Changeset 5771

Timestamp:

Jan 21, 2007, 7:31:22 AM (18 years ago)

Author:

Gary Byers

Message:

Don't use save3 in .SPffcall_return_registers (save3 = r11); use save2 (= r13)
instead.

File:

• trunk/ccl/lisp-kernel/x86-spentry64.s (modified) (3 diffs)

trunk/ccl/lisp-kernel/x86-spentry64.s

@@ -4103 +4103 @@
         __(push %save2)
         __(push %save3)
-        __(movq macptr.address(%arg_y),%save3)
+        __(movq macptr.address(%arg_y),%save2)  /* save2 = %r13, non-volatile */
         __(push %fn)
         __(push %ra0)
@@ -4140 +4140 @@
         __(pop %r9)
         __(call *%rax)
-        __(movq %rax,(%save3))
-        __(movq %rdx,8(%save3))
-        __(movsd %xmm0,16(%save3))
-        __(movsd %xmm1,24(%save3))
+        __(movq %rax,(%save2))
+        __(movq %rdx,8(%save2))
+        __(movsd %xmm0,16(%save2))
+        __(movsd %xmm1,24(%save2))
         __(movq %rbp,%rsp)
         __ifdef([DARWIN_GS_HACK])
@@ -4149 +4149 @@
             contains the linear tcr address.  Preserve %rax/%rdx here. */
          __(set_gs_base(%save0))
-         __(movq (%save3),%rax)
-         __(movq 8(%save3),%rdx)
-         __(movsd 16(%save3),%xmm0)
-         __(movsd 24(%save3),%xmm1)
+         __(movq (%save2),%rax)
+         __(movq 8(%save2),%rdx)
+         __(movsd 16(%save2),%xmm0)
+         __(movsd 24(%save2),%xmm1)
         __endif
         __(movq %rsp,%rcontext:tcr.foreign_sp)