ref: 850c78aaf47a167e64a01aa1dc07bbe558a7c282
dir: /test/asm/label-diff.asm/
PUSHS SECTION "floating", ROM0 Known: ; This symbol is known to be a label, but its value is not known yet ds 4 Known2: ; This symbol isn't known either, but the difference is known (4) SECTION "fixed", ROM0[42] Constant: ; This label's value is known to be 42 SECTION "fixed 2", ROM0[69] Constant2: ; Same as above print_diff: MACRO PRINTLN (\1) - (\2) PRINTLN (\2) - (\1) ENDM POPS ; Ensure we are in neither section ; TODO: uncomment all that can be, there is seriously room for improvement here ; Diffing two constants should work print_diff Constant, Constant2 ; Diffing two labels in the same SECTION as well print_diff Known2, Known ; Diffing a constant and a "floating" label cannot work print_diff Constant, Known ; Diffing a constant and a ref cannot work print_diff Constant, Unknown ; Diffing a floating label and a ref cannot work print_diff Known, Unknown ; Diffing two refs cannot work print_diff Unknown, Unknown2 ; Now let's fiddle with PC SECTION "fixed PC", ROM0[420] ; Diffing a constant and PC should work print_diff Constant, @ ; Diffing a floating label and PC cannot work print_diff Known, @ ; Diffinf a ref and PC cannot work print_diff Unknown, @ ; Diffing PC and PC should work print_diff @, @ ; Diffing PC and a label from here should work LocalFixed: print_diff LocalFixed, @ ds 69 print_diff LocalFixed, @ SECTION "Floating PC", ROM0 ; Diffing a constant and PC cannot work print_diff Constant, @ ; Diffing a floating label and PC cannot work print_diff Known, @ ; Diffinf a ref and PC cannot work print_diff Unknown, @ ; Diffing PC and PC should work print_diff @, @ ; Diffing PC and a label from here should work LocalFloating: print_diff LocalFloating, @ ds 42 print_diff LocalFloating, @