Changeset 6f8a426 in mainline for arch/ppc32/src

Timestamp:

2006-02-21T00:04:20Z (20 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0fad93a

Parents:

cd92528

Message:

indentation changes
ppc32 fpu context save/restore
ppc32 CPU version
ppc32 memcpy

Location:

arch/ppc32/src

Files:

• asm.S (modified) (1 diff)
• cpu/cpu.c (modified) (2 diffs)
• fpu_context.S (added)

arch/ppc32/src/asm.S

@@ -86 +86 @@
 
 memcpy:
-        # TODO
+        srwi. r7, r5, 3
+        addi r6, r3, -4
+        addi r4, r4, -4
+        beq     2f
+        
+        andi. r0, r6, 3
+        mtctr r7
+        bne 5f
+        
+        1:
+        
+        lwz r7, 4(r4)
+        lwzu r8, 8(r4)
+        stw r7, 4(r6)
+        stwu r8, 8(r6)
+        bdnz 1b
+        
+        andi. r5, r5, 7
+        
+        2:
+        
+        cmplwi 0, r5, 4
+        blt 3f
+        
+        lwzu r0, 4(r4)
+        addi r5, r5, -4
+        stwu r0, 4(r6)
+        
+        3:
+        
+        cmpwi 0, r5, 0
+        beqlr
+        mtctr r5
+        addi r4, r4, 3
+        addi r6, r6, 3
+        
+        4:
+        
+        lbzu r0, 1(r4)
+        stbu r0, 1(r6)
+        bdnz 4b
         blr
+        
+        5:
+        
+        subfic r0, r0, 4
+        mtctr r0
+        
+        6:
+        
+        lbz r7, 4(r4)
+        addi r4, r4, 1
+        stb r7, 4(r6)
+        addi r6, r6, 1
+        bdnz 6b
+        subf r5, r0, r5
+        rlwinm. r7, r5, 32-3, 3, 31
+        beq 2b
+        mtctr r7
+        b 1b

arch/ppc32/src/cpu/cpu.c

@@ -28 +28 @@
 
 #include <arch/cpu.h>
+#include <arch/cpuid.h>
 #include <cpu.h>
 
@@ -41 +42 @@
 void cpu_identify(void)
 {
+        cpu_info_t info;
+        
+        cpu_version(&info);
+        CPU->arch.version = info.version;
+        CPU->arch.revision = info.revision;
 }
 
 void cpu_print_report(cpu_t *m)
 {
-        printf("cpu%d:\n", m->id);
+        printf("cpu%d: version=%d, revision=%d\n", m->id, m->arch.version, m->arch.revision);
 }