X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/e7fe9dc201afb96f401fb2d3cf5aa19aa7e8e796..41341eb3bab6479dc763afbe90c7c31a01d6b60f:/core/insn_ldhl_sp_imm8.v

diff --git a/core/insn_ldhl_sp_imm8.v b/core/insn_ldhl_sp_imm8.v
new file mode 100644
index 0000000..688465a
--- /dev/null
+++ b/core/insn_ldhl_sp_imm8.v
@@ -0,0 +1,26 @@
+`define INSN_LDHL_SP_IMM8		9'b011111000
+
+`ifdef EXECUTE
+	`INSN_LDHL_SP_IMM8: begin
+		case (cycle)
+		0:	begin
+				`EXEC_INC_PC
+			end
+		1:	begin
+				`EXEC_READ(`_PC)
+			end
+		2:	begin
+				`EXEC_NEWCYCLE
+				`EXEC_INC_PC
+			end
+		endcase
+	end
+`endif
+
+`ifdef WRITEBACK
+	`INSN_LDHL_SP_IMM8: begin
+		case (cycle)
+		2:	`_HL <= `_SP + {rdata[7] ? 8'hFF : 8'h00, rdata};
+		endcase
+	end
+`endif