MisterChaos69/MiniJavaCompiler
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bytecode #3

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mrab merged 21 commits from bytecode into master 2024-06-14 07:56:36 +00:00
Conversation 0 Commits 21 Files Changed 23 +8 -4
2 changed files with 8 additions and 4 deletions
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3
src/ByteCode/ClassFile.hs
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@ -43,6 +43,7 @@ data Operation = Opiadd
| Opreturn
| Opireturn
| Opareturn
| Opdup_x1
| Opinvokespecial Word16
| Opgoto Word16
| Opsipush Word16
@ -111,6 +112,7 @@ opcodeEncodingLength Opaconst_null = 1
opcodeEncodingLength Opreturn = 1
opcodeEncodingLength Opireturn = 1
opcodeEncodingLength Opareturn = 1
opcodeEncodingLength Opdup_x1 = 1
opcodeEncodingLength (Opinvokespecial _) = 3
opcodeEncodingLength (Opgoto _) = 3
opcodeEncodingLength (Opsipush _) = 3
@ -162,6 +164,7 @@ instance Serializable Operation where
serialize Opreturn = [0xB1]
serialize Opireturn = [0xAC]
serialize Opareturn = [0xB0]
serialize Opdup_x1 = [0x5A]
serialize (Opinvokespecial index) = 0xB7 : unpackWord16 index
serialize (Opgoto index) = 0xA7 : unpackWord16 index
serialize (Opsipush index) = 0x11 : unpackWord16 index

9
src/ByteCode/Generation/Assembler/ExpressionAndStatement.hs
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@ -7,6 +7,7 @@ import Data.List
import Data.Char
import ByteCode.Generation.Builder.Field
assembleExpression :: Assembler Expression
assembleExpression (constants, ops, lvars) (TypedExpression _ (BinaryOperation op a b))
| elem op [Addition, Subtraction, Multiplication, Division, BitwiseAnd, BitwiseOr, BitwiseXor] = let
@ -97,7 +98,7 @@ assembleStatementExpression
localIndex = findIndex ((==) name) lvars
expr = (TypedExpression dtype (LocalVariable name))
(exprConstants, exprOps, _) = assembleExpression (constants, ops, lvars) expr
incrOps = exprOps ++ [Opsipush 1, Opiadd, Opdup]
incrOps = exprOps ++ [Opsipush 1, Opiadd, Opdup_x1]
in case localIndex of
Just index -> (exprConstants, incrOps ++ [Opistore (fromIntegral index)], lvars)
Nothing -> error("No such local variable found in local variable pool: " ++ name)
@ -119,7 +120,7 @@ assembleStatementExpression
localIndex = findIndex ((==) name) lvars
expr = (TypedExpression dtype (LocalVariable name))
(exprConstants, exprOps, _) = assembleExpression (constants, ops, lvars) expr
incrOps = exprOps ++ [Opsipush 1, Opiadd, Opisub]
incrOps = exprOps ++ [Opsipush 1, Opisub, Opdup_x1]
in case localIndex of
Just index -> (exprConstants, incrOps ++ [Opistore (fromIntegral index)], lvars)
Nothing -> error("No such local variable found in local variable pool: " ++ name)
@ -141,7 +142,7 @@ assembleStatementExpression
fieldIndex = findFieldIndex constants name
expr = (TypedExpression dtype (FieldVariable name))
(exprConstants, exprOps, _) = assembleExpression (constants, ops ++ [Opaload 0], lvars) expr
incrOps = exprOps ++ [Opsipush 1, Opiadd, Opdup]
incrOps = exprOps ++ [Opsipush 1, Opiadd, Opdup_x1]
in case fieldIndex of
Just index -> (exprConstants, incrOps ++ [Opputfield (fromIntegral index)], lvars)
Nothing -> error("No such field variable found in field variable pool: " ++ name)
@ -163,7 +164,7 @@ assembleStatementExpression
fieldIndex = findFieldIndex constants name
expr = (TypedExpression dtype (FieldVariable name))
(exprConstants, exprOps, _) = assembleExpression (constants, ops ++ [Opaload 0], lvars) expr
incrOps = exprOps ++ [Opsipush 1, Opiadd, Opisub]
incrOps = exprOps ++ [Opsipush 1, Opisub, Opdup_x1]
in case fieldIndex of
Just index -> (exprConstants, incrOps ++ [Opputfield (fromIntegral index)], lvars)
Nothing -> error("No such field variable found in field variable pool: " ++ name)