initial checkin of abstract machine interface

diff --git a/ir/be/bemachine.h b/ir/be/bemachine.h
new file mode 100644 (file)
index 0000000..2f6d1cf
--- /dev/null
+++ b/ir/be/bemachine.h
@@ -0,0 +1,66 @@
+#ifndef _BE_MACHINE_H_
+#define _BE_MACHINE_H_
+
+/**
+ * Abstract machine interface.
+ * @author Christian Wuerdig
+ * @date   23.10.2006
+ * @cvs-id $Id$
+ */
+
+typedef struct _be_execution_unit_type_t be_execution_unit_type_t;
+typedef struct _be_execution_unit_t      be_execution_unit_t;
+typedef struct _be_machine_t             be_machine_t;
+
+struct _be_execution_unit_t {
+       be_execution_unit_type_t *tp;
+       const char               *name;
+};
+
+struct _be_execution_unit_type_t {
+       unsigned            n_units;
+       const char          *name;
+       be_execution_unit_t *units;
+};
+
+struct _be_machine_t {
+       unsigned                 n_unit_types;
+       be_execution_unit_type_t *unit_types;
+};
+
+/**
+ * Get the number of available unit types in the given machine.
+ */
+#define be_machine_get_n_unit_types(machine) ((machine)->n_unit_types)
+
+/**
+ * Get the unit type number @p i from the given machine.
+ */
+#define be_machine_get_unit_type(machine, i) ((machine)->unit_types[(i)])
+
+/**
+ * Get the name of the given unit type.
+ */
+#define be_machine_get_unit_type_name(tp) ((tp)->name)
+
+/**
+ * Get the number of available execution units from the given unit type.
+ */
+#define be_machine_get_n_execunits(tp) ((tp)->n_units)
+
+/**
+ * Get the execution unit number @p i from the given unit type.
+ */
+#define be_machine_get_execunit(tp, i) ((tp)->units[(i)])
+
+/**
+ * Get the name of the given execution unit.
+ */
+#define be_machine_get_execunit_name(unit) ((unit)->name)
+
+/**
+ * Get the unit type of the given execution unit.
+ */
+#define be_machine_get_execunit_type(unit) ((unit)->tp)
+
+#endif /* _BE_MACHINE_H_ */