fixed a possible deadlock in DrZ80

[picodrive.git] / cpu / DrZ80 / drz80.s

diff --git a/cpu/DrZ80/drz80.s b/cpu/DrZ80/drz80.s
index 53f4c98..16f09af 100644 (file)
--- a/cpu/DrZ80/drz80.s
+++ b/cpu/DrZ80/drz80.s
@@ -6669,11 +6669,14 @@ opcode_DD_NF:
 ;@     mov r0,#0xFD00\r
 ;@     orr r0,r0,r1\r
 ;@     b end_loop\r
+\r
 opcode_DD_NF2:\r
-       mov r0,#0xDD0000\r
-       orr r0,r0,#0xCB00\r
-       orr r0,r0,r1\r
-       b end_loop\r
+       fetch 15\r
+;@ notaz: we don't want to deadlock here\r
+;@     mov r0,#0xDD0000\r
+;@     orr r0,r0,#0xCB00\r
+;@     orr r0,r0,r1\r
+;@     b end_loop\r
 \r
 ;@ADD IX,BC\r
 opcode_DD_09:\r
@@ -8068,8 +8071,8 @@ opcode_ED_BB:
 ;@from the DD location but the address of the IY reg is passed instead\r
 ;@of IX\r
 \r
-end_loop:\r
-     b end_loop\r
+;@end_loop:\r
+;@     b end_loop\r
 \r
 \r
 \r