PSR_Z
match = (spsr & PSR_Z) != 0;
match = (spsr & (PSR_C | PSR_Z)) == PSR_C;
match = !(spsr & PSR_Z) && (!(spsr & PSR_N) == !(spsr & PSR_V));
res = (frame->tf_spsr & PSR_Z) != 0;
((frame->tf_spsr & PSR_Z) == 0);
res = ((frame->tf_spsr & PSR_Z) == 0) &&