rt: oops color clamping bug

[dosdemo] / src / util.h

diff --git a/src/util.h b/src/util.h
index 8a46036..f93efc8 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -1,6 +1,7 @@
 #ifndef UTIL_H_
 #define UTIL_H_
 
+#include <stdlib.h>
 #include "inttypes.h"
 
 #ifdef __GNUC__
@@ -168,14 +169,14 @@ static void INLINE memset16(void *dest, uint16_t val, int count)
        : "%eax", "%ebx", "%ecx", "%edx")
 
 #define debug_break() \
-       asm volatile ("int $3")
+       asm volatile("int $3")
 
 #define halt() \
        asm volatile("hlt")
 #endif
 
 #ifdef _MSC_VER
-void __inline memset16(void *dest, uint16_t val, int count)
+static void __inline memset16(void *dest, uint16_t val, int count)
 {
        __asm {
                cld
@@ -221,6 +222,36 @@ void __inline memset16(void *dest, uint16_t val, int count)
        do { \
                __asm { int 3 } \
        } while(0)
+
+static unsigned int __inline get_cs(void)
+{
+       unsigned int res;
+       __asm {
+               xor eax, eax
+               mov ax, cs
+               mov [res], ax
+       }
+       return res;
+}
 #endif
 
+unsigned int get_cs(void);
+#define get_cpl()      ((int)(get_cs() & 3))
+
+void get_msr(uint32_t msr, uint32_t *low, uint32_t *high);
+void set_msr(uint32_t msr, uint32_t low, uint32_t high);
+
+
+/* Non-failing versions of malloc/calloc/realloc. They never return 0, they call
+ * demo_abort on failure. Use the macros, don't call the *_impl functions.
+ */
+#define malloc_nf(sz)  malloc_nf_impl(sz, __FILE__, __LINE__)
+void *malloc_nf_impl(size_t sz, const char *file, int line);
+#define calloc_nf(n, sz)       calloc_nf_impl(n, sz, __FILE__, __LINE__)
+void *calloc_nf_impl(size_t num, size_t sz, const char *file, int line);
+#define realloc_nf(p, sz)      realloc_nf_impl(p, sz, __FILE__, __LINE__)
+void *realloc_nf_impl(void *p, size_t sz, const char *file, int line);
+
+
+
 #endif /* UTIL_H_ */