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From: Zhao Liu <zhao1.liu@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [PATCH for-9.1 09/19] target/i386: move 60-BF opcodes to new decoder
Date: Thu, 11 Apr 2024 22:31:41 +0800	[thread overview]
Message-ID: <Zhf0Te5frGkdGnF9@intel.com> (raw)
In-Reply-To: <20240409164323.776660-10-pbonzini@redhat.com>

Hi Paolo,

I just did some tests,

> +    [0x98] = X86_OP_ENTRY1(CBW,    0,v), /* rAX */
> +    [0x99] = X86_OP_ENTRY3(CWD,    2,v, 0,v, None, None), /* rDX, rAX */
> +    [0x9A] = X86_OP_ENTRYrr(CALLF, I_unsigned,p, I_unsigned,w, chk(i64)),

X86_TYPE_I_unsigned is defined in patch 11, so the related changes
should be move into this patch to avoid compiling failures:

--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -1642,6 +1642,11 @@ static bool decode_op(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode,
         decode->immediate = op->imm = insn_get_signed(env, s, op->ot);
         break;

+    case X86_TYPE_I_unsigned:  /* Immediate */
+        op->unit = X86_OP_IMM;
+        decode->immediate = op->imm = insn_get(env, s, op->ot);
+        break;
+
     case X86_TYPE_L:  /* The upper 4 bits of the immediate select a 128-bit register */
         op->n = insn_get(env, s, op->ot) >> 4;
         break;
diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index ca99a620ce94..790ad5e1d006 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -48,6 +48,7 @@ typedef enum X86OpType {

     /* Custom */
     X86_TYPE_WM, /* modrm byte selects an XMM/YMM memory operand */
+    X86_TYPE_I_unsigned, /* Immediate, zero-extended */
     X86_TYPE_2op, /* 2-operand RMW instruction */
     X86_TYPE_LoBits, /* encoded in bits 0-2 of the operand + REX.B */
     X86_TYPE_0, /* Hard-coded GPRs (RAX..RDI) */

-Zhao


  parent reply	other threads:[~2024-04-11 14:18 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-09 16:43 [PATCH for-9.1 00/19] target/i386: convert 1-byte opcodes to new decoder Paolo Bonzini
2024-04-09 16:43 ` [PATCH for-9.1 01/19] target/i386: use TSTEQ/TSTNE to test low bits Paolo Bonzini
2024-04-09 16:43 ` [PATCH for-9.1 02/19] target/i386: use TSTEQ/TSTNE to check flags Paolo Bonzini
2024-04-09 16:43 ` [PATCH for-9.1 03/19] target/i386: remove mask from CCPrepare Paolo Bonzini
2024-04-09 17:23   ` Philippe Mathieu-Daudé
2024-04-09 16:43 ` [PATCH for-9.1 04/19] target/i386: do not use s->tmp0 and s->tmp4 to compute flags Paolo Bonzini
2024-04-10  6:34   ` Richard Henderson
2024-04-10 18:33     ` Paolo Bonzini
2024-04-09 16:43 ` [PATCH for-9.1 05/19] target/i386: reintroduce debugging mechanism Paolo Bonzini
2024-04-09 16:43 ` [PATCH for-9.1 06/19] target/i386: move 00-5F opcodes to new decoder Paolo Bonzini
2024-04-11  2:50   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 07/19] target/i386: extract gen_far_call/jmp, reordering temporaries Paolo Bonzini
2024-04-11  2:55   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 08/19] target/i386: allow instructions with more than one immediate Paolo Bonzini
2024-04-11  2:57   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 09/19] target/i386: move 60-BF opcodes to new decoder Paolo Bonzini
2024-04-11  4:12   ` Richard Henderson
2024-04-11 11:18     ` Paolo Bonzini
2024-04-11 14:31   ` Zhao Liu [this message]
2024-04-11 15:19   ` Zhao Liu
2024-04-11 16:43     ` Paolo Bonzini
2024-04-24 11:13     ` Paolo Bonzini
2024-04-25 15:29       ` Zhao Liu
2024-04-09 16:43 ` [PATCH for-9.1 10/19] target/i386: generalize gen_movl_seg_T0 Paolo Bonzini
2024-04-11  4:13   ` Richard Henderson
2024-04-11 14:45   ` Zhao Liu
2024-04-09 16:43 ` [PATCH for-9.1 11/19] target/i386: move C0-FF opcodes to new decoder (except for x87) Paolo Bonzini
2024-04-11  6:02   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 12/19] target/i386: merge and enlarge a few ranges for call to disas_insn_new Paolo Bonzini
2024-04-11  7:56   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 13/19] target/i386: move remaining conditional operations to new decoder Paolo Bonzini
2024-04-11  8:00   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 14/19] target/i386: move BSWAP " Paolo Bonzini
2024-04-11  8:02   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 15/19] target/i386: port extensions of one-byte opcodes " Paolo Bonzini
2024-04-11  8:08   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 16/19] target/i386: remove now-converted opcodes from old decoder Paolo Bonzini
2024-04-11  8:11   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 17/19] target/i386: decode x87 instructions in a separate function Paolo Bonzini
2024-04-09 17:20   ` Philippe Mathieu-Daudé
2024-04-11  8:16   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 18/19] target/i386: split legacy decoder into " Paolo Bonzini
2024-04-09 17:17   ` Philippe Mathieu-Daudé
2024-04-11  8:17   ` Richard Henderson
2024-04-09 16:43 ` [PATCH for-9.1 19/19] target/i386: remove duplicate prefix decoding Paolo Bonzini
2024-04-11  8:34   ` Richard Henderson

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