43 lines
1.1 KiB
C
43 lines
1.1 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 <pc/arch.h>
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#define OUTPUT(p, r) { \
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if (p->type == A_REG) \
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R(p->reg) = r; \
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else if (ACC_IS_MEM(p)) \
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writemem(r, p->addr, p->mlen); \
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else _except(E_ACC, "Trying to output to an IMM"); \
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}
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//
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// Executes an instruction
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//
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void exec_instr(instr_t *in,
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acc_t *p1,
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acc_t *p2,
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acc_t *p3)
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{
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uint out;
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ulong r1 = 0, r2 = 0;
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// Global instruction counter
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ctx->ninstrs++;
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if (ctx->dumpsw)
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dump_instr(in, p1, p2, p3);
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out = in->func(p1, p2, p3, &r1, &r2);
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if (out)
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{
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OUTPUT(p1, r1);
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if (__builtin_expect(out == 2, 0))
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OUTPUT(p2, r2);
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R(RZX) = 0;
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}
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}
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