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69 lines
1.8 KiB
69 lines
1.8 KiB
#include "debug.h"
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auto dbg::debug_print_decimal(long long number) -> void
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{
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if (number < 0)
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{
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__outbyte(PORT_NUM, '-');
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number = -number;
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}
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for (auto d = 1000000000000000000; d != 0; d /= 10)
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if ((number / d) != 0)
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__outbyte(PORT_NUM, alphabet[(number / d) % 10]);
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}
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auto dbg::debug_print_hex(u64 number, const bool show_zeros) -> void
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{
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for (auto d = 0x1000000000000000; d != 0; d /= 0x10)
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if (show_zeros || (number / d) != 0)
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__outbyte(PORT_NUM, alphabet[(number / d) % 0x10]);
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}
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auto dbg::print(const char* format, ...) -> void
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{
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va_list args;
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va_start(args, format);
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while (format[0])
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{
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if (format[0] == '%')
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{
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switch (format[1])
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{
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case 'd':
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debug_print_decimal(va_arg(args, int));
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format += 2;
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continue;
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case 'x':
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debug_print_hex(va_arg(args, u32), false);
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format += 2;
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continue;
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case 'l':
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if (format[2] == 'l')
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{
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switch (format[3])
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{
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case 'd':
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debug_print_decimal(va_arg(args, u64));
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format += 4;
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continue;
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case 'x':
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debug_print_hex(va_arg(args, u64), false);
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format += 4;
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continue;
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}
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}
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break;
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case 'p':
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debug_print_hex(va_arg(args, u64), true);
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format += 2;
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continue;
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}
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}
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__outbyte(PORT_NUM, format[0]);
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++format;
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}
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va_end(args);
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} |