Repaired last few errors in modules and ensured compilation with QUARTUS_BUILD global flag in Quartus build settings and compiled fully (no errors other than pin assignments)

modules/assignment2.sv

@@ -65,6 +65,9 @@ module assignment2 #(width=5, ramsz=9, romsz=10) (input logic [0:0] clk);
     logic [2**width-1:0] rd_shifter;
     shifter #(width) SHIFTER (instruction[2:0], rt, rs[4:0], instruction[10:6], rd_shifter);
     
-    rd = en_alu ? rd_alu : (en_shifter ? : rd_shifter : ({(2**width){1'b0}}));
+   assign rd = en_alu
+          ? rd_alu
+          : (en_shifter ? rd_shifter : {2**width{1'b0}});
+
 endmodule
 `endif

modules/instruction_module_classifier.sv

@@ -1,12 +1,12 @@
-`ifndef INSTRUCTION_CLASSIFIER_H_SV
-`define INSTRUCTION_CLASSIFIER_H_SV
+`ifndef INSTRUCTION_MODULE_CLASSIFIER_H_SV
+`define INSTRUCTION_MODULE_CLASSIFIER_H_SV
 
 module instruction_module_classifier(
     input logic [2:0] op,
     output logic en_shifter,
     output logic en_jmp,
     output logic en_mul,
-    output logic en_alu,
+    output logic en_alu
 );
     always_comb begin
         en_shifter = (op & 3'b111) == 3'b000;
@@ -15,4 +15,4 @@ module instruction_module_classifier(
         en_alu = (op & 3'b100) == 3'b100;
     end
 endmodule
-`endif
+`endif

modules/rom.sv

@@ -12,7 +12,7 @@ module rom #(parameter m=7,p=4) (
     //Load the program in memory
     // The machine code stored in text file program.dat written in Hex format
     initial begin
-        `ifdef QUARTUS_BUILD
+        `ifdef QUARTUS_SYNTH
             $readmemh("../../asm/bin/ELEC4720-2026s2-Ass-02-Demo.txt",mem); //$readmemb for binary
         `else
             $readmemh("./asm/bin/ELEC4720-2026s2-Ass-02-Demo.txt",mem); //$readmemb for binary