diff options
Diffstat (limited to 'include/asm.s')
| -rw-r--r-- | include/asm.s | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm.s b/include/asm.s index 67b195c..09229f9 100644 --- a/include/asm.s +++ b/include/asm.s @@ -20,3 +20,13 @@ .macro JAL ADDR jmp ADDR .endmacro + +;; Pseudo-instruction from 'nasm' that is not available for 'ca65'. An empty +;; implementation is actually quite accurate, as it's just a way for 'nasm' to +;; perform extra checks when programmers want to explicitly make the code fall +;; through. +.ifndef __NASM__ + .macro __fallthrough__ arg + ;; Nothing to do. + .endmacro +.endif |