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https://gitlab.os-k.eu/os-k-team/kvisc.git
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108 lines
1.3 KiB
C
108 lines
1.3 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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IMPL_COND(lea);
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IMPL_COND(mov);
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IMPL_COND(xchg);
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IMPL_COND(cmpxchg);
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/*
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IMPL_COND(xchgb);
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IMPL_COND(xchgw);
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IMPL_COND(xchgl);
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IMPL_COND(xchgt);
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*/
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//
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// Movement instructions
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//
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IMPL_START_2(mov)
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{
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v1 = v2;
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}
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IMPL_OUT;
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IMPL_START_2(movb)
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{
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v1 = (v1 & 0xFFFFFFFFFFFFFF00)
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| (v2 & 0x00000000000000FF);
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}
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IMPL_OUT;
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IMPL_START_2(movw)
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{
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v1 = (v1 & 0xFFFFFFFFFFFF0000)
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| (v2 & 0x000000000000FFFF);
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}
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IMPL_OUT;
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IMPL_START_2(movl)
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{
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v1 = (v1 & 0xFFFFFFFF00000000)
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| (v2 & 0x00000000FFFFFFFF);
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}
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IMPL_OUT;
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IMPL_START_2(movt)
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{
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v1 = (v1 & 0xFFFF000000000000)
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| (v2 & 0x0000FFFFFFFFFFFF);
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}
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IMPL_OUT;
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IMPL_COND(movb);
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IMPL_COND(movw);
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IMPL_COND(movl);
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IMPL_COND(movt);
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IMPL_START_2(xchg)
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{
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ulong t = v1;
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v1 = v2;
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v2 = t;
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}
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IMPL_OUT_2;
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IMPL_START_1(lea)
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{
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ulong v2 = (p2->type == A_REG ? R(p2->val) : p2->val);
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if (p2->mem) {
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v2 += p2->off + R(p2->offreg);
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}
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v1 = v2;
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}
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IMPL_OUT;
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IMPL_START_2(cmpxchg)
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{
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if (rax == v1) {
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flg |= ZF;
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v1 = v2;
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}
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else {
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flg &= ~ZF;
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rax = v1;
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}
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}
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IMPL_OUT;
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IMPL_START_1(gco)
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{
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v1 = cr1;
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}
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IMPL_OUT;
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IMPL_START_1(gcd)
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{
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v1 = cr2;
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}
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IMPL_OUT;
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