ENTITY rf2_mid_mem_r0 IS PORT ( dinx : in BIT; write : in BIT; reada : in BIT; readb : in BIT; busa : out MUX_BIT BUS; busb : out MUX_BIT BUS; vdd : in BIT; vss : in BIT ); END rf2_mid_mem_r0; ARCHITECTURE VBE OF rf2_mid_mem_r0 IS BEGIN ASSERT (vdd and not (vss)) REPORT "power supply is missing on rf2_mid_mem_r0" SEVERITY WARNING; label1 : BLOCK (reada = '1') BEGIN busa <= GUARDED '0'; END BLOCK label1; label2 : BLOCK (readb = '1') BEGIN busb <= GUARDED '0'; END BLOCK label2; END;