Hi Guys
I would like to know when I use this piece of code:

always @(c40 or d0b or c42 or d1b or c44 or d2b or c46 or d3b or pwrFault)  q_latchp = #tdelay (!pwrFault) ? ~((c40 && d0b) || (c42 && d1b) || (c44 && d2b) || (c46 && d3b)):1'bx;

always @(c40 or d0n or c42 or d1n or c44 or d2n or c46 or d3n or pwrFault)  q_latchn = #tdelay (!pwrFault) ? ~((c40 && d0n) || (c42 && d1n) || (c44 && d2n) || (c46 && d3n)):1'bx;




to model a CSVL kind of mux,I have  the wrong datas but when  I do no blocking code:

always @(c40 or d0b or c42 or d1b or c44 or d2b or c46 or d3b or pwrFault)  q_latchp <= #tdelay (!pwrFault) ? ~((c40 && d0b) || (c42 && d1b) || (c44 && d2b) || (c46 && d3b)):1'bx;

always @(c40 or d0n or c42 or d1n or c44 or d2n or c46 or d3n or pwrFault)  q_latchn <= #tdelay (!pwrFault) ? ~((c40 && d0n) || (c42 && d1n) || (c44 && d2n) || (c46 && d3n)):1'bx;

I have correct outputs
Can someone explain me the differences and where the issue comes from.

Thank you very much
idris