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diff m68k.cpu @ 2639:0046305e3fa8

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Fix movep with negative displacement
author Michael Pavone <pavone@retrodev.com>
date Wed, 26 Feb 2025 20:46:00 -0800
parents e8b630a1ea4e
children bde8ec2d0f83
line wrap: on
line diff
--- a/m68k.cpu	Wed Feb 26 20:45:40 2025 -0800
+++ b/m68k.cpu	Wed Feb 26 20:46:00 2025 -0800
@@ -2453,6 +2453,7 @@
 0000DDD10Z001AAA movep_ay_dx
 	local address 32
 	m68k_prefetch
+	sext 32 scratch1 scratch1
 	scratch1 += aregs.A
 	address = scratch1 + 2
 	ocall read_8
@@ -2474,6 +2475,7 @@
 
 0000DDD11Z001AAA movep_dx_ay
 	m68k_prefetch
+	sext 32 scratch1 scratch1
 	scratch2 = scratch1 + aregs.A
 	if Z
 		scratch1 = dregs.D >> 24