# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1435436335 25200
# Node ID e1dc98f7ed9fa26e6906aaeaaccb6724eeb95860
# Parent  7306b3967c513fc99bc8d9479355450917e2ea54
Preserve scratch2 when using it as a temporary in memory read functions. This fixes a bunch of issues with the Z80 core and possibly some issues with the 68K core as well

diff -r 7306b3967c51 -r e1dc98f7ed9f backend_x86.c
--- a/backend_x86.c	Sat Jun 27 12:17:18 2015 -0700
+++ b/backend_x86.c	Sat Jun 27 13:18:55 2015 -0700
@@ -171,8 +171,10 @@
 						pop_r(code, opts->scratch1);
 						mov_rrind(code, opts->scratch1, opts->scratch2, tmp_size);
 					} else {
+						push_r(code, opts->scratch2);
 						mov_ir(code, (intptr_t)memmap[chunk].buffer, opts->scratch2, SZ_PTR);
 						mov_rindexr(code, opts->scratch2, opts->scratch1, 1, opts->scratch1, tmp_size);
+						pop_r(code, opts->scratch2);
 					}
 				}
 				if (size != tmp_size && !is_write) {