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-rw-r--r--libguile/vm-engine.c49
1 files changed, 46 insertions, 3 deletions
diff --git a/libguile/vm-engine.c b/libguile/vm-engine.c
index d15fe3228..b6d656b4e 100644
--- a/libguile/vm-engine.c
+++ b/libguile/vm-engine.c
@@ -257,6 +257,9 @@
#define SP_REF_U64(i) (sp[i].as_u64)
#define SP_SET_U64(i,o) (sp[i].as_u64 = o)
+#define SP_REF_S64(i) (sp[i].as_s64)
+#define SP_SET_S64(i,o) (sp[i].as_s64 = o)
+
#define VARIABLE_REF(v) SCM_VARIABLE_REF (v)
#define VARIABLE_SET(v,o) SCM_VARIABLE_SET (v, o)
#define VARIABLE_BOUNDP(v) (!scm_is_eq (VARIABLE_REF (v), SCM_UNDEFINED))
@@ -3530,9 +3533,49 @@ VM_NAME (scm_i_thread *thread, struct scm_vm *vp,
NEXT (3);
}
- VM_DEFINE_OP (157, unused_157, NULL, NOP)
- VM_DEFINE_OP (158, unused_158, NULL, NOP)
- VM_DEFINE_OP (159, unused_159, NULL, NOP)
+ /* scm->s64 dst:12 src:12
+ *
+ * Unpack a signed 64-bit integer from SRC and place it in DST.
+ */
+ VM_DEFINE_OP (157, scm_to_s64, "scm->s64", OP1 (X8_S12_S12) | OP_DST)
+ {
+ scm_t_uint16 dst, src;
+ UNPACK_12_12 (op, dst, src);
+ SYNC_IP ();
+ SP_SET_S64 (dst, scm_to_int64 (SP_REF (src)));
+ NEXT (1);
+ }
+
+ /* s64->scm dst:12 src:12
+ *
+ * Pack an signed 64-bit integer into a SCM value.
+ */
+ VM_DEFINE_OP (158, s64_to_scm, "s64->scm", OP1 (X8_S12_S12) | OP_DST)
+ {
+ scm_t_uint16 dst, src;
+ UNPACK_12_12 (op, dst, src);
+ SYNC_IP ();
+ SP_SET (dst, scm_from_int64 (SP_REF_S64 (src)));
+ NEXT (1);
+ }
+
+ /* load-s64 dst:24 high-bits:32 low-bits:32
+ *
+ * Make an unsigned 64-bit integer with HIGH-BITS and LOW-BITS.
+ */
+ VM_DEFINE_OP (159, load_s64, "load-s64", OP3 (X8_S24, AS32, BS32) | OP_DST)
+ {
+ scm_t_uint32 dst;
+ scm_t_uint64 val;
+
+ UNPACK_24 (op, dst);
+ val = ip[1];
+ val <<= 32;
+ val |= ip[2];
+ SP_SET_U64 (dst, val);
+ NEXT (3);
+ }
+
VM_DEFINE_OP (160, unused_160, NULL, NOP)
VM_DEFINE_OP (161, unused_161, NULL, NOP)
VM_DEFINE_OP (162, unused_162, NULL, NOP)