1 files changed, 101 insertions, 0 deletions
diff --git a/src/ymh15/test_mips.cpp b/src/ymh15/test_mips.cpp
new file mode 100644
index 0000000..3523844
--- /dev/null
+++ b/src/ymh15/test_mips.cpp
@@ -0,0 +1,101 @@
+#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);
+}
+