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-rw-r--r--libguile/vm-engine.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/libguile/vm-engine.c b/libguile/vm-engine.c
index 885ef72ef..44bd2569b 100644
--- a/libguile/vm-engine.c
+++ b/libguile/vm-engine.c
@@ -254,6 +254,9 @@
#define SP_REF_F64(i) (sp[i].as_f64)
#define SP_SET_F64(i,o) (sp[i].as_f64 = o)
+#define SP_REF_U64(i) (sp[i].as_u64)
+#define SP_SET_U64(i,o) (sp[i].as_u64 = 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))
@@ -3312,8 +3315,32 @@ VM_NAME (scm_i_thread *thread, struct scm_vm *vp,
NEXT (0);
}
- VM_DEFINE_OP (143, unused_143, NULL, NOP)
- VM_DEFINE_OP (144, unused_144, NULL, NOP)
+ /* scm->u64 dst:12 src:12
+ *
+ * Unpack an unsigned 64-bit integer from SRC and place it in DST.
+ */
+ VM_DEFINE_OP (143, scm_to_u64, "scm->u64", OP1 (X8_S12_S12) | OP_DST)
+ {
+ scm_t_uint16 dst, src;
+ UNPACK_12_12 (op, dst, src);
+ SYNC_IP ();
+ SP_SET_U64 (dst, scm_to_uint64 (SP_REF (src)));
+ NEXT (1);
+ }
+
+ /* u64->scm dst:12 src:12
+ *
+ * Pack an unsigned 64-bit integer into a SCM value.
+ */
+ VM_DEFINE_OP (144, u64_to_scm, "u64->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_uint64 (SP_REF_U64 (src)));
+ NEXT (1);
+ }
+
VM_DEFINE_OP (145, unused_145, NULL, NOP)
VM_DEFINE_OP (146, unused_146, NULL, NOP)
VM_DEFINE_OP (147, unused_147, NULL, NOP)