Decoding variable into 4 digits of BCD, are there simple ways to this?

[CuriousOne]

Hello. I have giant 7 segment 4 digit display, which is driven by 4 CD4543BE (Inputs tied together, latches driven separately).

Say I connected it to MCU, with 1 digit display I can do something like this

IF A=1 THEN HIGH PINA: LOW PINB: LOW PINC: LOW PIND
IF A=2 THEN HIGH PINB: LOW PINA: LOW PINC: LOW PIND

And so on. There will be 10 lines of code in case of 1 digit display. But with 2-3-4 digits same approach will generate a huge code. One way I see is to use DIG statement and loop it 4 times to get all digits decoded. Maybe there are other, more elegant ways to do this?

[Dave]

It all depends on how the hardware is configured. Is the design optimized for minimal code? With out a schematic it's hard to say...

[CuriousOne]

Well, there is no hardware yet I plan to use PIC16F887. The modules itself have A-B-C-D inputs of CD4543BE connected in paralel, and latch pins are also available on connector.

[CuriousOne]

If you mean hooking up A to PORTC.0, B to PORTC.1, C to PORTC.2 and D to PORTC.3, to be able to directly address them, then yes, I can do that.

[Dave]

Schematic...... Not some wild a** guess... Definitive schematic Please...

[CuriousOne]

Schematic of what?