Package ghidra.pcode.emu.jit.gen.op

Interface IntExtUnOpGen<T extends JitUnOp>

Type Parameters:

T - the class of p-code op node in the use-def graph

All Superinterfaces:

OpGen<T>, UnOpGen<T>

All Known Implementing Classes:

CopyOpGen, IntSExtOpGen, IntZExtOpGen

public interface IntExtUnOpGen<T extends JitUnOp>
extends UnOpGen<T>

An extension for unary integer extension operators

The strategy here is to do nothing more than invoke the readers and writers. Because those are responsible for converting between the types, with the appropriate signedness, the work of extension is already done. We need only to know whether or not the operators should be treated as signed or unsigned. Thankfully, that method is already required by a super interface.

Nested Class Summary

Nested classes/interfaces inherited from interface ghidra.pcode.emu.jit.gen.op.OpGen

OpGen.DeadOpResult, OpGen.LiveOpResult, OpGen.OpResult

Method Summary

Modifier and Type	Method	Description
default <THIS extends JitCompiledPassage> OpGen.OpResult	genRun(Emitter<Emitter.Bot> em, Local<Types.TRef<THIS>> localThis, Local<Types.TInt> localCtxmod, Methods.RetReq<Types.TRef<JitCompiledPassage.EntryPoint>> retReq, JitCodeGenerator<THIS> gen, T op, JitControlFlowModel.JitBlock block, Scope scope)	Emit bytecode into the run method.

Methods inherited from interface ghidra.pcode.emu.jit.gen.op.UnOpGen

ext, isSigned

Method Details

genRun

default <THIS extends JitCompiledPassage>
OpGen.OpResult genRun(Emitter<Emitter.Bot> em,
 Local<Types.TRef<THIS>> localThis,
 Local<Types.TInt> localCtxmod,
 Methods.RetReq<Types.TRef<JitCompiledPassage.EntryPoint>> retReq,
 JitCodeGenerator<THIS> gen,
 T op,
 JitControlFlowModel.JitBlock block,
 Scope scope)

Description copied from interface: OpGen

Emit bytecode into the run method.

This method must emit the code needed to load any input operands, convert them to the appropriate type, perform the actual operation, and then if applicable, store the output operand. The implementations should delegate to JitCodeGenerator.genReadToStack(Emitter, Local, JitVal, ghidra.pcode.emu.jit.analysis.JitType.SimpleJitType, Ext), JitCodeGenerator.genWriteFromStack(Emitter, Local, JitVar, ghidra.pcode.emu.jit.analysis.JitType.SimpleJitType, Ext, Scope) or similar for mp-int types.

Specified by:

genRun in interface OpGen<T extends JitUnOp>

Type Parameters:

THIS - the type of the generated passage

Parameters:

em - the emitter typed with the empty stack

localThis - a handle to the local holding the this reference

localCtxmod - a handle to the local holding ctxmod

retReq - an indication of what must be returned by this JitCompiledPassage.run(int) method.

gen - the code generator

op - the p-code op (use-def node) to translate

block - the basic block containing the p-code op

scope - a scope for generating temporary local storage

Returns:

the result of emitting the p-code op's bytecode