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+Ideas
+- Operand classes for instructions
+- Hints in register allocation
+- Fixed register instructions (div, mul)
+- Memory instructions (address of, deref)
+- Structured types
+
+Instructions
+- ADD SUB SDIV UDIV SREM UREM MUL LSL LSR ASL ASR
+- CMP ...
+- ALLOC STORE LOAD
+- PTR
+- CALL BRZ JMP RET