26 lines
847 B
OCaml
26 lines
847 B
OCaml
open Ast
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open Mips
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module Env = Map.Make (String)
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let _types_ =
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Env.of_seq
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(List.to_seq
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[ "%add", Func_t (Int_t, [ Int_t; Int_t ])
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; "%sub", Func_t (Int_t, [ Int_t; Int_t ])
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; "%mul", Func_t (Int_t, [ Int_t; Int_t ])
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; "%div", Func_t (Int_t, [ Int_t; Int_t ])
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; "puti", Func_t (Int_t, [ Int_t ])
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])
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;;
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let builtins =
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List.fold_left
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(fun env (fn, impl) -> Env.add fn impl env)
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Env.empty
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[ "%add", [ Lw (T0, Mem (SP, 4)); Lw (T1, Mem (SP, 0)); Add (V0, T0, T1) ]
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; "%sub", [ Lw (T0, Mem (SP, 4)); Lw (T1, Mem (SP, 0)); Sub (V0, T0, T1) ]
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; "%mul", [ Lw (T0, Mem (SP, 4)); Lw (T1, Mem (SP, 0)); Mul (V0, T0, T1) ]
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; "%div", [ Lw (T0, Mem (SP, 4)); Lw (T1, Mem (SP, 0)); Div (V0, T0, T1) ]
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; "puti", [ Lw (A0, Mem (SP, 0)); Li (V0, Syscall.print_int); Syscall ]
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]
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;;
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