1 files changed, 107 insertions, 0 deletions
diff --git a/source/xi_lib/ir_arch.ml b/source/xi_lib/ir_arch.ml
new file mode 100644
index 0000000..e7ffc60
--- /dev/null
+++ b/source/xi_lib/ir_arch.ml
@@ -0,0 +1,107 @@
+open Ir
+
+let reg_fp = REG_Spec 30
+
+let reg_sp = REG_Spec 29
+
+let reg_ra = REG_Spec 31
+
+let reg_zero = REG_Spec 0
+
+let expr_reg_zero = E_Reg reg_zero
+
+let reg_v0 = REG_Hard 2
+
+let reg_v1 = REG_Hard 3
+
+module type REGISTERS_DESCRIPTION = sig
+
+  val callee_saves_registers : reg list
+
+  val caller_saves_registers : reg list
+
+  val available_registers : reg list
+
+  val arguments_registers : reg list
+
+end
+
+
+module NormalRegistersDescription : REGISTERS_DESCRIPTION = struct
+
+  let callee_saves_registers = 
+    [ REG_Hard 16
+    ; REG_Hard 17
+    ; REG_Hard 18
+    ; REG_Hard 19
+    ; REG_Hard 20
+    ; REG_Hard 21
+    ; REG_Hard 22
+    ; REG_Hard 23
+    ]
+
+  let caller_saves_registers =
+    [ REG_Hard 1
+    ; REG_Hard 2
+    ; REG_Hard 3
+    ; REG_Hard 4
+    ; REG_Hard 5
+    ; REG_Hard 6
+    ; REG_Hard 7
+    ; REG_Hard 8
+    ; REG_Hard 9
+    ; REG_Hard 10
+    ; REG_Hard 11
+    ; REG_Hard 12
+    ; REG_Hard 13
+    ; REG_Hard 14
+    ; REG_Hard 15
+    ; REG_Hard 24
+    ; REG_Hard 25
+    ]
+
+  let available_registers = List.flatten
+    [ caller_saves_registers
+    ; callee_saves_registers
+    ]
+
+  let arguments_registers =
+    [ REG_Hard 4
+    ; REG_Hard 5
+    ; REG_Hard 6
+    ; REG_Hard 7
+    ]
+
+end
+
+module SimpleCallerRegistersDescription : REGISTERS_DESCRIPTION = struct
+
+  let callee_saves_registers = 
+    [ 
+    ]
+
+  let caller_saves_registers =
+    [ REG_Hard 2
+    ; REG_Hard 3
+    ; REG_Hard 4
+    ; REG_Hard 5
+    ; REG_Hard 6
+    ; REG_Hard 7
+    ]
+
+  let available_registers = List.flatten
+    [ callee_saves_registers
+    ; caller_saves_registers
+    ]
+
+  let arguments_registers =
+    [ REG_Hard 4
+    ; REG_Hard 5
+    ]
+
+end
+
+let descriptions =
+  [ "normal", (module NormalRegistersDescription : REGISTERS_DESCRIPTION )
+  ; "simple_caller", (module SimpleCallerRegistersDescription : REGISTERS_DESCRIPTION )
+  ]
\ No newline at end of file