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authorAndy Wingo <wingo@pobox.com>2009-07-24 11:00:32 +0200
committerAndy Wingo <wingo@pobox.com>2009-07-24 11:00:32 +0200
commit80545853d544f347ae991a476d78ccbf4d305ec7 (patch)
tree3dbf17cfe4f519ecb1fff9edc5e360ef48bba49f /libguile/vm-i-system.c
parentccf77d955c875ce95473098af96da9e1bec0b7eb (diff)
downloadguile-80545853d544f347ae991a476d78ccbf4d305ec7.tar.gz
compiler support for nlocs >= 256
* libguile/vm-i-system.c (long-local-ref, long-local-set) (make-variable): New intructions, for handling nlocs >= 256. * module/language/glil/compile-assembly.scm (glil->assembly): Compile <glil-lexical> with support for nlocs >= 256.
Diffstat (limited to 'libguile/vm-i-system.c')
-rw-r--r--libguile/vm-i-system.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/libguile/vm-i-system.c b/libguile/vm-i-system.c
index e12217ecc..c2c674d27 100644
--- a/libguile/vm-i-system.c
+++ b/libguile/vm-i-system.c
@@ -278,6 +278,16 @@ VM_DEFINE_INSTRUCTION (25, local_ref, "local-ref", 1, 0, 1)
NEXT;
}
+VM_DEFINE_INSTRUCTION (26, long_local_ref, "long-local-ref", 2, 0, 1)
+{
+ unsigned int i = FETCH ();
+ i <<= 8;
+ i += FETCH ();
+ PUSH (LOCAL_REF (i))
+ ASSERT_BOUND (*sp);
+ NEXT;
+}
+
VM_DEFINE_INSTRUCTION (27, variable_ref, "variable-ref", 0, 0, 1)
{
SCM x = *sp;
@@ -354,6 +364,16 @@ VM_DEFINE_INSTRUCTION (30, local_set, "local-set", 1, 1, 0)
NEXT;
}
+VM_DEFINE_INSTRUCTION (31, long_local_set, "long-local-set", 2, 1, 0)
+{
+ unsigned int i = FETCH ();
+ i <<= 8;
+ i += FETCH ();
+ LOCAL_SET (i, *sp);
+ DROP ();
+ NEXT;
+}
+
VM_DEFINE_INSTRUCTION (32, variable_set, "variable-set", 0, 1, 0)
{
VARIABLE_SET (sp[0], sp[-1]);
@@ -1183,6 +1203,14 @@ VM_DEFINE_INSTRUCTION (63, make_closure, "make-closure", 0, 2, 1)
NEXT;
}
+VM_DEFINE_INSTRUCTION (64, make_variable, "make-variable", 0, 0, 1)
+{
+ SYNC_BEFORE_GC ();
+ /* fixme underflow */
+ PUSH (scm_cell (scm_tc7_variable, SCM_UNPACK (SCM_UNDEFINED)));
+ NEXT;
+}
+
/*
(defun renumber-ops ()