41 lines
1 KiB
C++
41 lines
1 KiB
C++
|
/* This file is part of the dynarmic project.
|
||
|
|
* Copyright (c) 2018 MerryMage
|
||
|
|
* This software may be used and distributed according to the terms of the GNU
|
||
|
|
* General Public License version 2 or any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "common/assert.h"
|
||
|
|
#include "inst_gen.h"
|
||
|
|
#include "rand_int.h"
|
||
|
|
|
||
|
|
InstructionGenerator::InstructionGenerator(const char* format){
|
||
|
|
ASSERT(std::strlen(format) == 32);
|
||
|
|
|
||
|
|
for (int i = 0; i < 32; i++) {
|
||
|
|
const u32 bit = 1u << (31 - i);
|
||
|
|
switch (format[i]) {
|
||
|
|
case '0':
|
||
|
|
mask |= bit;
|
||
|
|
break;
|
||
|
|
case '1':
|
||
|
|
bits |= bit;
|
||
|
|
mask |= bit;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
// Do nothing
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 InstructionGenerator::Generate() const {
|
||
|
|
u32 inst;
|
||
|
|
do {
|
||
|
|
u32 random = RandInt<u32>(0, 0xFFFFFFFF);
|
||
|
|
inst = bits | (random & ~mask);
|
||
|
|
} while (IsInvalidInstruction(inst));
|
||
|
|
return inst;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::vector<InstructionGenerator> InstructionGenerator::invalid_instructions;
|