X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/b057a5d6e6db6db06ae33703ca72cd235eec91d6..e4fd7c1673a5a587a2eb8d4c2b8e22d921b949b9:/core/insn_alu8.v

diff --git a/core/insn_alu8.v b/core/insn_alu8.v
index 2921b18..26fc77e 100644
--- a/core/insn_alu8.v
+++ b/core/insn_alu8.v
@@ -1,3 +1,6 @@
+`define INSN_ALU8		9'b010xxxxxx	// 10 xxx yyy
+`define INSN_ALU8IMM		9'b011xxx110
+
 `ifdef EXECUTE
 	`INSN_ALU8,`INSN_ALU8IMM: begin
 		if ((opcode[7:6] == 2'b11) && (cycle == 0)) begin	// alu8imm
@@ -66,21 +69,21 @@
 			end
 			`INSN_alu_AND: begin
 				`_A <= `_A & tmp;
-				`_F <=	{ /* Z */ ((`_A & tmp) == 0) ? 1'b1 : 1'b0,
+				`_F <=	{ /* Z */ ((`_A & tmp) == 8'b0) ? 1'b1 : 1'b0,
 					  3'b010,
 					  `_F[3:0]
 					};
 			end
 			`INSN_alu_OR: begin
 				`_A <= `_A | tmp;
-				`_F <=	{ /* Z */ ((`_A | tmp) == 0) ? 1'b1 : 1'b0,
+				`_F <=	{ /* Z */ ((`_A | tmp) == 8'b0) ? 1'b1 : 1'b0,
 					  3'b000,
 					  `_F[3:0]
 					};
 			end
 			`INSN_alu_XOR: begin
 				`_A <= `_A ^ tmp;
-				`_F <=	{ /* Z */ ((`_A ^ tmp) == 0) ? 1'b1 : 1'b0,
+				`_F <=	{ /* Z */ ((`_A ^ tmp) == 8'b0) ? 1'b1 : 1'b0,
 					  3'b000,
 					  `_F[3:0]
 					};