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-rw-r--r--src/mame/machine/slikshot.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/machine/slikshot.cpp b/src/mame/machine/slikshot.cpp
index 1c2ad7ac8cd..3592b1696e3 100644
--- a/src/mame/machine/slikshot.cpp
+++ b/src/mame/machine/slikshot.cpp
@@ -261,8 +261,8 @@ void itech8_state::vels_to_inters(UINT8 x, UINT8 vx, UINT8 vy,
/* inter2 can be derived from Vx and Vy */
_27d8 = ((UINT64)vy * 0xfbd3) >> 16;
- *inter2 = 0x30f2e / (_27d8 + ((abs((INT8)vx) << 16) / 0x58f8c));
- inter2a = 0x30f2e / (_27d8 - ((abs((INT8)vx) << 16) / 0x58f8c));
+ *inter2 = 0x30f2e / (_27d8 + (((UINT32)abs((INT8)vx) << 16) / 0x58f8c));
+ inter2a = 0x30f2e / (_27d8 - (((UINT32)abs((INT8)vx) << 16) / 0x58f8c));
/* compute it back both ways and pick the closer */
inters_to_vels(*inter1, *inter2, 0, 0, &x1, &vx1, &vy1);