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11 lines
391 B
C
11 lines
391 B
C
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#include "pspmath.h"
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void vfpu_quaternion_multiply(ScePspQuatMatrix *qout, ScePspQuatMatrix *a, ScePspQuatMatrix *b) {
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__asm__ volatile (
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"lv.q C000, %1\n" // load quaternion a
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"lv.q C010, %2\n" // load quaternion b
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"vqmul.q C020, C000, C010\n" // C000 = quat a * quat b (quaternion multiply)
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"sv.q C020, %0\n" // store result
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: "+m"(*qout) : "m"(*a), "m"(*b));
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}
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