 1.
(BR_ARITHMETIC): Allow arithmetic tests to be negated.
(rtl_vm_engine): Change calling convention to use the same location
for single and multiple-value returns. Renumber all instructions.
(halt, halt/values): Fold into a single instruction (halt).
(call): Take the location of the procedure instead of the location of
the call frame. Also take the number of args, and reset the sp before
jumping to the procedure, so as to indicate the number of arguments.
(call/values): Remove, as the new calling convention has RA == MVRA.
(tail-call): Require the procedure to be shuffled down already, and
take "nlocals" as an arg instead of "nargs".
(receive, receive-values): New instructions, for receiving returned
values from calls.
(return-values): Rename from return/values. Remove "values".
(alloc-frame): Rename from reserve-locals.
(reset-frame): New instruction.
(drop-locals): Remove.
(br-if-=, br-if-<, br-if-<=): Allow these instructions to be
negatable.
(br-if->, br-if->=): Remove. Probably a bad idea, given NaN.
(box-ref): Don't bother trying to do a reverse lookup -- the
toplevel-box, module-box, and resolve instructions should handle
that.
(resolve): Add arg to check that the variable is bound.
(toplevel-box, module-box): New instructions, replacing toplevel-ref,
toplevel-set, module-ref, and module-set.
* libguile/vm.c (rtl_boot_continuation_code, rtl_values_code): Adapt to
instruction set changes.
* module/Makefile.am: Make the assembler and disassembler dependent on
vm-operations.h.
* module/system/vm/assembler.scm:
* module/system/vm/disassembler.scm: Adapt to instruction changes and
new instruction word kinds.
* test-suite/tests/rtl.test: Adapt to instruction set changes.
Diffstat (limited to 'module/system/vm/disassembler.scm')
-rw-r--r-- | module/system/vm/disassembler.scm | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/module/system/vm/disassembler.scm b/module/system/vm/disassembler.scm index 3b95f196b..b339b5cbe 100644 --- a/module/system/vm/disassembler.scm +++ b/module/system/vm/disassembler.scm @@ -145,6 +145,11 @@ #'((not (zero? (logand word #x1))) (logand (ash word -1) #x7f) (unpack-s24 (ash word -8)))) + ((B1_X31) + #'((not (zero? (logand word #x1))))) + ((B1_X7_U24) + #'((not (zero? (logand word #x1))) + (ash word -8))) (else (error "bad kind" type))))) @@ -244,12 +249,14 @@ address of that offset." addr))) (('resolve-module dst name public) (list "~a" (if (zero? public) "private" "public"))) - (((or 'toplevel-ref 'toplevel-set!) _ var-offset mod-offset sym-offset) - (list "`~A'" (dereference-scm sym-offset))) - (((or 'module-ref 'module-set!) _ var-offset mod-name-offset sym-offset) + (('toplevel-box _ var-offset mod-offset sym-offset bound?) + (list "`~A'~A" (dereference-scm sym-offset) + (if bound? "" " (maybe unbound)"))) + (('module-box _ var-offset mod-name-offset sym-offset bound?) (let ((mod-name (reference-scm mod-name-offset))) - (list "`(~A ~A ~A)'" (if (car mod-name) '@ '@@) (cdr mod-name) - (dereference-scm sym-offset)))) + (list "`(~A ~A ~A)'~A" (if (car mod-name) '@ '@@) (cdr mod-name) + (dereference-scm sym-offset) + (if bound? "" " (maybe unbound)")))) (('load-typed-array dst type shape target len) (let ((addr (u32-offset->addr (+ offset target) context))) (list "~a bytes from #x~X" len addr))) |