/* Overlay manager for SPU.
- Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2006-2016 Free Software Foundation, Inc.
This file is part of the GNU Binutils.
#define rv5 reserved4
#define cgshuf reserved4
#define newovl reserved4
+#define irqtmp1 reserved4
+#define irqtmp2 reserved4
#define reserved5 $79
#define target reserved5
-#define save1 $72
+#define save1 $74
#define rv4 save1
#define rv7 save1
#define tagid save1
#define oldovl save2
#define newvma save2
-#define save3 $74
+#define save3 $72
#define rv1 save3
#define ea64 save3
#define buf3 save3
#define newmap save3
#define oldmask save3
+#define save4 $71
+#define irq_stat save4
.text
.align 4
#nop; lnop
#nop
lqx vma, tab1, off1 # 1,6 8
+#ifdef OVLY_IRQ_SAVE
+ nop
+ stqd save4, -64($sp) # 1,6 9
+#else
#nop; lnop
+#endif
#nop; lnop
#nop; lnop
#nop; lnop
* On entry $75 points to a word consisting of the overlay index in
* the top 14 bits, and the target address in the bottom 18 bits.
*
- * Sets up $lr to return via __ovly_return.
+ * Sets up $lr to return via __ovly_return. If $lr is already set
+ * to return via __ovly_return, don't change it. In that case we
+ * have a tail call from one overlay function to another.
* Updates __ovly_current.
*/
.align 3
or rv7, rv4, rv6 # 0,2 16
lqd save2, -32($sp) # 1,6 16
andi present2, size2, 1 # 0,2 17
+#ifdef OVLY_IRQ_SAVE
+ stqd save4, -64($sp) # 1,6 17
+#else
lnop # 1,0 17
+#endif
selb $lr, rv7, $lr, rv5 # 0,2 18
lqd save1, -16($sp) # 1,6 18
#nop
.type __ovly_load_event, @function
__ovly_load_event:
do_load:
+#ifdef OVLY_IRQ_SAVE
+ ila irqtmp1, do_load10 # 0,2 -5
+ rotqbyi sz, vma, 8 # 1,4 -5
#nop
- rotqbyi sz, vma, 8 # 1,4 0
+ rdch irq_stat, $SPU_RdMachStat # 1,6 -4
#nop
+ bid irqtmp1 # 1,4 -3
+do_load10:
+ nop
+#else
+#nop
+ rotqbyi sz, vma, 8 # 1,4 0
+#endif
rotqbyi osize, vma, 4 # 1,4 1
#nop
lqa ea64, _EAR_ # 1,6 2
#nop; lnop
andc pbit, pbit, zovl # 0,2 74
lqd save2, -32($sp) # 1,6 74
+#ifdef OVLY_IRQ_SAVE
+ ila irqtmp2, do_load90 # 0,2 75
+#lnop
+ andi irq_stat, irq_stat, 1 # 0,2 76
+#lnop
+#else
#nop; lnop
#nop; lnop
+#endif
andc oldvma, oldvma, pbit # 0,2 77
lqd save1, -16($sp) # 1,6 77
-#nop; lnop
- nop
+ nop # 0,0 78
+#lnop
+#nop
stqx oldvma, tab5, off5 # 1,6 79
+#nop
+#ifdef OVLY_IRQ_SAVE
+ binze irq_stat, irqtmp2 # 1,4 80
+do_load90:
+#nop
+ lqd save4, -64($sp) # 1,6 84
+#else
#nop; lnop
+#endif
.global _ovly_debug_event
.type _ovly_debug_event, @function
nop
/* Branch to target address. */
do_load99:
- bi target # 1,4 81
+ bi target # 1,4 81/85
.size __ovly_load, . - __ovly_load