diff mbox

[V3,06/12] Add helper functions for MIPS DSP GPR-Based Shift instructions

Message ID 1332840290-24553-7-git-send-email-proljc@gmail.com
State New
Headers show

Commit Message

Jia Liu March 27, 2012, 9:24 a.m. UTC 
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(-)

Comments

Richard Henderson March 27, 2012, 4:11 p.m. UTC | #1 
On 03/27/12 02:24, Jia Liu wrote:
> +DEF_HELPER_FLAGS_2(shll_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)

Likewise, some of these are not pure|const...

> +DEF_HELPER_FLAGS_2(shra_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)

... and some are.


r~
Jia Liu March 28, 2012, 1:43 a.m. UTC | #2 
On Wed, Mar 28, 2012 at 12:11 AM, Richard Henderson <rth@twiddle.net> wrote:
> On 03/27/12 02:24, Jia Liu wrote:
>> +DEF_HELPER_FLAGS_2(shll_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
>

It should be DEF_HELPER_2(shll_qb, i32, int, i32). Is it?
Sorry I'm not sure about it.

> Likewise, some of these are not pure|const...
>
>> +DEF_HELPER_FLAGS_2(shra_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
>
> ... and some are.
>
>
> r~

Regards,
Jia.
Richard Henderson March 29, 2012, 1:09 p.m. UTC | #3 
On 03/27/2012 09:43 PM, Jia Liu wrote:
> On Wed, Mar 28, 2012 at 12:11 AM, Richard Henderson <rth@twiddle.net> wrote:
>> On 03/27/12 02:24, Jia Liu wrote:
>>> +DEF_HELPER_FLAGS_2(shll_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, int, i32)
>>
> 
> It should be DEF_HELPER_2(shll_qb, i32, int, i32). Is it?
> Sorry I'm not sure about it.

Exactly.


r~
diff mbox

Patch

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"