day 7

lib.h

@@ -9,14 +9,6 @@
 
 #define STDOUT_FILENO 1
 
-__attribute__((always_inline))
-void *memchr(const void *s, int c, size_t n) {
-    uint64_t dispose;
-    void *d;
-    asm("repnz scasb":"=D"(d),"=c"(dispose):"D"(s),"c"(n),"a"(c):"memory","cc");
-    return d;
-}
-
 static
 void write(uint64_t fileno, void *buffer, size_t len) {
     uint64_t a,d;
@@ -45,6 +37,36 @@ typedef uint64_t bcdint;
 typedef uint64_t num;
 typedef unsigned char ch;
 
+__attribute__((always_inline)) inline
+ch *findc(const ch *s, ch c, size_t n) {
+    uint64_t dispose;
+    void *d;
+    asm("repnz scasb":"=D"(d),"=c"(dispose):"D"(s),"c"(n),"a"(c):"memory","cc");
+    return d;
+}
+
+__attribute__((always_inline)) inline
+num *findnum(const num *s, num c, size_t n) {
+    uint64_t dispose;
+    void *d;
+    asm("repnz scasq":"=D"(d),"=c"(dispose):"D"(s),"c"(n),"a"(c):"memory","cc");
+    return d;
+}
+
+__attribute__((always_inline)) inline
+num *findnotnum(const num *s, num c, size_t n) {
+    uint64_t dispose;
+    void *d;
+    asm("repz scasq":"=D"(d),"=c"(dispose):"D"(s),"c"(n),"a"(c):"memory","cc");
+    return d;
+}
+
+static inline num alignnum(num v, num align) {
+    num extra = v % align;
+    num adjust = (align - extra) % align;
+    return v + adjust;
+}
+
 static
 void printns(size_t len, unsigned char chars[len]) {
     write(STDOUT_FILENO, chars, len);
@@ -72,6 +94,7 @@ void print_many_char(size_t len, char chars[len]) {
 }
 
 #define print(string) print_many_char(sizeof(string)-1, string)
+#define pnl() print("\n")
 
 static
 void printd(unsigned long v) {