From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59029) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCSgG-0002dr-K8 for qemu-devel@nongnu.org; Tue, 27 Mar 2012 05:27:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SCSg9-0006Fi-Hi for qemu-devel@nongnu.org; Tue, 27 Mar 2012 05:27:08 -0400 Received: from mail-iy0-f173.google.com ([209.85.210.173]:59991) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCSg9-0005ws-Ay for qemu-devel@nongnu.org; Tue, 27 Mar 2012 05:27:01 -0400 Received: by mail-iy0-f173.google.com with SMTP id j26so11425942iaf.4 for ; Tue, 27 Mar 2012 02:27:00 -0700 (PDT) From: Jia Liu Date: Tue, 27 Mar 2012 17:24:46 +0800 Message-Id: <1332840290-24553-9-git-send-email-proljc@gmail.com> In-Reply-To: <1332840290-24553-1-git-send-email-proljc@gmail.com> References: <1332840290-24553-1-git-send-email-proljc@gmail.com> Content-Type: text/plain; charset="utf-8" Subject: [Qemu-devel] [PATCH V3 08/12] Add helper functions for MIPS DSP Bit/Manipulation instructions List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aurelien@aurel32.net Add helper functions for MIPS DSP Bit/Manipulation instructions. Signed-off-by: Jia Liu --- target-mips/dsp_helper.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++ target-mips/helper.h | 8 ++++ 2 files changed, 93 insertions(+), 0 deletions(-) diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c index 4692cc4..cd9764f 100644 --- a/target-mips/dsp_helper.c +++ b/target-mips/dsp_helper.c @@ -2912,6 +2912,91 @@ void helper_mulsa_w_ph(int ac, uint32_t rs, uint32_t rt) env->active_tc.LO[ac] = acc & MIPSDSP_LLO; } +/** DSP Bit/Manipulation Sub-class insns **/ +uint32_t helper_bitrev(uint32_t rt) +{ + int32_t temp; + uint32_t rd; + + temp = rt & MIPSDSP_LO; + rd = temp; + + return rd; +} + +void helper_insv(int reg_rt, uint32_t rs, uint32_t rt) +{ + uint32_t pos, size, msb, lsb, rs_f, rt_f; + uint32_t temp, temprs, temprt; + target_ulong dspc; + + dspc = env->active_tc.DSPControl; + pos = dspc & 0x1F; + size = (dspc >> 7) & 0x1F; + msb = pos + size - 1; + lsb = pos; + + if (lsb > msb) + return; + + rs_f = (((int32_t)0x01 << (msb - lsb + 1 + 1)) - 1) << lsb; + rt_f = rs_f ^ 0xFFFFFFFF; + temprs = rs & rs_f; + temprt = rt & rt_f; + temp = temprs | temprt; + env->active_tc.gpr[reg_rt] = temp; +} + +uint32_t helper_repl_qb(uint32_t imm) +{ + uint8_t temp; + uint32_t rd; + + temp = imm & 0x00FF; + rd = ((uint32_t)temp << 24) | ((uint32_t)temp << 16) | \ + ((uint32_t)temp << 8) | (uint32_t)temp; + + return rd; +} + +uint32_t helper_replv_qb(uint32_t rt) +{ + uint8_t temp; + uint32_t rd; + + temp = rt & MIPSDSP_Q0; + rd = ((uint32_t)temp << 24) | ((uint32_t)temp << 16) | \ + ((uint32_t)temp << 8) | (uint32_t)temp; + + return rd; +} + +uint32_t helper_repl_ph(uint32_t imm) +{ + int16_t temp; + int16_t imm_temp; + uint32_t rd; + + imm_temp = imm & 0x03FF; + temp = (imm_temp << 22) >> 22; + rd = (((uint32_t)temp << 16) & MIPSDSP_HI) | \ + ((uint32_t)temp & MIPSDSP_LO); + + return rd; +} + +uint32_t helper_replv_ph(uint32_t rt) +{ + uint16_t temp; + uint32_t rd; + + temp = rt & MIPSDSP_LO; + rd = ((uint32_t)temp << 16) | (uint32_t)temp; + + return rd; +} + + #undef MIPSDSP_LHI #undef MIPSDSP_LLO #undef MIPSDSP_HI diff --git a/target-mips/helper.h b/target-mips/helper.h index f3fffa1..c45c173 100644 --- a/target-mips/helper.h +++ b/target-mips/helper.h @@ -413,4 +413,12 @@ DEF_HELPER_FLAGS_2(mulq_s_w, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32) DEF_HELPER_FLAGS_2(mulq_rs_w, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32, i32) DEF_HELPER_3(mulsa_w_ph, void, int, i32, i32) +/* DSP Bit/Manipulation Sub-class insns */ +DEF_HELPER_FLAGS_1(bitrev, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32) +DEF_HELPER_3(insv, void, int, i32, i32) +DEF_HELPER_FLAGS_1(repl_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32) +DEF_HELPER_FLAGS_1(replv_qb, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32) +DEF_HELPER_FLAGS_1(repl_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32) +DEF_HELPER_FLAGS_1(replv_ph, TCG_CALL_CONST | TCG_CALL_PURE, i32, i32) + #include "def-helper.h" -- 1.7.5.4