6cdbfbe950
- Refactored entire codebase (excluding the Insight component) to accommodate multiple target architectures (no longer specific to AVR) - Deleted 'generate SVD' GDB monitor command - I will eventually move this functionality to the Bloom website - Added unit size property to address spaces - Many other changes which I couldn't be bothered to describe here
54 lines
2.4 KiB
C++
54 lines
2.4 KiB
C++
#pragma once
|
|
|
|
#include "TargetControllerService.hpp"
|
|
|
|
#include "src/Targets/TargetDescriptor.hpp"
|
|
#include "src/Targets/TargetMemory.hpp"
|
|
#include "src/Targets/Microchip/AVR8/OpcodeDecoder/Instruction.hpp"
|
|
#include "src/Targets/Microchip/AVR8/OpcodeDecoder/Decoder.hpp"
|
|
|
|
namespace Services
|
|
{
|
|
class Avr8InstructionService
|
|
{
|
|
public:
|
|
/**
|
|
* For instructions that can change program flow, this function will attempt to figure out where, in program
|
|
* memory, the instruction may jump to.
|
|
*
|
|
* This isn't possible for instructions that perform an indirect jump, where they jump to some address stored
|
|
* in some register.
|
|
*
|
|
* This function should only be called on instructions that can change program flow
|
|
* (Instruction::canChangeProgramFlow == true).
|
|
*
|
|
* @param instruction
|
|
* The subject instruction.
|
|
*
|
|
* @param instructionAddress
|
|
* The byte address of the subject instruction.
|
|
*
|
|
* @param instructions
|
|
* A reference of the InstructionMapping from which the subject instruction was taken, which should, ideally,
|
|
* contain the subsequent instruction.
|
|
*
|
|
* We need access to the subsequent instruction in order to resolve the destination of instructions that skip
|
|
* the subsequent instruction. For example, the SBIC instruction will skip the subsequent instruction, if a
|
|
* bit in an I/O register is cleared. We can't figure out where instructions like SBIC will jump to, if we
|
|
* don't know the size of the subsequent instruction (that will be skipped).
|
|
*
|
|
* If `instructions` does not contain the subsequent instruction, we'll just return std::nullopt for
|
|
* instructions that skip the subsequent instruction.
|
|
*
|
|
* @return
|
|
* The destination byte address the subject instruction may jump to, if we were able to resolve it.
|
|
* Otherwise, std::nullopt.
|
|
*/
|
|
static std::optional<Targets::TargetMemoryAddress> resolveProgramDestinationAddress(
|
|
const Targets::Microchip::Avr8::OpcodeDecoder::Instruction& instruction,
|
|
Targets::TargetMemoryAddress instructionAddress,
|
|
const Targets::Microchip::Avr8::OpcodeDecoder::Decoder::InstructionMapping& instructions
|
|
);
|
|
};
|
|
}
|