8f529046a9
I'm a tabs guy. I like tabs, it's an elegant way to represent indentation instead of brute-forcing it. But I have to admit that the world seems to be going towards spaces, and tooling tends not to play nice with tabs. So here we go, changing the whole repo to spaces since I'm getting tired of all the inconsistent formatting.
85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
#pragma once
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#include <stdarg.h>
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#include <stdint.h>
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struct kernel_data;
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class serial_port;
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class console
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{
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public:
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console();
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console(serial_port *serial);
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void set_color(uint8_t fg = 7, uint8_t bg = 0);
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void putc(char c);
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size_t puts(const char *message);
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void vprintf(const char *fmt, va_list args);
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inline void printf(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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vprintf(fmt, args);
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va_end(args);
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}
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template <typename T>
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void put_hex(T x, int width = 0, char pad = ' ');
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template <typename T>
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void put_dec(T x, int width = 0, char pad = ' ');
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void echo();
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static console * get();
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private:
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serial_port *m_serial;
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};
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extern console &g_console;
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inline console * console::get() { return &g_console; }
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extern const char digits[];
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template <typename T>
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void console::put_hex(T x, int width, char pad)
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{
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static const int chars = sizeof(x) * 2;
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char message[chars + 1];
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int len = 1;
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for (int i = chars - 1; i >= 0; --i) {
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uint8_t nibble = (x >> (i*4)) & 0xf;
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if (nibble) len = len > i + 1 ? len : i + 1;
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message[chars - i - 1] = digits[nibble];
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}
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message[chars] = 0;
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if (width > len) for(int i=0; i<(width-len); ++i) putc(pad);
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puts(message + (chars - len));
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if (-width > len) for(int i=0; i<(-width-len); ++i) putc(' ');
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}
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template <typename T>
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void console::put_dec(T x, int width, char pad)
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{
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static const int chars = sizeof(x) * 3;
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char message[chars + 1];
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char *p = message + chars;
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int length = 0;
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*p-- = 0;
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do {
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*p-- = digits[x % 10];
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x /= 10;
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length += 1;
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} while (x != 0);
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if (width > length) for(int i=0; i<(width-length); ++i) putc(pad);
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puts(++p);
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if (-width > length) for(int i=0; i<(-width-length); ++i) putc(' ');
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}
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