I would like to print a constant 128 bit hex number in e

I would like to print a constant from RTL design (128 bit) hex number in e language.

I tried this statement:

message(LOW, "GENERICS CONFIGURATION  - IMPLEMENTED_REG_BITS  = ", hex(IMPLEMENTED_REG_BIT)S,"\n");

but in the console it prints :

**[0 ps] sys-@197: GENERICS CONFIGURATION  - IMPLEMENTED_REG_BITS  = 0xffffffff

It should print:

**[0 ps] sys-@197: GENERICS CONFIGURATION  - IMPLEMENTED_REG_BITS  = 0xffffffffffffffffffffffffffffffff

Could you please help me on this?

best regards