Move the core to core/

[fpgaboy.git] / core / insn_ldh_ac.v

diff --git a/core/insn_ldh_ac.v b/core/insn_ldh_ac.v
new file mode 100644 (file)
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
+