Better print :)

src/cpu/rv32cpu.c

@@ -616,6 +616,9 @@ static void cpu_print_instruction(instruction_t* instruction)
 			// Jump And Link Register
 			// Sign extend immediate from 12 bits to 32 bits
 			uint32_t immediate = (instruction->immediate & 0xFFF) | (instruction->immediate & 0x800 ? 0xFFFFF000 : 0);
+			if(immediate == 0x0 && instruction->rd == 0 && instruction->rs1 == 1)
+				printf("ret\n");
+			else
 				printf("jalr x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
 			break;
 		}
@@ -666,23 +669,23 @@ static void cpu_print_instruction(instruction_t* instruction)
 			switch(instruction->func3)
 			{
 				case FUNC3_LB:
-					printf("lb x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
+					printf("lb x%u, %d(x%u)\n", instruction->rd, immediate, instruction->rs1);
 					break;
 				case FUNC3_LH:
 					// Load Halfword (16-bits)
-					printf("lh x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
+					printf("lh x%u, %d(x%u)\n", instruction->rd, immediate, instruction->rs1);
 					break;
 				case FUNC3_LW:
 					// Load Word (32-bits)
-					printf("lw x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
+					printf("lw x%u, %d(x%u)\n", instruction->rd, immediate, instruction->rs1);
 					break;
 				case FUNC3_LBU:
 					// Load Byte Unsigned (8-bits)
-					printf("lbu x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
+					printf("lbu x%u, %d(x%u)\n", instruction->rd, immediate, instruction->rs1);
 					break;
 				case FUNC3_LHU:
 					// Load Halfword Unsigned (16-bits)
-					printf("lhu x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
+					printf("lhu x%u, %d(x%u)\n", instruction->rd, immediate, instruction->rs1);
 					break;
 				default:
 					fprintf(stderr, "Warning: Unknown func3 0x%x for load instruction\n", instruction->func3);
@@ -700,15 +703,15 @@ static void cpu_print_instruction(instruction_t* instruction)
 			{
 				case FUNC3_SB:
 					// Store Byte (8-bits)
-					printf("sb x%u, x%u, 0x%x\n", instruction->rs1, instruction->rs2, immediate);
+					printf("sb x%u, %d(x%u)\n", instruction->rs1, immediate, instruction->rs2);
 					break;
 				case FUNC3_SH:
 					// Store Halfword (16-bits)
-					printf("sh x%u, x%u, 0x%x\n", instruction->rs1, instruction->rs2, immediate);
+					printf("sh x%u, %d(x%u)\n", instruction->rs1, immediate, instruction->rs2);
 					break;
 				case FUNC3_SW:
 					// Store Word (32-bits)
-					printf("sw x%u, x%u, 0x%x\n", instruction->rs1, instruction->rs2, immediate);
+					printf("sw x%u, %d(x%u)\n", instruction->rs1, immediate, instruction->rs2);
 					break;
 				default:
 					fprintf(stderr, "Warning: Unknown func3 0x%x for store instruction\n", instruction->func3);
@@ -728,7 +731,7 @@ static void cpu_print_instruction(instruction_t* instruction)
 			{
 				case FUNC3_ADDI:
 					// ADD Immediate
-					printf("addi x%u, x%u, 0x%x\n", instruction->rd, instruction->rs1, immediate);
+					printf("addi x%u, x%u, %d\n", instruction->rd, instruction->rs1, immediate);
 					break;
 				case FUNC3_SLTI:
 					// Set Less Than Immediate