$E767/59239:   Get a char of the error message

Jump from $E73D, $E745:

E767: E6 86     INC $86
E769: D0 02     BNE $E76D       ; increment pointer
E76B: E6 87     INC $87

Jump from $E769, $E775:

E76D: A1 86     LDA ($86,X)     ; get character
E76F: 0A        ASL             ; bit 7 into carry
E770: A1 86     LDA ($86,X)     ; get character
E772: 29 7F     AND #$7F        ; erase bit 7
E774: 60        RTS

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