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Diffstat (limited to 'macros/const.asm')
| -rw-r--r-- | macros/const.asm | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/macros/const.asm b/macros/const.asm new file mode 100644 index 00000000..57380e97 --- /dev/null +++ b/macros/const.asm @@ -0,0 +1,40 @@ +; Enumerate constants + +const_def: MACRO +IF _NARG >= 1 +const_value = \1 +ELSE +const_value = 0 +ENDC +IF _NARG >= 2 +const_inc = \2 +ELSE +const_inc = 1 +ENDC +ENDM + +const: MACRO +\1 EQU const_value +const_value = const_value + const_inc +ENDM + +shift_const: MACRO +\1 EQU (1 << const_value) +const_value = const_value + const_inc +ENDM + +const_skip: MACRO +if _NARG >= 1 +const_value = const_value + const_inc * (\1) +else +const_value = const_value + const_inc +endc +ENDM + +const_next: MACRO +if (const_value > 0 && \1 < const_value) || (const_value < 0 && \1 > const_value) +fail "const_next cannot go backwards from {const_value} to \1" +else +const_value = \1 +endc +ENDM |