Imported pristine psxsdk-20190410 from official repo

1 files changed, 106 insertions, 0 deletions

diff --git a/libpsx/src/libc/misc.c b/libpsx/src/libc/misc.c
new file mode 100644
index 0000000..f3a1326
--- /dev/null
+++ b/libpsx/src/libc/misc.c
@@ -0,0 +1,106 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+static unsigned int rand_seed = 0;
+static unsigned int rand_next = 0;
+
+int abs(int x)
+{
+	if(x<0)return -x;
+
+	return x;
+}
+
+void srand(unsigned int seed)
+{
+	rand_seed = seed;
+}
+
+int rand()
+{
+	rand_next = (rand_next ^ 0x98765432)*0x1357;
+	
+	return rand_next % RAND_MAX;
+}
+
+static char *__ulltoa_internal__(unsigned long long value, char *str, int base, int minus_sign,
+	unsigned long long maxp )
+{
+	unsigned long long p;
+	unsigned long long p3;
+	int c;
+	int a;
+	
+	p = 1;
+	
+	do
+	{
+		p3 = p;
+		p *= base;
+		
+		if(maxp && p > maxp)
+			break;
+	}while((p >= p3) && !(p % p3));
+	
+	if(minus_sign)
+		*(str++) = '-';
+	
+	for(a = 0;p3 > 0;p3/=base)
+	{
+		c = value / p3;
+		value %= p3;
+		
+		if(c)
+			a = 1;
+		
+		if(a)
+		{
+			if(c <= 9)
+				c += '0';
+			else
+				c = (c - 10) + 'A';
+			
+			*(str++) = c;
+		}
+	}
+	
+	*str = '\0';
+	
+	return str;
+}
+
+char *ulltoa(unsigned long long value, char *str, int base)
+{
+	return __ulltoa_internal__(value, str, base, 0, 0);
+}
+
+char *ultoa(unsigned long value, char *str, int base)
+{
+	return __ulltoa_internal__(value, str, base, 0, (sizeof(long)==8)?0:0xFFFFFFFF);
+}
+
+char *utoa(unsigned int value, char *str, int base)
+{
+	return __ulltoa_internal__(value, str, base, 0, 0xFFFFFFFF);
+}
+
+char *lltoa(long long value, char *str, int base)
+{
+	return __ulltoa_internal__((value<0)?-value:value, str, base, value<0, 0);
+}
+	
+char *ltoa(long value, char *str, int base)
+{
+	return __ulltoa_internal__((value<0)?-value:value, str, base, value<0, (sizeof(long)==8)?0:0xFFFFFFFF);
+}
+
+char *itoa(int value, char *str, int base)
+{
+	return __ulltoa_internal__((value<0)?-value:value, str, base, value<0, 0xFFFFFFFF);
+}
+
+void abort(void)
+{
+	printf("abort(): Abnormal program termination\n");
+	exit(1);
+}