# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1604266111 28800
# Node ID dcdad92f84a4e81b0dabc6583f2228bfca4cf473
# Parent  b05295c2ad04d79aacfdb177ccd5891be6f62a88
Multiplying by zero and shifting by zero are very different. Fixes regression in Overdrive 2

diff -r b05295c2ad04 -r dcdad92f84a4 vdp.c
--- a/vdp.c	Sun Nov 01 12:35:58 2020 -0800
+++ b/vdp.c	Sun Nov 01 13:28:31 2020 -0800
@@ -1160,7 +1160,7 @@
 	vscroll >>= vscroll_shift;
 	//TODO: Verify the behavior for a setting of 2
 	static const uint16_t hscroll_masks[] = {0x1F, 0x3F, 0x1F, 0x7F};
-	static const uint16_t v_shifts[] = {6, 7, 0, 8};
+	static const uint16_t v_shifts[] = {6, 7, 16, 8};
 	uint16_t hscroll_mask = hscroll_masks[context->regs[REG_SCROLL] & 0x3];
 	uint16_t v_shift = v_shifts[context->regs[REG_SCROLL] & 0x3];
 	uint16_t hscroll, offset;