From: Paolo Bonzini <pbonzini@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 0/8] Simplify byte/word opcode pair decode
Date: Mon, 23 Aug 2010 15:29:18 +0200 [thread overview]
Message-ID: <4C7277AE.3040102@redhat.com> (raw)
In-Reply-To: <1282561577-24491-1-git-send-email-avi@redhat.com>
On 08/23/2010 01:06 PM, Avi Kivity wrote:
> Many x86 instructions come in pairs - byte and word variants where bit 0
> of the opcode determines operand size. Use this to simplify the decode
> tables.
Many actually come in quadruples, bit 0 is the size and bit 1 says which
of ModRM and REG is the destination.
example:
D2bv(DstMem | SrcReg | ModRM | Lock), D2bv(DstReg | SrcMem | ModRM),
Paolo
next prev parent reply other threads:[~2010-08-23 13:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-23 11:06 [PATCH 0/8] Simplify byte/word opcode pair decode Avi Kivity
2010-08-23 11:06 ` [PATCH 1/8] KVM: x86 emulator: support byte/word opcode pairs Avi Kivity
2010-08-23 11:06 ` [PATCH 2/8] KVM: x86 emulator: simplify ALU block (opcodes 00-3F) decode flags Avi Kivity
2010-08-25 19:39 ` Marcelo Tosatti
2010-08-26 8:26 ` Avi Kivity
2010-08-23 11:06 ` [PATCH 3/8] KVM: x86 emulator: simplify string instruction " Avi Kivity
2010-08-23 11:06 ` [PATCH 4/8] KVM: x86 emulator: simplify instruction decode flags for opcodes 80-8F Avi Kivity
2010-08-23 11:06 ` [PATCH 5/8] KVM: x86 emulator: simplify instruction decode flags for opcodes A0-AF Avi Kivity
2010-08-23 11:06 ` [PATCH 6/8] KVM: x86 emulator: simplify instruction decode flags for opcodes C0-DF Avi Kivity
2010-08-23 11:06 ` [PATCH 7/8] KVM: x86 emulator: simplify instruction decode flags for opcodes E0-FF Avi Kivity
2010-08-23 13:33 ` Gleb Natapov
2010-08-23 13:46 ` Avi Kivity
2010-08-23 13:56 ` Gleb Natapov
2010-08-23 11:06 ` [PATCH 8/8] KVM: x86 emulator: simplify instruction decode flags for opcodes 0F 00-FF Avi Kivity
2010-08-23 13:29 ` Paolo Bonzini [this message]
2010-08-23 13:48 ` [PATCH 0/8] Simplify byte/word opcode pair decode Avi Kivity
2010-08-23 14:04 ` Paolo Bonzini
2010-08-23 14:13 ` Avi Kivity
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