more component for port

2026-05-29 21:27:35 +08:00
parent 345be1983b
commit d57a09872d
6 changed files with 412 additions and 0 deletions
@@ -0,0 +1,25 @@
+#include <os_loopdelay.h>
+
+#if defined   (__CC_ARM) /*!< ARM Compiler */
+__asm void os_loop_delay(unsigned long ulCount)
+{
+    subs    r0, #1;
+    bne     os_loop_delay;
+    bx      lr;
+}
+#elif defined ( __ICCARM__ ) /*!< IAR Compiler */
+void os_loop_delay(unsigned long ulCount)
+{
+    __asm(" subs    r0, #1          \n"
+       "    bne.n   os_loop_delay   \n"
+       "    bx      lr");
+}
+
+#elif defined (__GNUC__) /*!< GNU Compiler */
+__attribute__((naked))
+void os_loop_delay(unsigned long ulCount){
+    __asm("    subs    r0, #1           \n"
+          "    bne     os_loop_delay    \n"
+          "    bx      lr");
+}
+#endif /* __CC_ARM */