; Monitor helper code - syntax checking Syntax_Byte_AC: ; ensure AC contains a 1-byte value php pha ; XXX improve this - check for numeric system and Dig_Cnt, will require Got_Addr_To_LAC rework lda Long_AC+1 ora Long_AC+2 ora Long_AC+3 +bne Mon_Error ; value above $FF pla plp rts ; XXX add routine to check if this was last character