Introduction - If you have any usage issues, please Google them yourself
This is called MAX7219 assembler (Nm7219.ASM) of the C51 process,*//* file name CALL7219.c.*//* Function: This procedure is mainly to show the buffer zone in the 8-digit LED display,*//* display buffer for the MCU RAM area 40H, 41HH, ... 47H consecutive 8 byte*