Reworked score/cpu/i960 so it can be safely compiled multilib. All

routines and structures that require CPU model specific information
are now in libcpu.  This required significant rework of the
score/cpu header files and the creation of multiple header files
and subdirectories in libcpu/i960.

1 files changed, 37 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/i960/shared/soft_reset_asm.S b/c/src/lib/libcpu/i960/shared/soft_reset_asm.S
new file mode 100644
index 0000000000..c178aa74bd
--- /dev/null
+++ b/c/src/lib/libcpu/i960/shared/soft_reset_asm.S
@@ -0,0 +1,37 @@
+/*
+ *  void __i960_soft_reset_asm
+ *  
+ *  Flush the register cache and save the important (fp, pfp, sp) registers,
+ *  which are clobbered by the reinit operation. (Not documented, but it
+ *  happens).  
+ *
+ *  This may not be used any longer but it is not being purged completely
+ *  in the move to multilib things.
+ *
+ *  $Id$
+ */
+
+        .data
+        .align 4
+_soft_reset_reg_save:
+        .word  0
+        .word  0
+        .word  0
+        .word  0
+ 
+                .globl __i960_soft_reset_asm
+__i960_soft_reset_asm: 
+                flushreg                                                                # flush register cache                                                                  mov                     fp, r4
+                mov                     pfp, r5
+                mov                     sp, r6
+                stt                     r4, _soft_reset_reg_save    # save fp, pfp, sp
+                lda                     __i960_reset_done, r4
+                ldconst         0x300, r5
+                sysctl          r5, r4, g0                  # reinit: clobbers almost all registers
+__i960_reset_done:
+                ldt             _soft_reset_reg_save, r4    # restore fp, pfp, sp
+                mov                     r4, fp
+                mov                     r5, pfp
+                mov                     r6, sp
+                ret
+