emory build out: A note about the memory for our virtual $6502.$ The

$6502$s word size is $1$ byte $(8$ bit$).$ That means that any particular

location in memory can represent a range of $2^8(256,$ or $0-255).$ The

$6502$ used $16-$bit memory addressing, however. This means that the

supported size of memory was $2^16(65536,0-65535$ or $64$K$).$ When

working directly with memory addresses and the values stored in memory,

it is common to represent values with hexadecimal characters,

$($remember$,1$ hex number represents $4$ bits$).$