ARM: jrevdct_arm: use push/pop mnemonics

Use push/pop instead of stmdb/ldmia for stack operations.  This
is the preferred syntax.
Signed-off-by: Mans Rullgard <mans@mansr.com>

libavcodec/arm/jrevdct_arm.S

@@ -56,7 +56,7 @@
 #define FIX_0xFFFF_ID          48
 
 function ff_j_rev_dct_arm, export=1
-        stmdb   sp!, { r4 - r12, lr }   @ all callee saved regs
+        push {r4 - r12, lr}
         sub sp, sp, #4                  @ reserve some space on the stack
         str r0, [ sp ]                  @ save the DCT pointer to the stack
 
@@ -99,7 +99,7 @@ row_loop:
         add r4, r6, r3, lsl #13             @ r4 = tmp11
         rsb r3, r6, r3, lsl #13             @ r3 = tmp12
 
-        stmdb   sp!, { r0, r2, r3, r4 } @ save on the stack tmp10, tmp13, tmp12, tmp11
+        push {r0, r2, r3, r4} @ save on the stack tmp10, tmp13, tmp12, tmp11
 
         ldrsh r3, [lr, #10]             @ r3 = 'd3'
         ldrsh r5, [lr, #12]             @ r5 = 'd5'
@@ -133,8 +133,8 @@ row_loop:
         add r3, r3, r4                  @ r3 = tmp2
         add r1, r1, r6                  @ r1 = tmp3
 
-        ldmia sp!, { r0, r2, r4, r6 } @ r0 = tmp10 / r2 = tmp13 / r4 = tmp12 / r6 = tmp11
-                                      @ r1 = tmp3  / r3 = tmp2  / r5 = tmp1  / r7 = tmp0
+        pop {r0, r2, r4, r6} @ r0 = tmp10 / r2 = tmp13 / r4 = tmp12 / r6 = tmp11
+                             @ r1 = tmp3  / r3 = tmp2  / r5 = tmp1  / r7 = tmp0
 
         @ Compute DESCALE(tmp10 + tmp3, CONST_BITS-PASS1_BITS)
         add r8, r0, r1
@@ -242,7 +242,7 @@ column_loop:
         orrs r10, r9, r10
         beq empty_odd_column
 
-        stmdb   sp!, { r0, r2, r4, r6 } @ save on the stack tmp10, tmp13, tmp12, tmp11
+        push {r0, r2, r4, r6} @ save on the stack tmp10, tmp13, tmp12, tmp11
 
         add r0, r3, r5                  @ r0 = 'z2'
         add r2, r1, r7                  @ r2 = 'z1'
@@ -272,8 +272,8 @@ column_loop:
         add r3, r3, r4                  @ r3 = tmp2
         add r1, r1, r6                  @ r1 = tmp3
 
-        ldmia sp!, { r0, r2, r4, r6 } @ r0 = tmp10 / r2 = tmp13 / r4 = tmp11 / r6 = tmp12
-                                      @ r1 = tmp3  / r3 = tmp2  / r5 = tmp1  / r7 = tmp0
+        pop {r0, r2, r4, r6} @ r0 = tmp10 / r2 = tmp13 / r4 = tmp11 / r6 = tmp12
+                             @ r1 = tmp3  / r3 = tmp2  / r5 = tmp1  / r7 = tmp0
 
         @ Compute DESCALE(tmp10 + tmp3, CONST_BITS+PASS1_BITS+3)
         add r8, r0, r1
@@ -366,7 +366,7 @@ empty_odd_column:
 the_end:
         @ The end....
         add sp, sp, #4
-        ldmia   sp!, { r4 - r12, pc }   @ restore callee saved regs and return
+        pop {r4 - r12, pc}
 endfunc
 
 const const_array