55 lines
796 B
C
55 lines
796 B
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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//
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// Stack manipulation instructions
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//
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IMPL_START_1(push)
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{
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R(RSP) -= 8;
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writemem(ctx, v1, R(RSP), 8);
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}
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IMPL_END;
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IMPL_START_1(pop)
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{
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v1 = readmem(ctx, R(RSP), 8);
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R(RSP) += 8;
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}
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IMPL_OUT;
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IMPL_START_1(call)
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{
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R(RSP) -= 8;
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writemem(ctx, R(RIP), R(RSP), 8);
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R(RIP) = v1;
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}
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IMPL_END;
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IMPL_START_0(ret)
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{
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R(RIP) = readmem(ctx, R(RSP), 8);
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R(RSP) += 8;
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}
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IMPL_END;
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IMPL_START_0(enter)
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{
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writemem(ctx, R(RBP), R(RSP) - 8, 8);
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R(RBP) = R(RSP) - 8;
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R(RSP) -= (p1->val + 1) * 8;
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}
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IMPL_END;
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IMPL_START_0(leave)
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{
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R(RSP) = R(RBP) + 8;
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R(RBP) = readmem(ctx, R(RBP), 8);
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}
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IMPL_END;
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