X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fassembly%2Fx86%2Farith.lisp;h=54f94890a1fe3a57515b99157b581050d74d4a1e;hb=95591ed483dbb8c0846c129953acac1554f28809;hp=f3081f82456079e53c2394b1126fe2ec5354b536;hpb=d95f1e6476aa63695e018a7769a1ae9e002fca36;p=sbcl.git

diff --git a/src/assembly/x86/arith.lisp b/src/assembly/x86/arith.lisp
index f3081f8..54f9489 100644
--- a/src/assembly/x86/arith.lisp
+++ b/src/assembly/x86/arith.lisp
@@ -40,13 +40,12 @@
                 (inst ret)
 
                 DO-STATIC-FUN
-                (inst pop eax)
+                ;; Same as: (inst enter (fixnumize 1))
                 (inst push ebp-tn)
-                (inst lea
-                      ebp-tn
-                      (make-ea :dword :base esp-tn :disp n-word-bytes))
-                (inst sub esp-tn (fixnumize 2))
-                (inst push eax)  ; callers return addr
+                (inst mov ebp-tn esp-tn)
+                (inst sub esp-tn (fixnumize 1))
+                (inst push (make-ea :dword :base ebp-tn
+                            :disp (frame-byte-offset return-pc-save-offset)))
                 (inst mov ecx (fixnumize 2)) ; arg count
                 (inst jmp
                       (make-ea :dword
@@ -86,7 +85,7 @@
     (move eax x)                          ; must use eax for 64-bit result
     (inst sar eax n-fixnum-tag-bits)      ; remove *4 fixnum bias
     (inst imul y)                         ; result in edx:eax
-    (inst jmp :no okay)                   ; still fixnum
+    (inst jmp :no OKAY)                   ; still fixnum
 
     ;; zzz jrd changed edx to ebx in here, as edx isn't listed as a temp, above
     ;;     pfw says that loses big -- edx is target for arg x and result res
@@ -130,11 +129,11 @@
   (inst test x fixnum-tag-mask)
   (inst jmp :z FIXNUM)
 
-  (inst pop eax)
   (inst push ebp-tn)
-  (inst lea ebp-tn (make-ea :dword :base esp-tn :disp n-word-bytes))
-  (inst sub esp-tn (fixnumize 2))
-  (inst push eax)
+  (inst mov ebp-tn esp-tn)
+  (inst sub esp-tn (fixnumize 1))
+  (inst push (make-ea :dword :base ebp-tn
+                      :disp (frame-byte-offset return-pc-save-offset)))
   (inst mov ecx (fixnumize 1))    ; arg count
   (inst jmp (make-ea :dword
                      :disp (+ nil-value (static-fun-offset '%negate))))
@@ -171,12 +170,18 @@
                 (inst ret)
 
                 DO-STATIC-FUN
-                (move ecx esp-tn)
                 (inst sub esp-tn (fixnumize 3))
-                (inst mov (make-ea :dword
-                                   :base ecx :disp (fixnumize -1))
+                (inst mov (make-ea :dword :base esp-tn
+                                   :disp (frame-byte-offset
+                                          (+ sp->fp-offset
+                                             -3
+                                             ocfp-save-offset)))
                       ebp-tn)
-                (move ebp-tn ecx)
+                (inst lea ebp-tn (make-ea :dword :base esp-tn
+                                          :disp (frame-byte-offset
+                                          (+ sp->fp-offset
+                                             -3
+                                             ocfp-save-offset))))
                 (inst mov ecx (fixnumize 2))
                 (inst call (make-ea :dword
                                     :disp (+ nil-value
@@ -189,7 +194,7 @@
                     (:g `((inst cmp x (1+ nil-value)))))
                 (inst ret))
              #-sb-assembling
-                          `(define-vop (,name)
+             `(define-vop (,name)
                 (:translate ,translate)
                 (:policy :safe)
                 (:save-p t)
@@ -230,7 +235,7 @@
   (inst cmp ecx other-pointer-lowtag)
   (inst jmp :e DO-STATIC-FUN)
 
-  ;; Not both other pointers
+  ;; At least one fixnum
   (inst cmp x y)
   RET
   (inst ret)
@@ -240,13 +245,18 @@
   (inst cmp x y)
   (inst jmp :e RET)
 
-  (move ecx esp-tn)
   (inst sub esp-tn (fixnumize 3))
-  (inst mov (make-ea :dword
-                     :base ecx
-                     :disp (fixnumize -1))
+  (inst mov (make-ea :dword :base esp-tn
+                     :disp (frame-byte-offset
+                            (+ sp->fp-offset
+                               -3
+                               ocfp-save-offset)))
         ebp-tn)
-  (move ebp-tn ecx)
+  (inst lea ebp-tn (make-ea :dword :base esp-tn
+                            :disp (frame-byte-offset
+                                   (+ sp->fp-offset
+                                      -3
+                                      ocfp-save-offset))))
   (inst mov ecx (fixnumize 2))
   (inst call (make-ea :dword
                       :disp (+ nil-value (static-fun-offset 'eql))))
@@ -297,13 +307,18 @@
   (inst ret)
 
   DO-STATIC-FUN
-  (move ecx esp-tn)
   (inst sub esp-tn (fixnumize 3))
-  (inst mov (make-ea :dword
-                     :base ecx
-                     :disp (fixnumize -1))
+  (inst mov (make-ea :dword :base esp-tn
+                     :disp (frame-byte-offset
+                            (+ sp->fp-offset
+                               -3
+                               ocfp-save-offset)))
         ebp-tn)
-  (move ebp-tn ecx)
+  (inst lea ebp-tn (make-ea :dword :base esp-tn
+                            :disp (frame-byte-offset
+                                   (+ sp->fp-offset
+                                      -3
+                                      ocfp-save-offset))))
   (inst mov ecx (fixnumize 2))
   (inst call (make-ea :dword
                       :disp (+ nil-value (static-fun-offset 'two-arg-=))))