Problem
Recall that the UART base address is \( 0 x F 0000000 \) and the UART registers and buffers used in Project 3 , in order, are the command register, status register, and receive buffer. If register \( \$ \) s 0 contained 0xF0000004, what address offset from \( \$ \) s0 would need to be used in order to access the command register? \( -8 \) \( -4 \) 0 4 8 None of the above
Solution
Step 1 ：\$s0 = 0xF0000004
Step 2 ：0xF0000004 - 0xF0000000 = 4
Step 3 ：4 - 8 = -4
