Hi,
I'm Yin Keng. I'm doing a project on displaying two 7-segment displays
using a 8051 controller card. However, the 8051 was latched out to 5
output data pin on the card itself.

I port out the 4 output data pins from the card to 2 other latches, and
uses a 7404 inverter and the last pin to select which latch to be
enabled.

Can anyone help me in the source code for this application using assembly langauge.