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authordannye <33dannye@gmail.com>2020-11-04 00:06:44 -0600
committerdannye <33dannye@gmail.com>2020-11-04 00:06:44 -0600
commit5647ca687b92954dcf37a6ea6bfbc9a341c32de4 (patch)
treedde1937a1bfdb3a835f4155e1c2eb8f1aaf86f63 /macros/const.asm
parent53fcd05aa24693093d8af1dc8ec4fedd3957decc (diff)
Sync with pokered
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+; 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