On Thu, 6 Dec 2001, [iso-8859-1] Simon-Thijs de Feber wrote:

> Hello,
>
> I am in doubt how to solve the following issue.
> I have a 4 bit input and need to convert it to a 6 bit
> output.
> This can probably be done with a look-up table
> (FPGA/GAL/PIC)
> The Table is as follows
> In     Out
> 0000   111111
> 0001   111101
> 0010   111110
> 0011   111010
> 0100   111000
> 0101   111010
> 0110   101001
> 0111   101000
> 1000   110000
> 1001   010000
>

 include 16f628_4
 include jpic628
 cmcon = 0x07

 var byte input is port_a_low
 port_a_low_direction = input
 var byte output is port_b
 port_b_direction = output

 forever loop
 if    input = 0     then output = 0x_ff
 elsif input = 0x_01 then output = 0x_fd
 elsif input = 0x_02 then output = 0x_fe
; ettcetera
 endif
 end loop

 jal, no lookup table

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