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- Intermediate representation of program:
- Data...
- LABEL( sconst ) ;insert an ASM label
- INT( iconst ) ;insert int constant
- FLOAT( fconst ) ;insert float constant
- STRING( sconst ) ;insert string constant
- Code...
- Statements only:
- ENTER( iconst ) ;enter func with iconst locals
- LEAVE( iconst ) ;leave func with iconst locals
- JUMP( sconst ) ;jump to label sconst
- JUMPT( l,sconst ) ;eval expr-l, if !=0 jump to label sconst
- JUMPF( r,sconst ) ;eval expr-r, if ==0 jump to label sconst
- RETURN( l,sconst ) ;eval expr-l into return reg and jump to label sconst
- STORE( l,r ) ;eval expr-r and store it in expr-l
- Stmts or expressions:
- CALL( l,r ) ;eval expr-r, push it and call expr-l
- ARGS( l,r ) ;eval expr-r, push it, eval expr-l
- FRAME() ;copy of frame pointer
- GLOBAL( sconst ) ;address of label sconst
- LOAD( l ) ;integer load
- NEG( l ),NOT( l ).. ;integer uniops
- ADD( l,r ),SUB( l,r ).. ;integer binops
- CONST( iconst ) ;integer constant
- CAST( l ) ;cast float expr-l to int
- FLOAD( l ) ;float load
- FNEG( l ),FNOT( l ).. ;float uniops
- FADD( l,r ),FSUB( l,r ).;float binops
- FCONST( fconst ) ;float constant
- FCAST( l ) ;cast int expr-l to float
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