X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/77ab69d7bb0902e6ebf0994159ed2205f8413e34..b057a5d6e6db6db06ae33703ca72cd235eec91d6:/core/insn_ldh_ac.v

diff --git a/core/insn_ldh_ac.v b/core/insn_ldh_ac.v
new file mode 100644
index 0000000..a2ff5cc
--- /dev/null
+++ b/core/insn_ldh_ac.v
@@ -0,0 +1,24 @@
+`ifdef EXECUTE
+	`INSN_LDH_AC: begin
+		case (cycle)
+		0:	if (opcode[4])	// LD A,(C)
+				`EXEC_READ(({8'hFF,`_C}))
+			else
+				`EXEC_WRITE(({8'hFF,`_C}), `_A)
+		1:	begin
+				`EXEC_NEWCYCLE
+				`EXEC_INC_PC
+			end
+		endcase
+	end
+`endif
+
+`ifdef WRITEBACK
+	`INSN_LDH_AC: begin
+		case (cycle)
+		0:	begin /* Type F */ end
+		1:	if (opcode[4]) `_A <= rdata;
+		endcase
+	end
+`endif
+