From: "Blue Swirl" <blauwirbel@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [5112] SH4: convert a few helpers to TCG
Date: Sat, 30 Aug 2008 08:06:33 +0300 [thread overview]
Message-ID: <f43fc5580808292206l451e5bfblb5fad4e6492e09e@mail.gmail.com> (raw)
In-Reply-To: <E1KZCyL-0005aj-Me@cvs.savannah.gnu.org>
On Sat, Aug 30, 2008 at 2:01 AM, Aurelien Jarno <aurelien@aurel32.net> wrote:
> case 0xc300: /* trapa #imm */
> - CHECK_NOT_DELAY_SLOT tcg_gen_movi_i32(cpu_pc, ctx->pc);
> - gen_op_trapa(B7_0);
> + CHECK_NOT_DELAY_SLOT
> + tcg_gen_movi_i32(cpu_pc, ctx->pc);
> + tcg_gen_movi_i32(cpu_T[0], B7_0);
> + tcg_gen_helper_0_1(helper_trapa, cpu_T[0]);
Instead of introducing new uses of cpu_T[0], which you will probably
eliminate in the end of conversion, you could pass B7_0 using a
tcg_const temporary variable.
prev parent reply other threads:[~2008-08-30 5:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-29 23:01 [Qemu-devel] [5112] SH4: convert a few helpers to TCG Aurelien Jarno
2008-08-30 5:06 ` Blue Swirl [this message]
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