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#include "../../include/mips.h"
#include "test_mips_ymh15.hpp"
#include <iostream>
using namespace std;
int main() {
mips_mem_h ram = mips_mem_create_ram(4096);
mips_cpu_h cpu = mips_cpu_create(ram);
uint32_t inst = gen_instruction(9, 10, 8, 0, 0x21);
uint32_t inst2 = gen_instruction(12, 13, 11, 0, 0x20);
uint32_t ans;
uint32_t ans2;
mips_mem_write(ram, 0, 4, (uint8_t*)&inst);
mips_mem_write(ram, 4, 4, (uint8_t*)&inst2);
mips_cpu_set_register(cpu, 9, 4);
mips_cpu_set_register(cpu, 10, 5);
mips_cpu_set_register(cpu, 12, 232);
mips_cpu_set_register(cpu, 13, 2356);
mips_cpu_step(cpu);
mips_cpu_step(cpu);
mips_cpu_get_register(cpu, 8, &ans);
mips_cpu_get_register(cpu, 11, &ans2);
if(!ans || !ans2) {
printf("failed\n");
} else {
printf("4 + 5 = %d\n", ans);
printf("232 + 2356 = %d\n", ans2);
}
return 0;
}
// R Type
uint32_t gen_instruction(uint32_t src1, uint32_t src2, uint32_t dest,
uint32_t shift, uint32_t function) {
uint32_t inst = 0;
inst = inst | src1 << 21 | src2 << 16 | dest << 11 | shift << 6 |
function;
return inst;
}
// I Type
uint32_t gen_instruction(uint32_t opcode, uint32_t src, uint32_t dest,
uint32_t Astart) {
uint32_t inst = 0;
inst = inst | opcode << 26 | src << 21 | dest << 16 | Astart;
return inst;
}
// J Type
uint32_t gen_instruction(uint32_t opcode, uint32_t memory) {
uint32_t inst = 0;
inst = inst | opcode << 26 | memory;
return inst;
}
uint32_t change_endianness(uint32_t inst) {
inst = (inst << 24 | ((inst << 8)&0x00ff0000) |
((inst >> 8)&0x0000ff00) |inst >> 24);
return inst;
}
void test_endian(mips_mem_h ram) {
uint32_t address, length, data, data0, data1, data2, data3, dataf;
address = 0;
length = 4;
data = 0x01234567;
data0 = 0;
data1 = 0;
data2 = 0;
data3 = 0;
dataf = 0;
printf("Data in: %#010x\n", data);
//data = (data << 24 | ((data << 8)&0x00ff0000) |
// ((data >> 8)&0x0000ff00) |data >> 24);
mips_mem_write(ram, address, length, (uint8_t*)&data);
mips_mem_read(ram, address, 1, (uint8_t*)&data0);
mips_mem_read(ram, address+1, 1, (uint8_t*)&data1);
mips_mem_read(ram, address+2, 1, (uint8_t*)&data2);
mips_mem_read(ram, address+3, 1, (uint8_t*)&data3);
mips_mem_read(ram, address, 4, (uint8_t*)&dataf);
cout << "Data at " << address << ": " << data0 << endl;
cout << "Data at " << address+1 << ": " << data1 << endl;
cout << "Data at " << address+2 << ": " << data2 << endl;
cout << "Data at " << address+3 << ": " << data3 << endl;
printf("Dataf: %#010x\n", dataf);
}
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