#include "bregs.h" // struct bregs
#include "config.h" // BUILD_STACK_ADDR
+void
+cpuid(u32 index, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+{
+ // Check for cpu id
+ u32 origflags = save_flags();
+ restore_flags(origflags ^ F_ID);
+ u32 newflags = save_flags();
+ restore_flags(origflags);
+
+ if (((origflags ^ newflags) & F_ID) != F_ID)
+ // no cpuid
+ *eax = *ebx = *ecx = *edx = 0;
+ else
+ __cpuid(index, eax, ebx, ecx, edx);
+}
+
/****************************************************************
* 16bit calls
return dest;
}
+// locate first occurance of character c in the string s
+char *
+strchr(const char *s, int c)
+{
+ for (; *s; s++)
+ if (*s == c)
+ return (char*)s;
+ return NULL;
+}
+
+// Remove any trailing blank characters (spaces, new lines, carriage returns)
+void
+nullTrailingSpace(char *buf)
+{
+ int len = strlen(buf);
+ char *end = &buf[len-1];
+ while (end >= buf && *end <= ' ')
+ *(end--) = '\0';
+}
/****************************************************************
* Keyboard calls