From: Jia Liu <proljc@gmail.com>
To: qemu-devel@nongnu.org
Cc: aurelien@aurel32.net
Subject: [Qemu-devel] [PATCH V3 06/12] Add helper functions for MIPS DSP GPR-Based Shift instructions
Date: Tue, 27 Mar 2012 17:24:44 +0800 [thread overview]
Message-ID: <1332840290-24553-7-git-send-email-proljc@gmail.com> (raw)
In-Reply-To: <1332840290-24553-1-git-send-email-proljc@gmail.com>
Add helper functions for MIPS DSP GPR-Based Shift instructions.
Signed-off-by: Jia Liu <proljc@gmail.com>
---
target-mips/dsp_helper.c | 411 ++++++++++++++++++++++++++++++++++++++++++++++
target-mips/helper.h | 24 +++
2 files changed, 435 insertions(+), 0 deletions(-)
diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c
index 2bed0fc..d73061f 100644
--- a/target-mips/dsp_helper.c
+++ b/target-mips/dsp_helper.c
@@ -1776,6 +1776,417 @@ uint32_t helper_preceu_ph_qbra(uint32_t rt)
return rd;
}
+/** DSP GPR-Based Shift Sub-class insns **/
+uint32_t helper_shll_qb(int sa, uint32_t rt)
+{
+ uint8_t rt3, rt2, rt1, rt0;
+ uint8_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ tempD = mipsdsp_lshift8(rt3, sa);
+ tempC = mipsdsp_lshift8(rt2, sa);
+ tempB = mipsdsp_lshift8(rt1, sa);
+ tempA = mipsdsp_lshift8(rt0, sa);
+ rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+ ((uint32_t)tempB << 8) | ((uint32_t)tempA);
+
+ return rd;
+}
+
+uint32_t helper_shllv_qb(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs2_0;
+ uint8_t rt3, rt2, rt1, rt0;
+ uint8_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rs2_0 = rs & 0x07;
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ tempD = mipsdsp_lshift8(rt3, rs2_0);
+ tempC = mipsdsp_lshift8(rt2, rs2_0);
+ tempB = mipsdsp_lshift8(rt1, rs2_0);
+ tempA = mipsdsp_lshift8(rt0, rs2_0);
+
+ rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+ ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shll_ph(int sa, uint32_t rt)
+{
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = mipsdsp_lshift16(rth, sa);
+ tempA = mipsdsp_lshift16(rtl, sa);
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shllv_ph(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs3_0;
+ uint16_t rth, rtl, tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ rs3_0 = rs & 0x0F;
+
+ tempB = mipsdsp_lshift16(rth, rs3_0);
+ tempA = mipsdsp_lshift16(rtl, rs3_0);
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shll_s_ph(int sa, uint32_t rt)
+{
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = mipsdsp_sat16_lshift(rth, sa);
+ tempA = mipsdsp_sat16_lshift(rtl, sa);
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shllv_s_ph(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs3_0;
+ uint16_t rth, rtl, tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ rs3_0 = rs & 0x0F;
+
+ tempB = mipsdsp_sat16_lshift(rth, rs3_0);
+ tempA = mipsdsp_sat16_lshift(rtl, rs3_0);
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shll_s_w(int sa, uint32_t rt)
+{
+ uint32_t temp, rd;
+
+ temp = mipsdsp_sat32_lshift(rt, sa);
+ rd = temp;
+
+ return rd;
+}
+
+uint32_t helper_shllv_s_w(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs4_0;
+ uint32_t rd;
+
+ rs4_0 = rs & 0x1F;
+ rd = mipsdsp_sat32_lshift(rt, rs4_0);
+
+ return rd;
+}
+
+uint32_t helper_shrl_qb(int sa, uint32_t rt)
+{
+ uint8_t rt3, rt2, rt1, rt0;
+ uint8_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ tempD = mipsdsp_rshift8(rt3, sa);
+ tempC = mipsdsp_rshift8(rt2, sa);
+ tempB = mipsdsp_rshift8(rt1, sa);
+ tempA = mipsdsp_rshift8(rt0, sa);
+
+ rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+ ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shrlv_qb(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs2_0;
+ uint8_t rt3, rt2, rt1, rt0;
+ uint8_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rs2_0 = rs & 0x07;
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ tempD = mipsdsp_rshift8(rt3, rs2_0);
+ tempC = mipsdsp_rshift8(rt2, rs2_0);
+ tempB = mipsdsp_rshift8(rt1, rs2_0);
+ tempA = mipsdsp_rshift8(rt0, rs2_0);
+ rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+ ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shrl_ph(int sa, uint32_t rt)
+{
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = rth >> sa;
+ tempA = rtl >> sa;
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shrlv_ph(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs3_0;
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rs3_0 = rs & 0x0F;
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+
+ tempB = rth >> rs3_0;
+ tempA = rtl >> rs3_0;
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shra_qb(int sa, uint32_t rt)
+{
+ int8_t rt3, rt2, rt1, rt0;
+ uint8_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ tempD = rt3 >> sa;
+ tempC = rt2 >> sa;
+ tempB = rt1 >> sa;
+ tempA = rt0 >> sa;
+
+ rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+ ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shra_r_qb(int sa, uint32_t rt)
+{
+ int8_t rt3, rt2, rt1, rt0;
+ uint16_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ if (sa == 0) {
+ tempD = rt3 & 0x00FF;
+ tempC = rt2 & 0x00FF;
+ tempB = rt1 & 0x00FF;
+ tempA = rt0 & 0x00FF;
+ } else {
+ tempD = ((int16_t)rt3 >> (sa - 1)) + 1;
+ tempC = ((int16_t)rt2 >> (sa - 1)) + 1;
+ tempB = ((int16_t)rt1 >> (sa - 1)) + 1;
+ tempA = ((int16_t)rt0 >> (sa - 1)) + 1;
+ }
+
+ rd = ((uint32_t)((tempD >> 1) & 0x00FF) << 24) | \
+ ((uint32_t)((tempC >> 1) & 0x00FF) << 16) | \
+ ((uint32_t)((tempB >> 1) & 0x00FF) << 8) | \
+ (uint32_t)((tempA >> 1) & 0x00FF) ;
+
+ return rd;
+}
+
+uint32_t helper_shrav_qb(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs2_0;
+ int8_t rt3, rt2, rt1, rt0;
+ uint8_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rs2_0 = rs & 0x07;
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ if (rs2_0 == 0) {
+ tempD = rt3;
+ tempC = rt2;
+ tempB = rt1;
+ tempA = rt0;
+ } else {
+ tempD = rt3 >> rs2_0;
+ tempC = rt2 >> rs2_0;
+ tempB = rt1 >> rs2_0;
+ tempA = rt0 >> rs2_0;
+ }
+
+ rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+ ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shrav_r_qb(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs2_0;
+ int8_t rt3, rt2, rt1, rt0;
+ uint16_t tempD, tempC, tempB, tempA;
+ uint32_t rd;
+
+ rs2_0 = rs & 0x07;
+ rt3 = (rt & MIPSDSP_Q3) >> 24;
+ rt2 = (rt & MIPSDSP_Q2) >> 16;
+ rt1 = (rt & MIPSDSP_Q1) >> 8;
+ rt0 = rt & MIPSDSP_Q0;
+
+ if (rs2_0 == 0) {
+ tempD = (int16_t)rt3 << 1;
+ tempC = (int16_t)rt2 << 1;
+ tempB = (int16_t)rt1 << 1;
+ tempA = (int16_t)rt0 << 1;
+ } else {
+ tempD = ((int16_t)rt3 >> (rs2_0 - 1)) + 1;
+ tempC = ((int16_t)rt2 >> (rs2_0 - 1)) + 1;
+ tempB = ((int16_t)rt1 >> (rs2_0 - 1)) + 1;
+ tempA = ((int16_t)rt0 >> (rs2_0 - 1)) + 1;
+ }
+
+ rd = ((uint32_t)((tempD >> 1) & 0x00FF) << 24) | \
+ ((uint32_t)((tempC >> 1) & 0x00FF) << 16) | \
+ ((uint32_t)((tempB >> 1) & 0x00FF) << 8) | \
+ (uint32_t)((tempA >> 1) & 0x00FF) ;
+
+ return rd;
+}
+
+uint32_t helper_shra_ph(int sa, uint32_t rt)
+{
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = mipsdsp_rashift16(rth, sa);
+ tempA = mipsdsp_rashift16(rtl, sa);
+ rd = ((uint32_t)tempB << 16) | (uint32_t) tempA;
+
+ return rd;
+}
+
+uint32_t helper_shrav_ph(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs3_0;
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rs3_0 = rs & 0x0F;
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = mipsdsp_rashift16(rth, rs3_0);
+ tempA = mipsdsp_rashift16(rtl, rs3_0);
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shra_r_ph(int sa, uint32_t rt)
+{
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = mipsdsp_rnd16_rashift(rth, sa);
+ tempA = mipsdsp_rnd16_rashift(rtl, sa);
+ rd = ((uint32_t)tempB << 16) | (uint32_t) tempA;
+
+ return rd;
+}
+
+uint32_t helper_shrav_r_ph(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs3_0;
+ uint16_t rth, rtl;
+ uint16_t tempB, tempA;
+ uint32_t rd;
+
+ rs3_0 = rs & 0x0F;
+ rth = (rt & MIPSDSP_HI) >> 16;
+ rtl = rt & MIPSDSP_LO;
+ tempB = mipsdsp_rnd16_rashift(rth, rs3_0);
+ tempA = mipsdsp_rnd16_rashift(rtl, rs3_0);
+
+ rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+ return rd;
+}
+
+uint32_t helper_shra_r_w(int sa, uint32_t rt)
+{
+ uint32_t rd;
+
+ rd = mipsdsp_rnd32_rashift(rt, sa);
+
+ return rd;
+}
+
+uint32_t helper_shrav_r_w(uint32_t rs, uint32_t rt)
+{
+ uint8_t rs4_0;
+ uint32_t rd;
+
+ rs4_0 = rs & 0x1F;
+ rd = mipsdsp_rnd32_rashift(rt, rs4_0);
+
+ return rd;
+}
+
#undef MIPSDSP_LHI
#undef MIPSDSP_LLO
diff --git a/target-mips/helper.h b/target-mips/helper.h
index 40e682b..191be3a 100644
--- a/target-mips/helper.h
+++ b/target-mips/helper.h
@@ -355,4 +355,28 @@ DEF_HELPER_FLAGS_1(preceu_ph_qbr, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32)
DEF_HELPER_FLAGS_1(preceu_ph_qbla, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32)
DEF_HELPER_FLAGS_1(preceu_ph_qbra, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32)
+/* DSP GPR-Based Shift Sub-class insns */
+DEF_HELPER_FLAGS_2(shll_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shllv_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shll_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shllv_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shll_s_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shllv_s_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shll_s_w, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shllv_s_w, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shrl_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shrlv_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shrl_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shrlv_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shra_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shra_r_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shrav_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shrav_r_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shra_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shrav_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shra_r_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shrav_r_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(shra_r_w, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
+DEF_HELPER_FLAGS_2(shrav_r_w, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32)
+
#include "def-helper.h"
--
1.7.5.4
next prev parent reply other threads:[~2012-03-27 9:26 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-27 9:24 [Qemu-devel] [PATCH V3 00/12] Qemu MIPS ASE DSP Support Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 01/12] add MIPS DSP internal functions Jia Liu
2012-03-27 15:33 ` Richard Henderson
2012-03-28 2:03 ` Jia Liu
2012-03-29 11:16 ` Richard Henderson
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 02/12] Use correct acc value to index cpu_HI/cpu_LO rather than using a fix number Jia Liu
2012-03-27 15:34 ` Richard Henderson
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 03/12] Add MIPS DSP Branch instruction Support Jia Liu
2012-03-27 15:46 ` Richard Henderson
2012-03-28 1:27 ` Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 04/12] Add MIPS DSP Load instructions Support Jia Liu
2012-03-27 15:49 ` Richard Henderson
2012-03-28 1:46 ` Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 05/12] Add helper functions for MIPS DSP Arithmetic instructions Jia Liu
2012-03-27 16:03 ` Richard Henderson
2012-03-28 1:45 ` Jia Liu
2012-03-27 9:24 ` Jia Liu [this message]
2012-03-27 16:11 ` [Qemu-devel] [PATCH V3 06/12] Add helper functions for MIPS DSP GPR-Based Shift instructions Richard Henderson
2012-03-28 1:43 ` Jia Liu
2012-03-29 13:09 ` Richard Henderson
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 07/12] Add helper functions for MIPS DSP Multiply instructions Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 08/12] Add helper functions for MIPS DSP Bit/Manipulation instructions Jia Liu
2012-03-27 16:23 ` Richard Henderson
2012-03-28 1:47 ` Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 09/12] Add helper functions for MIPS DSP Compare-Pick instructions Jia Liu
2012-03-27 17:42 ` Richard Henderson
2012-03-28 1:52 ` Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 10/12] Add helper functions for MIPS DSP Accumulator and DSPControl Access instrutions helpers Jia Liu
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 11/12] Handle MIPS DSP instructions in target-mips/translate.c Jia Liu
2012-03-27 17:48 ` Richard Henderson
2012-03-28 1:36 ` Jia Liu
2012-03-29 13:20 ` Richard Henderson
2012-03-27 9:24 ` [Qemu-devel] [PATCH V3 12/12] add MIPS DSP testcases Jia Liu
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