X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Finterrupt.h;h=99abf8e3a92ddecff94064dd7bbaf5f0086e774d;hb=601d95be13aa18bfdea51930f86cccdde1c01f5e;hp=adb7fa99b4a424e116914551c4edb0f3d2d30d20;hpb=2c5bb7cae7970d66a988c5d8b096352b314a9c8e;p=pintos-anon

diff --git a/src/threads/interrupt.h b/src/threads/interrupt.h
index adb7fa9..99abf8e 100644
--- a/src/threads/interrupt.h
+++ b/src/threads/interrupt.h
@@ -29,6 +29,8 @@ struct intr_frame
     uint32_t edx;               /* Saved EDX. */
     uint32_t ecx;               /* Saved ECX. */
     uint32_t eax;               /* Saved EAX. */
+    uint16_t gs, :16;           /* Saved GS segment register. */
+    uint16_t fs, :16;           /* Saved FS segment register. */
     uint16_t es, :16;           /* Saved ES segment register. */
     uint16_t ds, :16;           /* Saved DS segment register. */
 
@@ -41,7 +43,7 @@ struct intr_frame
 
     /* Pushed by the CPU.
        These are the interrupted task's saved registers. */
-    void (*eip) (void);         /* Current or next instruction. */
+    void (*eip) (void);         /* Next instruction to execute. */
     uint16_t cs, :16;           /* Code segment for eip. */
     uint32_t eflags;            /* Saved CPU flags. */
     void *esp;                  /* Saved stack pointer. */