372A 读写操作子程序 read 为读372A内部寄存器子程序，将 0-Fh 寄存器内容读到CPU内部RAM 10H-1FH。 write 为写内部寄存器子程序，r7中放需改写的寄存器地址,r6中放需写入的数据。-372A subroutine to read and write operations for the time read the internal register subroutine 372A, 0-Fh register will read the contents of CPU internal RAM 10H-1FH. write the internal registers for the write subroutine, r7 put the register address to be rewritten, r6 put the need to write data.