59bda52beb
Why? Open Source Qt 5 will stop receiving updates rather sooner than later so it's worth switching to Qt 6 to remain compatible with modern systems. Reviewed-on: http://vub63vv26q6v27xzv2dtcd25xumubshogm67yrpaz2rculqxs7jlfqad.onion/torzu-emu/torzu/pulls/130
37 lines
714 B
C
37 lines
714 B
C
typedef unsigned __int128 tu_int;
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tu_int __udivti3(tu_int a, tu_int b)
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{
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if (b == 0) {
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// Handle division by zero (could also trigger a fault)
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return 0;
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}
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if (b > a) {
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return 0;
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}
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int shift;
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for (shift = 0;; shift++) {
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if (shift >= 128) {
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break;
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}
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tu_int shifted_b = b << shift;
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if (shifted_b > a || (shifted_b >> shift) != b) {
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break;
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}
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}
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shift--;
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tu_int quotient = 0;
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for (; shift >= 0; shift--) {
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tu_int shifted_b = b << shift;
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if (shifted_b <= a) {
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quotient |= (tu_int) 1 << shift;
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a -= shifted_b;
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}
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}
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return quotient;
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}
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