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66 lines
1.6 KiB
NASM
66 lines
1.6 KiB
NASM
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PUSHS
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SECTION "floating", ROM0
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Known: ; This symbol is known to be a label, but its value is not known yet
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ds 4
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Known2: ; This symbol isn't known either, but the difference is known (4)
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SECTION "fixed", ROM0[42]
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Constant: ; This label's value is known to be 42
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SECTION "fixed 2", ROM0[69]
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Constant2: ; Same as above
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print_diff: MACRO
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PRINTV (\1) - (\2)
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PRINTT "\n"
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PRINTV (\2) - (\1)
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PRINTT "\n"
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ENDM
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POPS ; Ensure we are in neither section
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; TODO: uncomment all that can be, there is seriously room for improvement here
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; Diffing two constants should work
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print_diff Constant, Constant2
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; Diffing two labels in the same SECTION as well
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print_diff Known2, Known
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; Diffing a constant and a "floating" label cannot work
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print_diff Constant, Known
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; Diffing a constant and a ref cannot work
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print_diff Constant, Unknown
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; Diffing a floating label and a ref cannot work
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print_diff Known, Unknown
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; Now let's fiddle with PC
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SECTION "fixed PC", ROM0[420]
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; Diffing a constant and PC should work
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print_diff Constant, @
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; Diffing a floating label and PC cannot work
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print_diff Known, @
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; Diffinf a ref and PC cannot work
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print_diff Unknown, @
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; Diffing PC and PC should work
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print_diff @, @
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; Diffing PC and a label from here should work
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LocalFixed:
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print_diff LocalFixed, @
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SECTION "Floating PC", ROM0
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; Diffing a constant and PC cannot work
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print_diff Constant, @
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; Diffing a floating label and PC cannot work
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print_diff Known, @
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; Diffinf a ref and PC cannot work
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print_diff Unknown, @
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; Diffing PC and PC should work
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print_diff @, @
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; Diffing PC and a label from here should work
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LocalFloating:
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print_diff LocalFloating, @
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