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-- -- sys09bug_rom2k_b4.vhd -- -- SYS09BUG Monitor ROM for the 6809 -- Using 4 x RAMB4_S8 in the XC2S300e -- -- John Kent -- 3rd February 2007 -- Has the same entity name as SBUG so -- it can be easily exchanged. -- library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; library unisim; use unisim.vcomponents.all; entity mon_rom is Port ( clk : in std_logic; rst : in std_logic; cs : in std_logic; rw : in std_logic; addr : in std_logic_vector (10 downto 0); wdata : in std_logic_vector (7 downto 0); rdata : out std_logic_vector (7 downto 0) ); end mon_rom; architecture rtl of mon_rom is signal rdata0 : std_logic_vector (7 downto 0); signal rdata1 : std_logic_vector (7 downto 0); signal rdata2 : std_logic_vector (7 downto 0); signal rdata3 : std_logic_vector (7 downto 0); signal ena0 : std_logic; signal ena1 : std_logic; signal ena2 : std_logic; signal ena3 : std_logic; signal we : std_logic; component RAMB4_S8 generic ( INIT_00, INIT_01, INIT_02, INIT_03, INIT_04, INIT_05, INIT_06, INIT_07, INIT_08, INIT_09, INIT_0A, INIT_0B, INIT_0C, INIT_0D, INIT_0E, INIT_0F : bit_vector (255 downto 0) ); port ( clk, we, en, rst : in std_logic; addr : in std_logic_vector(8 downto 0); di : in std_logic_vector(7 downto 0); do : out std_logic_vector(7 downto 0) ); end component RAMB4_S8; begin ROM0 : RAMB4_S8 generic map ( INIT_00 => x"A780A610C6C0DF8E106DFE8E2EFA1AFB1EFB8FFBCAFCB5FC97FC9DFC61F814F8", INIT_01 => x"17431FE4A7D0866AAFDD8C30FB265AE26F0CC65B0117E0DFBF00E08EF9265AA0", INIT_02 => x"03179FFE8E0C0417F62A5A19048B0327856D0DC64FD0DF8E4703177DFE8E9B04", INIT_03 => x"17408B981F4F04175E86092C2081891FF1270D817F84330417B30217A6FE8E2E", INIT_04 => x"20F00217A8FE8EF5266DFE8C02300F2780E137FE8E20C0022F60C14304174804", INIT_05 => x"17A4A60B0417A50317211F650217AEFE8E121F2D296B03173B341FBC2094ADC0", INIT_06 => x"27A4A1A4A7390F260D8117275E81DD271881E127088111285E0317030417A503", INIT_07 => x"0B031705201F30C0DF8E321FA20217BE203F31C2202131E103173F86E4031708", INIT_08 => x"279603170527E4AC011FF0C4201F0634F0C41000C3101F390124E1AC20340629", INIT_09 => x"265A8A03172C031780A610C69203172E0317E4AEEE0117AEFE8E103439623203", INIT_0a => x"29B70217BC20EE265A7303172E8602237E810425208180A610C6E1AE820317F5", INIT_0b => x"3984A73F86A4AFA0A709273F8184A60F271035558DFFFF8E10341A24C0DF8C1E", INIT_0c => x"4AAF0427268D1F304AAE431F39FB265A188D08C6E3DF8E104203163F86450317", INIT_0d => x"A7A0A7A0A7FF8684A7A4A604263F8184A60A24C0DF8C21AEB9FE16480217068D", INIT_0e => x"0186398D46E0B7E086408D393D3139F7265A0427A1ACA0A608C6E3DF8E1039A0", INIT_0f => x"178D47E0B7208645E0B744E0B743E0B74F42E0B701862D8D47E0B7EF8641E0B7" ) port map ( clk => clk, en => ena0, we => we, rst => rst, addr(8 downto 0) => addr(8 downto 0), di(7 downto 0) => wdata, do(7 downto 0) => rdata0 ); ROM1 : RAMB4_S8 generic map ( INIT_00 => x"E0B6F926808547E0B63B341F4AAF00C08EF42600C28C80A740E0B6218D00C08E", INIT_01 => x"54545454A6E6D0DF8E104444444462A6363439F927088547E0B639F227408547", INIT_02 => x"FCBD8435FD265A20C60434B63562E762EA62A70F8462A65858585853A6E6E4E7", INIT_03 => x"0234A80117F12631813D2739811F0217F9265381260217E2DF7F6402171186DF", INIT_04 => x"E0EB02340C2904358E01170434E46AE46AE4EBE0EBE0E6103421299101172629", INIT_05 => x"0117E26F0E02161386E2DF731602173F86BA27FFC102355FEB2080A70527E46A", INIT_06 => x"2320008310062762A3E4ECF501171286DFFCBDE4AF0130492562AC4D2930344A", INIT_07 => x"1780A684EB63EB62EB68011762AE750117981F03CB2F0017EFFE8E64E720C602", INIT_08 => x"10347120028D396532B301171486C326E4AC62AF5B0117981F53F526646A6501", INIT_09 => x"8D618D394AAF0229F68DF28D910017E50016F800169D01169035690017A0FE8E", INIT_0a => x"498D3944AF0229D58DD18D5E8D3946AF0229E08DDC8D728D3948AF0229EB8DE7", INIT_0b => x"8D3941A70229B18DB08D588D3942A70229BC8DBB8D6C8D3943A70229C78DC68D", INIT_0c => x"BF0016311FF48DB2FE8E39F726048180A63B011739C4A7808A0429A68DA58D5F", INIT_0d => x"8DC4FE8EE12044AED78DCAFE8EB4001643A6E18DD0FE8EF42048AEEA8DBEFE8E", INIT_0e => x"D02042A6B38DDBFE8ED92041A6BC8DD6FE8ECF204AAEC58DB8FE8ED82046AECE", INIT_0f => x"AEFE8EBF8DB88DB08DA98DA18D27FF17AEFE8E900016E7FE8EC4A6AA8DE0FE8E" ) port map ( clk => clk, en => ena1, we => we, rst => rst, addr(8 downto 0) => addr(8 downto 0), di(7 downto 0) => wdata, do(7 downto 0) => rdata1 ); ROM2 : RAMB4_S8 generic map ( INIT_00 => x"3C29088D011F42290E8DB400172D86121F4D29098DD520CE8DC78DC08D17FF17", INIT_01 => x"811D253081578D39E0AB04342829078D891F484848483229118D903561A71034", INIT_02 => x"3439021A39578003226681072561813937800322468112254181393080032239", INIT_03 => x"C602344D20078B022F3981308B0F840235048D4444444402340235028D023510", INIT_04 => x"BE10342D207F84048D0627E2DF7D8235F1265A3B8D3F8D2D860225E46880A608", INIT_05 => x"B605260185E0DF9FA60234903501A6EE27018584A620E08E0926018584A6E0DF", INIT_06 => x"BE138D903501A70235FA27028584A6E0DFBE1234458D2086008D8235018520E0", INIT_07 => x"E703E702A7FBDFFD0000CC30E08E39E2DFB7FF86016D84A7118684A70386E0DF", INIT_08 => x"810D20748D0427FEDF7D30E08E16345986028D1B86FEDF7F01E702C6FDDFFD04", INIT_09 => x"8E0027101A816C0027101B814100271008819635C5001784A70520098D042420", INIT_0a => x"5CFBDFFC51260A81110027100B812C0027100C81990027100D81450027101681", INIT_0b => x"DFB66800164A3327FBDFB67400165A3C0027105DFBDFFC9900168300261019C1", INIT_0c => x"54816E002710598116273DC1FEDFF65800160000CC5B00162500271050814CFB", INIT_0d => x"ED224F812080FEDF7F39FDDFB70426FDDF7D39FEDF7F39FEDFB704263D813127", INIT_0e => x"26508102A74C84E720C6FBDFB6168D0000CC1B20E12218C120C0FDDF7FFDDFF6", INIT_0f => x"5AEA2619C15C4FF02650814CFBDFFC3903E702A7FBDFFDFCDFF64F39FEDF7FF7" ) port map ( clk => clk, en => ena2, we => we, rst => rst, addr(8 downto 0) => addr(8 downto 0), di(7 downto 0) => wdata, do(7 downto 0) => rdata2 ); ROM3 : RAMB4_S8 generic map ( INIT_00 => x"FCDFF6F42650C15C84A702E7FBDFF72086FBDFF604E75F012519C15C04E6E78D", INIT_01 => x"7FFB0369FB0274FB0139FEDFF702E7FBDFF75FE4205F03E7FCDFF7082719C15C", INIT_02 => x"F84DBCFA505EFA4CA5F847FDF8455CF94248FB1953FB183DFB1531FB105EFB04", INIT_03 => x"000A0DFFFFFFFF94F9A7F8A7F8A7F8A7F894F9D5F94488F958F1F853EDFB52A8", INIT_04 => x"4B04202D2020303033582D354220524F4620342E312047554239305359530000", INIT_05 => x"2020043D43502020043D5053202004202D20043F54414857043E040000000A0D", INIT_06 => x"043D422020043D412020043D50442020043D58492020043D59492020043D5355", INIT_07 => x"000000000000000000000000000004315343565A4E4948464504203A43432020", INIT_08 => x"300B2784AC1084AF1084EEAA558E10A0D08E84A7F086FB264A80A70F86F0FF8E", INIT_09 => x"2DA7D0DF8E10C0DFCE10FDFFB74444444443101F84EFD620ED26A0F08C00F089", INIT_0a => x"1084AF10AA558E1084EE2227A0F08C00F08930FB2A4AA66F0C862FA7F0862E6F", INIT_0b => x"2EA7D0DF8E10F186D520A5A70F88891F44444444101FD0DF8E1084EFE92684AC", INIT_0c => x"8EF32D0C814C80E7A66F0427A6E6211F4F2CE7A66F1420F92A4A0526A6E60C86", INIT_0d => x"9F6EC6DF9F6EC4DF9F6EC0DF9F6E62F816E2DFF753F9265A80A7A0A610C6F0FF", INIT_0e => x"0822CEDFBC8B300F27FFFF8CCCDFBE49584F4AAF80E64AAE431FCADF9F6EC8DF", INIT_0f => x"00FFB2FFC2FFBEFFBAFFB6FFC6FFB2FFC2DF9F6E42EE1F37F16E44AEC4EC1034" ) port map ( clk => clk, en => ena3, we => we, rst => rst, addr(8 downto 0) => addr(8 downto 0), di(7 downto 0) => wdata, do(7 downto 0) => rdata3 ); my_sys09bug_b4 : process ( cs, rw, addr, rdata0, rdata1, rdata2, rdata3 ) begin case addr(10 downto 9) is when "00" => ena0 <= cs; ena1 <= '0'; ena2 <= '0'; ena3 <= '0'; rdata <= rdata0; when "01" => ena0 <= '0'; ena1 <= cs; ena2 <= '0'; ena3 <= '0'; rdata <= rdata1; when "10" => ena0 <= '0'; ena1 <= '0'; ena2 <= cs; ena3 <= '0'; rdata <= rdata2; when "11" => ena0 <= '0'; ena1 <= '0'; ena2 <= '0'; ena3 <= cs; rdata <= rdata3; when others => null; end case; we <= not rw; end process; end architecture rtl;
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