MyPrintf

This is my version of printf written purely in assembly.

Supported specifiers

int x = 45;
MyPrintf("bin = %b\n", x); // 0b101101
MyPrintf("oct = %o\n", x); // 0o55
MyPrintf("dec = %d\n", x); // 45
MyPrintf("hex = %x\n", x); // 0x2d
MyPrintf("ptr = %p\n", &x); // 0x7ffe7c0b35f4
MyPrintf("char = %c\n", '!'); // !
MyPrintf("string = %s\n", "Hi!!!"); // Hi!!!
MyPrintf("bin = %b\n", x); // 0b101101

Usage

Compile your project with the source file and add this line to your cpp file:

extern "C" int MyPrintf(const char* fmt, ...);

On C just exclude "C" part.

Implementation

This printf uses jump table to handle different specifiers.

Fun fact

My printf is 4 times faster than the C one!!!