start_addr=0x30000000 end_addr=0x30000003 data_write=0x55AA55AA count=0 match_count=0 # 写入数据 for ((addr=$start_addr; addr<$end_addr+1; addr=addr+1)); do # echo "addr: $addr" #echo -n -e "\x$(printf %08X $(($addr / 256)))\n" echo "addr=$(printf '%X' $addr)" echo -ne "\x55\xAA\x55\xAA" | dd of=/dev/mem bs=4 count=1 seek=$(($addr/8)) conv=notrunc 2>/dev/null data=$(echo -ne "\x55\xAA\x55\xAA" | hexdump -e '/4 "%08x\n"') data_text=$(echo -ne "\x55\xAA\x55\xAA" | hexdump -e '/4 "%08x\n"' | sed 's/../& /g') echo "data_text: $data_text" #echo "data: $data" data_read=$(dd if=/dev/mem bs=4 count=1 skip=$(($addr/4)) 2>/dev/null | hexdump -e '/4 "%08x\n"') #data_read_text=$(dd if=/dev/mem bs=4 count=1 skip=$(($addr/4)) 2>/dev/null | hexdump -e '/4 "%08x\n"' | sed 's/../& /g') echo "data_read_text: $data_read_text" data_read_text=$(dd if=/dev/mem bs=4 count=1 skip=$(($addr/4)) 2>&1 | tee /dev/stderr | hexdump -e '/4 "%08x\n"' | sed 's/../& /g') # echo "data_read: $data_read" if [ "$data_read" == "$data" ]; then match_count=$((match_count+1)) echo "match_count: $match_count" fi count=$((count+1)) echo "count: $count" done :q # 输出结果 # 判断结果 if [ $match_count -eq $count ]; then echo "PASS" else echo "FAIL" fi这段代码count和match_count分别输出什么？

在这段代码中，count和match_count分别用于统计写入次数和匹配次数。

count用于记录写入数据的次数，即循环次数。

match_count用于记录读取数据与写入数据匹配的次数。

在代码中，每次写入数据后，会读取相应地址的数据，如果读取到的数据与写入的数据一致，则match_count加1。循环结束后，如果match_count等于count，则说明所有写入的数据都成功读取，测试通过，否则测试失败。