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Re: [Qemu-riscv] [Qemu-devel] [RFC v1 20/23] riscv: tcg-target: Add the

From: Richard Henderson
Subject: Re: [Qemu-riscv] [Qemu-devel] [RFC v1 20/23] riscv: tcg-target: Add the target init code
Date: Fri, 16 Nov 2018 18:26:33 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0

On 11/15/18 11:36 PM, Alistair Francis wrote:
> +    tcg_regset_set_reg(s->reserved_regs, TCG_REG_L0);
> +    tcg_regset_set_reg(s->reserved_regs, TCG_REG_L1);
> +    tcg_regset_set_reg(s->reserved_regs, TCG_REG_RA);

Why are these three reserved?


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