Changeset 1984 for trunk/src/emx/include/386/builtin.h

Timestamp:

May 8, 2005, 2:11:22 PM (20 years ago)

Author:

bird

Message:

Ported the BSD SysV Semaphore module.

File:

• trunk/src/emx/include/386/builtin.h (modified) (11 diffs, 1 prop)

trunk/src/emx/include/386/builtin.h

@@ -77 +77 @@
 static __inline__ int __atomic_set_bit(__volatile__ void *pv, unsigned uBit)
 {
-    __asm__ __volatile__("lock btsl %2, %1\n\t"
+    __asm__ __volatile__("lock; btsl %2, %1\n\t"
                          "sbbl %0,%0"
                          : "=r" (uBit),
@@ -95 +95 @@
 static __inline__ void __atomic_clear_bit(__volatile__ void *pv, unsigned uBit)
 {
-    __asm__ __volatile__("lock btrl %1, %0"
+    __asm__ __volatile__("lock; btrl %1, %0"
                          : "=m" (*(__volatile__ unsigned *)pv)
                          : "r" (uBit));
@@ -128 +128 @@
 static __inline__ void __atomic_add(__volatile__ unsigned *pu, const unsigned uAdd)
 {
-    __asm__ __volatile__("lock addl %1, %0"
+    __asm__ __volatile__("lock; addl %1, %0"
                          : "=m" (*pu)
-                         : "nr" (uAdd), 
+                         : "nr" (uAdd),
                            "m"  (*pu));
 }
@@ -142 +142 @@
 static __inline__ void __atomic_sub(__volatile__ unsigned *pu, const unsigned uSub)
 {
-    __asm__ __volatile__("lock subl %1, %0"
+    __asm__ __volatile__("lock; subl %1, %0"
                          : "=m" (*pu)
-                         : "nr" (uSub), 
+                         : "nr" (uSub),
                            "m"  (*pu));
 }
@@ -156 +156 @@
 static __inline__ void __atomic_increment(__volatile__ unsigned *pu)
 {
-    __asm__ __volatile__("lock incl %0"
-                         : "=m" (*pu) 
+    __asm__ __volatile__("lock; incl %0"
+                         : "=m" (*pu)
                          : "m"  (*pu));
 }
 
 /**
+ * Atomically increments a 32-bit unsigned value.
+ *
+ * @param   pu32    Pointer to the value to increment.
+ */
+static __inline__ void __atomic_increment_u32(uint32_t __volatile__ *pu32)
+{
+    __asm__ __volatile__("lock; incl %0"
+                         : "=m" (*pu32)
+                         : "m"  (*pu32));
+}
+
+/**
+ * Atomically increments a 16-bit unsigned value.
+ *
+ * @param   pu16    Pointer to the value to increment.
+ */
+static __inline__ void __atomic_increment_u16(uint16_t __volatile__ *pu16)
+{
+    __asm__ __volatile__("lock; incw %0"
+                         : "=m" (*pu16)
+                         : "m"  (*pu16));
+}
+
+/**
  * Atomically decrements a 32-bit unsigned value.
  *
@@ -168 +192 @@
 static __inline__ void __atomic_decrement(__volatile__ unsigned *pu)
 {
-    __asm__ __volatile__("lock decl %0"
-                         : "=m" (*pu) 
+    __asm__ __volatile__("lock; decl %0"
+                         : "=m" (*pu)
                          : "m"  (*pu));
+}
+
+/**
+ * Atomically decrements a 32-bit unsigned value.
+ *
+ * @param   pu      Pointer to the value to decrement.
+ */
+static __inline__ void __atomic_decrement_u32(__volatile__ uint32_t *pu32)
+{
+    __asm__ __volatile__("lock; decl %0"
+                         : "=m" (*pu32)
+                         : "m"  (*pu32));
+}
+
+/**
+ * Atomically decrements a 16-bit unsigned value.
+ *
+ * @param   pu16    Pointer to the value to decrement.
+ */
+static __inline__ void __atomic_decrement_u16(uint16_t __volatile__ *pu16)
+{
+    __asm__ __volatile__("lock; decw %0"
+                         : "=m" (*pu16)
+                         : "m"  (*pu16));
 }
 
@@ -192 +240 @@
                          "2:\n\t"
                          "incl  %0\n\t"
-                         "lock  cmpxchgl %0, %1\n\t"
+                         "lock; cmpxchgl %0, %1\n\t"
                          "jz    3f\n\t"
                          "jmp   1b\n"
@@ -228 +276 @@
                          "2:\n\t"
                          "incw  %w0\n\t"
-                         "lock  cmpxchgw %w0, %2\n\t"
+                         "lock; cmpxchgw %w0, %2\n\t"
                          "jz    3f\n\t"
                          "jmp   1b\n\t"
@@ -261 +309 @@
                          "2:\n\t"
                          "decl  %0\n\t"
-                         "lock  cmpxchgl %0, %1\n\t"
+                         "lock; cmpxchgl %0, %1\n\t"
                          "jz    3f\n\t"
                          "jmp   1b\n"
@@ -297 +345 @@
                          "2:\n\t"
                          "decw  %%bx\n\t"
-                         "lock  cmpxchgw %w0, %1\n\t"
+                         "lock; cmpxchgw %w0, %1\n\t"
                          "jz    3f\n\t"
                          "jmp   1b\n"
@@ -321 +369 @@
 static inline unsigned __atomic_cmpxchg32(volatile uint32_t *pu32, uint32_t u32New, uint32_t u32Old)
 {
-    __asm__ __volatile__("lock  cmpxchgl %2, %1\n\t"
+    __asm__ __volatile__("lock; cmpxchgl %2, %1\n\t"
                          "setz  %%al\n\t"
                          "movzx %%al, %%eax\n\t"