115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#include <in/instrs.h>
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#define _NEED_ARCH_I
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#include <ob/arch_i.h>
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//----------------------------------------------------------------------------//
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IMPL_START(or) { *r1 = p2->val | p3->val; return 1; }
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IMPL_START(and) { *r1 = p2->val & p3->val; return 1; }
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IMPL_START(xor) { *r1 = p2->val ^ p3->val; return 1; }
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//----------------------------------------------------------------------------//
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IMPL_START(shl) { *r1 = p2->val << p3->val; return 1; }
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IMPL_START(shr) { *r1 = p2->val >> p3->val; return 1; }
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IMPL_START(sal) { *r1 = (ulong)((long)p2->val << (long)p3->val); return 1; }
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IMPL_START(sar) { *r1 = (ulong)((long)p2->val >> (long)p3->val); return 1; }
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//----------------------------------------------------------------------------//
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IMPL_START(add) { *r1 = p2->val + p3->val; return 1; }
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IMPL_START(addf) { COMPARE_ADD(p2->val, p3->val); *r1 = p2->val + p3->val; return 1; }
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IMPL_START(sub) { *r1 = p2->val - p3->val; return 1; }
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IMPL_START(subf) { COMPARE_SUB(p2->val, p3->val); *r1 = p2->val - p3->val; return 1; }
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IMPL_START(adcx)
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{
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p3->val += !!(R(RFX)&CF);
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COMPARE_ADD(p2->val, p3->val);
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*r1 = p2->val + p3->val;
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return 1;
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}
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IMPL_START(sbbx)
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{
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p3->val += !!(R(RFX)&CF);
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COMPARE_SUB(p2->val, p3->val);
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*r1 = p2->val - p3->val;
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return 1;
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}
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//----------------------------------------------------------------------------//
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IMPL_START(mul) { *r1 = p2->val * p3->val; return 1; }
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IMPL_START(rem) { *r1 = p2->val % p3->val; return 1; }
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IMPL_START(div)
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{
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if (!p3->val)
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_except(ctx, E_DIV, "DIV by 0");
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*r1 = p2->val / p3->val;
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return 1;
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}
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IMPL_START(idiv)
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{
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if (!p3->val)
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_except(ctx, E_DIV, "IDIV by 0");
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*r1 = (ulong)((long)p2->val/(long)p3->val);
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return 1;
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}
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//----------------------------------------------------------------------------//
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static void __unsigned_multiply128(ulong u, ulong v, ulong *hi, ulong *lo)
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{
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__uint128_t r = (__uint128_t)u * (__uint128_t)v;
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*hi = r >> 64;
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*lo = r;
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}
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IMPL_START(mulhi)
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{
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__unsigned_multiply128(p2->val, p3->val, r1, r2);
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return 2;
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}
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IMPL_START(mulf)
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{
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ulong tmp;
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__unsigned_multiply128(p2->val, p3->val, &tmp, r1);
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R(RFX) = p2->val ? (R(RFX)|CF|OF) : R(RFX)&~(CF|OF);
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return 1;
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}
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//----------------------------------------------------------------------------//
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static void __signed_multiply128(ulong u, ulong v, ulong *hi, ulong *lo)
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{
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__int128_t r = (__int128_t)(long)u * (__int128_t)(long)v;
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*hi = r >> 64;
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*lo = r;
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}
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IMPL_START(imulhi)
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{
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__signed_multiply128(p2->val, p3->val, r1, r2);
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return 2;
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}
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//----------------------------------------------------------------------------//
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