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target/m68k: add cpush/cinv
Add cache lines invalidate and cache lines push as no-op operations, as we don't have cache. These instructions are 68040 only. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180104012913.30763-11-laurent@vivier.eu>
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@ -4496,6 +4496,24 @@ DISAS_INSN(cpushl)
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/* Cache push/invalidate. Implement as no-op. */
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}
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DISAS_INSN(cpush)
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{
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if (IS_USER(s)) {
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gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);
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return;
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}
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/* Cache push/invalidate. Implement as no-op. */
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}
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DISAS_INSN(cinv)
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{
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if (IS_USER(s)) {
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gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);
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return;
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}
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/* Invalidate cache line. Implement as no-op. */
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}
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DISAS_INSN(wddata)
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{
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gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);
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@ -5674,6 +5692,8 @@ void register_m68k_insns (CPUM68KState *env)
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INSN(fsave, f300, ffc0, FPU);
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INSN(intouch, f340, ffc0, CF_ISA_A);
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INSN(cpushl, f428, ff38, CF_ISA_A);
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INSN(cpush, f420, ff20, M68040);
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INSN(cinv, f400, ff20, M68040);
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INSN(wddata, fb00, ff00, CF_ISA_A);
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INSN(wdebug, fbc0, ffc0, CF_ISA_A);
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#endif
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