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74 lines
1.5 KiB
74 lines
1.5 KiB
#include "wrnum.h"
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#include "libmflcd.h"
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#define uart_tx(x) do { lcd_writedata(x); lcd_waitshort(); } while (0)
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#define uart_writehex32 lcd_writehex32
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uint8_t uart_writehex32(uint32_t val, uint8_t nrdig1, uint8_t flags1)
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{
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char __autodata ch = 0;
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uint8_t __autodata d;
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uint8_t __autodata cnt = 8;
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uint8_t __autodata flags = flags1;
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uint8_t __autodata nrdig = nrdig1;
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if ((flags & WRNUM_SIGNED) && (int32_t)val < 0) {
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val = -val;
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ch = '-';
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} else if ((flags & WRNUM_ZEROPLUS) || ((flags & WRNUM_PLUS) && val)) {
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ch = '+';
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}
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if (ch && nrdig > 0)
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--nrdig;
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if (flags & WRNUM_TSDSEP) {
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if (nrdig > 4)
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--nrdig;
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}
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flags &= WRNUM_MASK;
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if (cnt < nrdig)
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cnt = nrdig;
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do {
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d = val >> (4 * (cnt - 1));
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d &= 0x0F;
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if (d >= 10) {
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if (flags & WRNUM_LCHEX)
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d += 'a' - '9' - 1;
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else
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d += 'A' - '9' - 1;
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}
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if (!d && cnt != 1 && !(flags & WRNUM_DIGCONT)) {
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if (cnt > nrdig)
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continue;
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if (!(flags & WRNUM_PADZERO)) {
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if (!(flags & WRNUM_DIGSET)) {
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nrdig = cnt;
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flags |= WRNUM_DIGSET;
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}
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uart_tx(' ');
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if ((flags & WRNUM_TSDSEP) && (cnt == 5)) {
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uart_tx(' ');
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++nrdig;
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}
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continue;
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}
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}
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if (!(flags & WRNUM_DIGCONT)) {
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if (!(flags & WRNUM_DIGSET))
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nrdig = cnt;
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flags |= WRNUM_PADZERO | WRNUM_DIGCONT | WRNUM_DIGSET;
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if (ch) {
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uart_tx(ch);
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++nrdig;
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}
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}
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uart_tx('0' + d);
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if ((flags & WRNUM_TSDSEP) && (cnt == 5)) {
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uart_tx('\'');
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++nrdig;
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}
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} while (--cnt);
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return nrdig;
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}
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