- g (VarExpr _ (VarDef k fs)) = load k >>= \instr-> tell [instr] //note: pure is pure for list, i.e. []
- g (IntExpr _ i) = loadP (LDC i) >>= \instr-> tell [instr]
- g (CharExpr _ c) = abort "How to deal with chars?"
- g (BoolExpr _ True) = loadP (LDC TRUE) >>= \instr-> tell [instr]
- g (BoolExpr _ False) = loadP (LDC FALSE) >>= \instr-> tell [instr]
- g (Op2Expr _ e1 op e2) = g e1 >>| g e2 >>| tell [Instr (op2ins op) [] ""]
- g (Op1Expr _ UnNegation e) = g e >>| tell [Instr "not" [] ""]
- g (Op1Expr _ UnMinus e) = g e >>| tell [Instr "neg" [] ""]
- g (EmptyListExpr _) = abort "Shit, empty list expr"
- g (TupleExpr p (e1,e2)) = abort "How to deal with tuples?"
- g (FunExpr _ k es fs) =
- mapM g es >>| //put all arguments on the stack (todo: fix argument handling!)
- jump "bsr" k >>= \instr->
- tell [instr] >>| //actually branch to function
- tell [Instr "ldr" [Raw "RR"] ""] //push return value on stack, todo: check for VOID
-
-instance g Stmt where
- g (IfStmt cond th el) =
- fresh >>= \elseLabel->
- fresh >>= \endLabel->
- g cond >>|
- tell [Instr "brf" [L elseLabel] "branch else"] >>|
- mapM_ g th >>|
- tell [Instr "bra" [L endLabel] "branch end if"] >>|
- tell [Lab elseLabel] >>|
- mapM_ g el >>|
- tell [Lab endLabel]
- g (WhileStmt cond th) =
- fresh >>= \startLabel->
- fresh >>= \endLabel ->
- tell [Lab startLabel] >>|
- g cond >>|
- tell [Instr "brf" [L endLabel] "branch end while"] >>|
- mapM_ g th >>|
- tell [Instr "bra" [L startLabel] "branch start while"] >>|
- tell [Lab endLabel]
- g (AssStmt (VarDef k fs) e) =
- g e >>|
- abort "Shit, an assignment, figure out something with storing vars or something"
- //vars will be on stack in locals (possible pointers to heap)
- g (FunStmt _ _) = abort "CodeGen, FunStmt unused" //not used
- g (ReturnStmt Nothing) = tell [Instr "ret" [] ""] //NOTE! Assumes only return address on stack, safe?
- g (ReturnStmt (Just e)) =
- g e >>|
- tell [Instr "str" [Raw "RR"] ""] >>|
- g (ReturnStmt Nothing)
+// g (VarExpr _ (VarDef k fs)) = load k >>= \instr-> tell [instr] //note: pure is pure for list, i.e. []
+ g (IntExpr _ i) = tell [Instr "ldc" [Lit i] ""]
+ g (CharExpr _ c) = tell [Instr "ldc" [Lit (toInt c)] ""]
+ g (BoolExpr _ b) = tell [Instr "ldc" [Lit (if b TRUE FALSE)] ""]
+ g (EmptyListExpr _) = tell [Instr "ldc" [Lit 0] ""]
+ >>| tell [Instr "sth" [] ""]
+ g (Op1Expr _ o e) = g e >>| g o
+ g (Op2Expr _ e1 BiCons e2) = g e2 >>| g e1
+ >>| tell [Instr "sth" [] ""]
+ >>| tell [Instr "ajs" [Lit -1] ""]
+ >>| tell [Instr "sth" [] ""]
+ g (Op2Expr _ e1 op e2) = g e1 >>| g e2 >>| g op
+ g (TupleExpr _ (e1,e2)) = g e1
+ >>| tell [Instr "sth" [] ""]
+ >>| g e2
+ >>| tell [Instr "sth" [] ""]
+ >>| tell [Instr "ajs" [Lit -1] ""]
+ g _ = abort "hoi"
+ g (FunExpr _ k es fs) = abort "FunExpr unsupported modderfokker"
+ // mapM g es >>| //put all arguments on the stack (todo: fix argument handling!)
+ // jump "bsr" k >>= \instr->
+ // tell [instr] >>| //actually branch to function
+ // tell [Instr "ldr" [Raw "RR"] ""] //push return value on stack, todo: check for VOID
+//
+//instance g Stmt where
+// g (IfStmt cond th el) =
+// fresh >>= \elseLabel->
+// fresh >>= \endLabel->
+// g cond >>|
+// tell [Instr "brf" [L elseLabel] "branch else"] >>|
+// mapM_ g th >>|
+// tell [Instr "bra" [L endLabel] "branch end if"] >>|
+// tell [Lab elseLabel] >>|
+// mapM_ g el >>|
+// tell [Lab endLabel]
+// g (WhileStmt cond th) =
+// fresh >>= \startLabel->
+// fresh >>= \endLabel ->
+// tell [Lab startLabel] >>|
+// g cond >>|
+// tell [Instr "brf" [L endLabel] "branch end while"] >>|
+// mapM_ g th >>|
+// tell [Instr "bra" [L startLabel] "branch start while"] >>|
+// tell [Lab endLabel]
+// g (AssStmt (VarDef k fs) e) =
+// g e >>|
+// abort "Shit, an assignment, figure out something with storing vars or something"
+// //vars will be on stack in locals (possible pointers to heap)
+// g (FunStmt _ _) = abort "CodeGen, FunStmt unused" //not used
+// g (ReturnStmt Nothing) = tell [Instr "ret" [] ""] //NOTE! Assumes only return address on stack, safe?
+// g (ReturnStmt (Just e)) =
+// g e >>|
+// tell [Instr "str" [Raw "RR"] ""] >>|
+// g (ReturnStmt Nothing)