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- :name:fe:r->X:r->Y:r->Z:r->T:t0:t1:t2:t3:t4:t5:p->X:p->Y:p->Z:p->T:q->YplusX:q->YminusX:q->Z:q->T2d:
- fe r:var/r=fe:
- enter f:enter/f:>X1=fe#11:>Y1=fe#12:>Z1=fe#13:>T1=fe#14:>YpX2=fe#15:>YmX2=fe#16:>Z2=fe#17:>T2d2=fe#18:
- return:nofallthrough:<X3=fe#1:<Y3=fe#2:<Z3=fe#3:<T3=fe#4:leave:
- h=f+g:<f=fe:<g=fe:>h=fe:asm/fe_add(>h,<f,<g);:
- h=f-g:<f=fe:<g=fe:>h=fe:asm/fe_sub(>h,<f,<g);:
- h=f*g:<f=fe:<g=fe:>h=fe:asm/fe_mul(>h,<f,<g);:
- h=f^2:<f=fe:>h=fe:asm/fe_sq(>h,<f);:
- h=2*g:<g=fe:>h=fe:asm/fe_add(>h,<g,<g);:
- :
- enter ge_sub
- fe X1
- fe Y1
- fe Z1
- fe Z2
- fe T1
- fe ZZ
- fe YpX2
- fe YmX2
- fe T2d2
- fe X3
- fe Y3
- fe Z3
- fe T3
- fe YpX1
- fe YmX1
- fe A
- fe B
- fe C
- fe D
- YpX1 = Y1+X1
- YmX1 = Y1-X1
- A = YpX1*YmX2
- B = YmX1*YpX2
- C = T2d2*T1
- ZZ = Z1*Z2
- D = 2*ZZ
- X3 = A-B
- Y3 = A+B
- Z3 = D-C
- T3 = D+C
- return
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