cpu/Makefile

@@ -30,6 +30,6 @@ boot_code.txt:boot_code.bin
 boot_code.bin:boot_code.asm
 	as86 -0 $< -b $@
 
-.PHONY: disas
+.PHONY: dumpas
-disas: boot_code.bin
+dumpas: boot_code.bin
 	objdump -D -b binary -m i8086 boot_code.bin

cpu/boot_code.asm

@@ -1,6 +1,3 @@
-MOV AX,#0x0000
-MOV CX,#0x0000
-MOV BX,#0x0000
 ADD AX,#0xDEAD
 ADD CX,#0xBEEF
 ADD CX,#0x4111

cpu/processor.v

@@ -73,7 +73,7 @@ mux4 #(.WIDTH(16)) MUX16_1A(
 	ADDER16_1A);
 
 mux4 #(.WIDTH(16)) MUX16_1B(
-	PARAM2,
+	16'b0,
 	reg_read_data,
 	16'b0,
 	16'b0,
@@ -186,20 +186,6 @@ always @(posedge clock) begin
 						end
 					endcase
 				end
-				6'b101100,
-				6'b101101,
-				6'b101110,
-				6'b101111 : begin
-					/*Move Immediate to register*/
-					unaligned_access=~unaligned_access;
-					in1_sel=2'b00;
-					in2_sel=2'b00;
-					out_sel=2'b11;
-					reg_addr=CIR[10:8];
-					ALU_OUT=0;
-					PARAM2=0;
-					state=`PROC_DE_LOAD_16_PARAM;
-				end
 				6'b111111 : begin
 					/* INC */
 					if (CIR[9:9] == 1 ) begin

cpu/registers.v

@@ -2,6 +2,16 @@ module register_file ( input [2:0]addr1, inout [15:0]data1, input wire read1, in
 reg [15:0] registers [7:0];
 assign data2 = !read2 ? registers[addr2] : 'hz;
 assign data1 = !read1 ? registers[addr1] : 'hz;
+initial begin 
+	registers['b000]=0;
+	registers['b001]=0;
+	registers['b010]=0;
+	registers['b011]=0;
+	registers['b100]=0;
+	registers['b101]=0;
+	registers['b110]=0;
+	registers['b111]=0; // TODO Don't clear. Remove after we implement the MOV instruction
+end
 always @(negedge write1) begin
 	registers[addr1] = data1;
 	//$display("registers: 0:%04x 1:%04x 2:%04x",registers[0],registers[1],registers[2]);