emit_arm64_a32: Fix A32SetCpsrNZC for immediate carry
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33b3376fb1
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735f5b787a
1 changed files with 23 additions and 9 deletions
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@ -313,17 +313,31 @@ template<>
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void EmitIR<IR::Opcode::A32SetCpsrNZC>(oaknut::CodeGenerator& code, EmitContext& ctx, IR::Inst* inst) {
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auto args = ctx.reg_alloc.GetArgumentInfo(inst);
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auto Wnz = ctx.reg_alloc.ReadW(args[0]);
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auto Wc = ctx.reg_alloc.ReadW(args[1]);
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RegAlloc::Realize(Wnz, Wc);
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// TODO: Track latent value
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code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
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code.AND(Wscratch0, Wscratch0, 0x10000000);
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code.ORR(Wscratch0, Wscratch0, Wnz);
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code.ORR(Wscratch0, Wscratch0, Wc);
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code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
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if (args[1].IsImmediate()) {
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const u32 carry = args[1].GetImmediateU1() ? 0x2000'0000 : 0;
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auto Wnz = ctx.reg_alloc.ReadW(args[0]);
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RegAlloc::Realize(Wnz);
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code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
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code.AND(Wscratch0, Wscratch0, 0x10000000);
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code.ORR(Wscratch0, Wscratch0, Wnz);
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if (carry) {
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code.ORR(Wscratch0, Wscratch0, carry);
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}
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code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
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} else {
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auto Wnz = ctx.reg_alloc.ReadW(args[0]);
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auto Wc = ctx.reg_alloc.ReadW(args[1]);
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RegAlloc::Realize(Wnz, Wc);
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code.LDR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
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code.AND(Wscratch0, Wscratch0, 0x10000000);
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code.ORR(Wscratch0, Wscratch0, Wnz);
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code.ORR(Wscratch0, Wscratch0, Wc);
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code.STR(Wscratch0, Xstate, offsetof(A32JitState, cpsr_nzcv));
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}
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}
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template<>
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