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88 lines
1.8 KiB
Common Lisp
88 lines
1.8 KiB
Common Lisp
/*
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*
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* H update equations
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*
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*/
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//Define sx, x, dix (and y, z versions of those)
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{{dixyz_source}}
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//Define vectorized fields and pointers (eg. Hx = H + XX)
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{{vec_source}}
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// Wrap indices if necessary
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int ipx, ipy, ipz;
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if ( x == sx - 1 ) {
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ipx = i - (sx - 1) * dix;
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} else {
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ipx = i + dix;
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}
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if ( y == sy - 1 ) {
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ipy = i - (sy - 1) * diy;
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} else {
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ipy = i + diy;
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}
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if ( z == sz - 1 ) {
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ipz = i - (sz - 1) * diz;
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} else {
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ipz = i + diz;
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}
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//Update H components; set them to 0 if PMC is enabled there.
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// Also divide by mu only if requested.
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{% if pmc -%}
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if (pmc[XX + i] != 0) {
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Hx[i] = cdouble_new(0.0, 0.0);
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} else
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{%- endif -%}
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{
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cdouble_t Dzy = cdouble_mul(cdouble_sub(Ez[ipy], Ez[i]), inv_dey[y]);
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cdouble_t Dyz = cdouble_mul(cdouble_sub(Ey[ipz], Ey[i]), inv_dez[z]);
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{%- if mu -%}
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Hx[i] = cdouble_mul(inv_mu[XX + i], cdouble_sub(Dzy, Dyz));
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{%- else -%}
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Hx[i] = cdouble_sub(Dzy, Dyz);
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{%- endif %}
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}
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{% if pmc -%}
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if (pmc[YY + i] != 0) {
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Hy[i] = cdouble_new(0.0, 0.0);
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} else
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{%- endif -%}
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{
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cdouble_t Dxz = cdouble_mul(cdouble_sub(Ex[ipz], Ex[i]), inv_dez[z]);
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cdouble_t Dzx = cdouble_mul(cdouble_sub(Ez[ipx], Ez[i]), inv_dex[x]);
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{%- if mu -%}
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Hy[i] = cdouble_mul(inv_mu[YY + i], cdouble_sub(Dxz, Dzx));
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{%- else -%}
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Hy[i] = cdouble_sub(Dxz, Dzx);
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{%- endif %}
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}
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{% if pmc -%}
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if (pmc[ZZ + i] != 0) {
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Hz[i] = cdouble_new(0.0, 0.0);
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} else
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{%- endif -%}
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{
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cdouble_t Dyx = cdouble_mul(cdouble_sub(Ey[ipx], Ey[i]), inv_dex[x]);
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cdouble_t Dxy = cdouble_mul(cdouble_sub(Ex[ipy], Ex[i]), inv_dey[y]);
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{%- if mu -%}
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Hz[i] = cdouble_mul(inv_mu[ZZ + i], cdouble_sub(Dyx, Dxy));
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{%- else -%}
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Hz[i] = cdouble_sub(Dyx, Dxy);
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{%- endif %}
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}
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/*
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* End H update equations
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*/
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