# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1741494023 28800
# Node ID 6894a25ebfaa0f2d007dc9e561ab0f3ec08b810e
# Parent  e0935d5878c33047097fd87832e75ad2319eb574
Fix mulu nflag when compiling with optimization enabled

diff -r e0935d5878c3 -r 6894a25ebfaa cpu_dsl.py
--- a/cpu_dsl.py	Sat Mar 08 19:57:23 2025 -0800
+++ b/cpu_dsl.py	Sat Mar 08 20:20:23 2025 -0800
@@ -883,7 +883,9 @@
 	if p1Size >= size:
 		p1Size = size // 2
 	#TODO: Handle case in which destSize > size
-	return f'\n\t{params[2]} = ((uint{p0Size}_t){params[0]}) * ((uint{p1Size}_t){params[1]});'
+	p0Mask = (1 << p0Size) - 1
+	p1Mask = (1 << p1Size) - 1
+	return f'\n\t{params[2]} = ((uint{size}_t)({params[0]} & {p0Mask})) * ((uint{size}_t)({params[1]} & {p1Mask}));'
 	
 def _getCarryCheck(prog):
 	carryFlag = None