Changeset 407 for trunk/hal/tsar_mips32/core/hal_special.c

Timestamp:

Nov 7, 2017, 3:08:12 PM (6 years ago)

Author:

alain

Message:

First implementation of fork/exec.

File:

• trunk/hal/tsar_mips32/core/hal_special.c (modified) (4 diffs)

trunk/hal/tsar_mips32/core/hal_special.c

@@ -31 +31 @@
 
 struct thread_s;
-
-/////////////////////////////////
-void hal_set_ebase( reg_t  base )
-{ 
-        asm volatile ("mtc0    %0,  $15,  1" : : "r" (base));
-}
 
 //////////////////////////
@@ -200 +194 @@
 void hal_fence()
 {
-        asm volatile
-        ( "sync    \n":: );
+        asm volatile ("sync");
 }
 
@@ -213 +206 @@
 void hal_core_sleep()
 {
-        asm volatile
-        ("wait   \n"::);
+        asm volatile ("wait");
 }
 
@@ -221 +213 @@
 { 
     asm volatile
-    ( "1:                    \n"
+    ( ".set noreorder        \n"
       "or    $27,  %0,  $0   \n"
+      "1:                    \n"
       "addi  $27, $27,  -1   \n"
+      "nop                   \n"
       "bne   $27,  $0,  1b   \n"
       "nop                   \n"
-      : : "r" (delay) : "$27" );
+      ".set reorder          \n"
+      : : "r" (delay>>2) : "$27" );
 }