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-rw-r--r--system/alpha/palcode/platform_m5.s4
1 files changed, 2 insertions, 2 deletions
diff --git a/system/alpha/palcode/platform_m5.s b/system/alpha/palcode/platform_m5.s
index 9f73767c9..f457147ea 100644
--- a/system/alpha/palcode/platform_m5.s
+++ b/system/alpha/palcode/platform_m5.s
@@ -799,9 +799,9 @@ sys_int_20:
or r31,3,r16 // a0 means it is a I/O interrupt
bis r31,0x801,r8
- sll r8,4,r8
+ sll r8,16,r8
bis r8,0xa000,r8
- sll r8,4,r8
+ sll r8,16,r8
bis r8,0x80,r8
ldl_p r9, 0(r8) // read the MISC register