If text files are expected to be read multiple times in the course of simulation runs, it is more efficient to convert those text files into a VHDL binary files using the. Download Winrunner 7.0 Free there. Is file of string; string is the type mark type IntegerFile_Typ is file of integer; integer is the type mark type BitVectorFile_Typ is file of Bit_Vector; type RecFile_Typ is.

Function to_bcd ( bin: std_logic_vector ( 7 downto 0 ) ) return std_logic_vector is variable i: integer:= 0; variable bcd: std_logic_vector ( 11 downto 0 ):= ( others =>' 0' ); variable bint: std_logic_vector ( 7 downto 0 ):= bin; begin for i in 0 to 7 loop -- repeating 8 times. Bcd ( 11 downto 1 ):= bcd ( 10 downto 0 ); --shifting the bits. Bcd ( 0 ):= bint ( 7 ); bint ( 7 downto 1 ):= bint ( 6 downto 0 ); bint ( 0 ):=' 0'; if (i '0100' ) then --add 3 if BCD digit is greater than 4. Bcd ( 3 downto 0 ):= bcd ( 3 downto 0 ) + '0011'; end if; if (i '0100' ) then --add 3 if BCD digit is greater than 4.

Autocad 2008 Keygen Internal Error 1 there. Bcd ( 7 downto 4 ):= bcd ( 7 downto 4 ) + '0011'; end if; if (i '0100' ) then --add 3 if BCD digit is greater than 4. Bcd ( 11 downto 8 ):= bcd ( 11 downto 8 ) + '0011'; end if; end loop; return bcd; end to_bcd; Some sample inputs and the corresponding outputs are shown below: bin = '01100011', output = '0000 1001 1001' (99). Bin = '11111110', output = '0010 0101 0100' (254). Bin = '10111011', output = '0001 1000 0111' (187). The code is synthesisable, and the cell usage statistics for Virtex-5 FPGA is shown below: # BELS: 24 # GND: 1 # LUT3: 1 # LUT4: 2 # LUT5: 12 # LUT6: 7 # MUXF7: 1 # IO Buffers: 20 # IBUF: 8 # OBUF: 12 Note:- The code can be modified to convert any length binary number to BCD digits. Download Ds Browser R4 Card. This require very little change in the code.

Function to_bcd ( bin: std_logic_vector((n-1) downto 0) ) return std_logic_vector is variable i: integer:=0; variable j: integer:=1; variable bcd: std_logic_vector(((4*q)-1) downto 0):= (others =>'0'); variable bint: std_logic_vector((n-1) downto 0):= bin; begin for i in 0 to n-1 loop -- repeating 8 times. Bcd(((4*q)-1) downto 1):= bcd(((4*q)-2) downto 0); --shifting the bits. Bcd(0):= bint(n-1); bint((n-1) downto 1):= bint((n-2) downto 0); bint(0):='0'; l1: for j in 1 to q loop if(i '0100') then --add 3 if BCD digit is greater than 4. Bcd(((4*q)-1) downto ((4*q)-4)):= bcd(((4*q)-1) downto ((4*q)-4)) + '0011'; end if; end loop l1; end loop; return bcd; end to_bcd. Function to_bcd ( bin: std_logic_vector((n-1) downto 0) ) return std_logic_vector is variable i: integer:=0; variable j: integer:=1; variable bcd: std_logic_vector(((4*q)-1) downto 0):= (others =>'0'); variable bint: std_logic_vector((n-1) downto 0):= bin; begin for i in 0 to n-1 loop -- repeating 8 times. Bcd(((4*q)-1) downto 1):= bcd(((4*q)-2) downto 0); --shifting the bits.