Computer Organization and Architecture question It's on assembly language

Can someone please explain it to me that how the values for -10 is FFFO -33 is CD -16 is EA IN DOSBOX

Do we have to first convert them to binary and then flip the numbers in 2s complement? Or there's an another easy way. Below is the question Please explain for all three values.. Thanks

Get into DEBUG and enter the following assembly language instructions using the A command mov ax, -10 mov bh, -33 mov bl -16 nop Run the program using the T command. EXPLAIN how the hexadecimal values in AX and BX were arrived at