// #LAYOUT# STD * #TAKE // #LAYOUT# * KERNAL_0 #TAKE // #LAYOUT# * * #IGNORE // // Official Kernal routine, described in: // // - [RG64] C64 Programmers Reference Guide - page 298 // - [CM64] Computes Mapping the Commodore 64 - page 239 // // CPU registers that has to be preserved (see [RG64]): .A, .X, .Y // SETMSG: sta MSGFLG rts