Changeset 5c491aef in rtems for c/src/exec/score/cpu/powerpc/cpu_asm.s

Timestamp:

Dec 20, 1995, 3:39:19 PM (25 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

c64e4ed4

Parents:

4442d21c

Message:

changes remerged after lost in disk crash -- recovered from snapshot, partially recovered working tree, etc

File:

• c/src/exec/score/cpu/powerpc/cpu_asm.s (modified) (5 diffs)

c/src/exec/score/cpu/powerpc/cpu_asm.s

@@ -1 @@
-/*  cpu_asm.s   1.0 - 95/08/08
+
+/*  cpu_asm.s   1.1 - 95/12/04
  *
  *  This file contains the assembly code for the PowerPC implementation
  *  of RTEMS.
  *
- *  Author:     Andrew Bray <andy@i-cubed.demon.co.uk>
+ *  Author:     Andrew Bray <andy@i-cubed.co.uk>
  *
  *  COPYRIGHT (c) 1995 by i-cubed ltd.
@@ -672 +673 @@
 
 /*  Individual interrupt prologues look like this:
- *      mtsprg{0,1} r0
- *      mfsprg2 r0
- *      mtmsr   r0
  * #if (PPC_ABI == PPC_ABI_POWEROPEN || PPC_ABI == PPC_ABI_GCC27)
  * #if (PPC_HAS_FPU)
@@ -684 +682 @@
  *      stwu    r1, -(IP_END)(r1)
  * #endif
- *      mfsprg{0,1} r0
  *      stw     r0, IP_0(r1)
  *
@@ -701 +698 @@
 PROC (_ISR_Handler):
 #define LABEL(x)        x
-#define MTSAVE(x)       mtsprg0 x
-#define MFSAVE(x)       mfsprg0 x
+#define MTSAVE(x)       mtspr   sprg0, x
+#define MFSAVE(x)       mfspr   x, sprg0
+#define MTPC(x)         mtspr   srr0, x
+#define MFPC(x)         mfspr   x, srr0
+#define MTMSR(x)        mtspr   srr1, x
+#define MFMSR(x)        mfspr   x, srr1
         #include        "irq_stub.s"
         rfi
@@ -719 +720 @@
 #undef  MTSAVE
 #undef  MFSAVE
+#undef  MTPC
+#undef  MFPC
+#undef  MTMSR
+#undef  MFMSR
 #define LABEL(x)        x##_C
-#define MTSAVE(x)       mtsprg1 x
-#define MFSAVE(x)       mfsprg1 x
+#define MTSAVE(x)       mtspr   sprg1, x
+#define MFSAVE(x)       mfspr   x, sprg1
+#define MTPC(x)         mtspr   srr2, x
+#define MFPC(x)         mfspr   x, srr2
+#define MTMSR(x)        mtspr   srr3, x
+#define MFMSR(x)        mfspr   x, srr3
         #include        "irq_stub.s"
         rfci