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Old 28th May 2019, 3:33 pm   #5
Dave Moll
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Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 4,194
Default Re: Fun with 6502 Assembler

In the 6502 instruction set, conditional branches (various Bxx) are always by a displacement of up to 127 bytes, whereas the unconditional jump (JMP) is to a two-byte address (i.e. to anywhere within the 64KB memory space).

The 6809's BRN and LBRN are presumably used in the same manner as the no-operation (NOP) of the 6502.
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