6502bench/20022-operand-formats_cc65.cfg at 34ba47e71dd6d7e739aa715492c5b68185fbebcc - 6502bench - Applefritter: Git

6502/6502bench

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Andy McFadden b43fd07688 Split 2002x-operand-formats test

My original goal was to add a sign-extended decimal format, but that
turned out to be awkward.  It works for data items and instructions
with immediate operands (e.g. "LDA #-1"), but is either wrong or
useless for address operands, since most assemblers treat integers
as 32-bit values.  (LDA -1 is not LDA $FFFF, it's LDA $FFFFFFFF,
which is not useful unless your asm is doing an implicit mod.)

There's also a bit of variability in how assemblers treat negative
values, so I'm shelving the idea for now.  I'm keeping the updated
tests, which are now split into 6502 / 65816 parts.

Also, updated the formatter to output all decimal values as unsigned.
Most assemblers were fine with negative values, but 64tass .dword
insists on positive.  Rather than make the opcode conditional on the
value's range, we now just always output unsigned decimal, which
all current assemblers accept.

2020-06-08 17:47:26 -07:00

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 # 6502bench SourceGen generated linker script for 20022-operand-formats
 MEMORY {
     MAIN: file=%O, start=%S, size=65536;
 #    MEM000: file=%O, start=$1000, size=62;
 }
 SEGMENTS {
     CODE: load=MAIN, type=rw;
 #    SEG000: load=MEM000, type=rw;
 }
 FEATURES {}
 SYMBOLS {}