.

pa4/Makefile

@@ -0,0 +1,17 @@
+SRCS = $(wildcard src/*.c)
+HEADERS = $(wildcard src/*.h)
+CC = gcc
+CFLAGS = -g -std=c99
+LDFLAGS = -lm
+
+default: simulator
+
+simulator: $(SRCS) $(HEADERS)
+	@echo "Building $@..."
+	@echo "Sources: $(SRCS)"
+	@echo "Headers: $(HEADERS)"
+	$(CC) $(CFLAGS) -o $@ $(SRCS) $(LDFLAGS)
+
+clean:
+	-rm -f simulator
+	-rm -f pipe_trace.txt *.out mdump.txt cdump.txt

pa4/README.md

@@ -0,0 +1,24 @@
+# Programming Assignment 4: Pipelined riscy-uconn Simulator With Scoreboard Algorithm
+A pipelined CPU simulator for the MIPS-like riscy-uconn instruction set architecture implementing a
+scoreboard algorithm. The simulator translates machine code created by the riscy-uconn assembler, and executes
+instructions one at a time.
+
+## Build Instructions
+    $ make
+
+## Usage
+    $ ./simulator assembled_program_file.out
+
+where `assembled_program_file.out` may be any assembled program file generated by the riscy-uconn
+assembler.
+
+## Unit Tests
+Several unit tests are provided in the `unittests` directory. These unit tests must be assembled
+before use with the simulator by executing the following command:
+
+    $ ../assembler/assembler unittests/unit_test_file.asm unittests/unit_test_file.out
+
+where `unit_test_file` is any of the unit test files (written in riscy-uconn assembly) in the
+`unittests` directory.
+
+

pa4/src/instruction_map.c

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+/**
+ * University of Connecticut
+ * CSE 5302 / ECE 5402: Computer Architecture
+ * Fall 2021
+ * 
+ * Programming Assignment 4: Pipelined riscy-uconn Simulator With Scoreboard
+ * 
+ * riscy-uconn: instruction_map.c
+ * 
+ * DO NOT MODIFY THIS FILE
+ * 
+ */
+
+#include "instruction_map.h"
+
+char* opcode_map[] = {
+    [RTYPEOP]   = "RTYPEOP",
+    [LW]        = "lw",
+    [SW]        = "sw",
+    [ANDI]      = "andi",
+    [ADDI]      = "addi",
+    [ORI]       = "ori",
+    [SLTI]      = "slti",
+    [LUI]       = "lui",
+    [BEQ]       = "beq",
+    [BNE]       = "bne",
+    [J]         = "j",
+    [JAL]       = "jal"
+};
+
+char* func_map[] = {
+    [ADD] = "add",
+    [SUB] = "sub",
+    [AND] = "and",
+    [OR]  = "or",
+    [SLL] = "sll",
+    [SRL] = "srl",
+    [SLT] = "slt",
+    [JR]  = "jr"
+};

pa4/src/instruction_map.h

@@ -0,0 +1,43 @@
+/**
+ * University of Connecticut
+ * CSE 5302 / ECE 5402: Computer Architecture
+ * Fall 2021
+ * 
+ * Programming Assignment 4: Pipelined riscy-uconn Simulator With Scoreboard
+ * 
+ * riscy-uconn: instruction_map.h
+ * 
+ * DO NOT MODIFY THIS FILE
+ * 
+ */
+
+#pragma once
+
+extern char* opcode_map[];
+extern char* func_map[];
+
+/* R-Type Instructions */
+#define RTYPEOP     0x0
+#define ADD         0x20
+#define SUB         0x21
+#define AND         0x24
+#define OR          0x25
+#define SLL         0x0
+#define SLT         0x2A
+#define SRL         0x2
+#define JR          0x8
+
+/* I-Type Instructions */
+#define LW          0x23
+#define SW          0x2B
+#define ANDI        0xC
+#define ORI         0xD
+#define LUI         0xF
+#define BEQ         0x4
+#define BNE         0x5
+#define SLTI        0xA
+#define ADDI        0x8
+
+/* J-Type Instructions */
+#define J           0x2
+#define JAL         0x3

pa4/src/register_map.c

@@ -0,0 +1,49 @@
+/**
+ * University of Connecticut
+ * CSE 5302 / ECE 5402: Computer Architecture
+ * Fall 2021
+ * 
+ * Programming Assignment 4: Pipelined riscy-uconn Simulator With Scoreboard
+ * 
+ * riscy-uconn: register_map.c
+ * 
+ * DO NOT MODIFY THIS FILE
+ * 
+ */
+
+#include "register_map.h"
+
+const char* register_map[] = {
+     [0]  = "zero",
+     [1]  = "at",
+     [2]  = "v0",
+     [3]  = "v1",
+     [4]  = "a0",
+     [5]  = "a1",
+     [6]  = "a2",
+     [7]  = "a3",
+     [8]  = "t0",
+     [9]  = "t1",
+     [10] = "t2",
+     [11] = "t3",
+     [12] = "t4",
+     [13] = "t5",
+     [14] = "t6",
+     [15] = "t7",
+     [16] = "s0",
+     [17] = "s1",
+     [18] = "s2",
+     [19] = "s3",
+     [20] = "s4",
+     [21] = "s5",
+     [22] = "s6",
+     [23] = "s7",
+     [24] = "t8",
+     [25] = "t9",
+     [26] = "k0",
+     [27] = "k1",
+     [28] = "gp",
+     [29] = "sp",
+     [30] = "fp",
+     [31] = "ra",
+};

pa4/src/register_map.h

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+/**
+ * University of Connecticut
+ * CSE 5302 / ECE 5402: Computer Architecture
+ * Fall 2021
+ * 
+ * Programming Assignment 4: Pipelined riscy-uconn Simulator With Scoreboard
+ * 
+ * riscy-uconn: register_map.h
+ * 
+ * DO NOT MODIFY THIS FILE
+ * 
+ */
+
+#pragma once
+
+extern const char* register_map[];