Depending on which high-level mode setting is passed, Clang will stop before doing a full link.
A brief digression on the DB and PB registers: During program execution, the effective program address (EPA) seen by other hardware in the system is the 16 bit content in PC catenated with the eight bit content in PB, resulting in a 24 bit address in which PB represents bits 16-23 and PC represents bits 0-15. 65c816 c compiler The ca65 macro assembler supports 6502, 65C02, and 65C816 processors, and can be used standalone without the C compiler.