From: Aleksandar Markovic <aleksandar.markovic@rt-rk.com>
To: qemu-devel@nongnu.org
Cc: arikalo@wavecomp.com, amarkovic@wavecomp.com
Subject: [Qemu-devel] [PATCH v2 4/4] target/mips: Fix emulation of ILVR.<B|H|W> on big endian host
Date: Thu, 20 Jun 2019 15:45:49 +0200 [thread overview]
Message-ID: <1561038349-17105-5-git-send-email-aleksandar.markovic@rt-rk.com> (raw)
In-Reply-To: <1561038349-17105-1-git-send-email-aleksandar.markovic@rt-rk.com>
From: Aleksandar Markovic <amarkovic@wavecomp.com>
Fix emulation of ILVR.<B|H|W> on big endian host by applying
mapping of data element indexes from one endian to another.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
---
target/mips/msa_helper.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/target/mips/msa_helper.c b/target/mips/msa_helper.c
index 458c840..7a9bfb3 100644
--- a/target/mips/msa_helper.c
+++ b/target/mips/msa_helper.c
@@ -2001,6 +2001,24 @@ void helper_msa_ilvr_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
switch (df) {
case DF_BYTE:
+#if defined(TARGET_WORDS_BIGENDIAN)
+ pwd->b[8] = pws->b[0];
+ pwd->b[9] = pwt->b[0];
+ pwd->b[10] = pws->b[1];
+ pwd->b[11] = pwt->b[1];
+ pwd->b[12] = pws->b[2];
+ pwd->b[13] = pwt->b[2];
+ pwd->b[14] = pws->b[3];
+ pwd->b[15] = pwt->b[3];
+ pwd->b[0] = pws->b[4];
+ pwd->b[1] = pwt->b[4];
+ pwd->b[2] = pws->b[5];
+ pwd->b[3] = pwt->b[5];
+ pwd->b[4] = pws->b[6];
+ pwd->b[5] = pwt->b[6];
+ pwd->b[6] = pws->b[7];
+ pwd->b[7] = pwt->b[7];
+#else
pwd->b[15] = pws->b[7];
pwd->b[14] = pwt->b[7];
pwd->b[13] = pws->b[6];
@@ -2017,8 +2035,19 @@ void helper_msa_ilvr_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
pwd->b[2] = pwt->b[1];
pwd->b[1] = pws->b[0];
pwd->b[0] = pwt->b[0];
+#endif
break;
case DF_HALF:
+#if defined(TARGET_WORDS_BIGENDIAN)
+ pwd->h[4] = pws->h[0];
+ pwd->h[5] = pwt->h[0];
+ pwd->h[6] = pws->h[1];
+ pwd->h[7] = pwt->h[1];
+ pwd->h[0] = pws->h[2];
+ pwd->h[1] = pwt->h[2];
+ pwd->h[2] = pws->h[3];
+ pwd->h[3] = pwt->h[3];
+#else
pwd->h[7] = pws->h[3];
pwd->h[6] = pwt->h[3];
pwd->h[5] = pws->h[2];
@@ -2027,12 +2056,20 @@ void helper_msa_ilvr_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
pwd->h[2] = pwt->h[1];
pwd->h[1] = pws->h[0];
pwd->h[0] = pwt->h[0];
+#endif
break;
case DF_WORD:
+#if defined(TARGET_WORDS_BIGENDIAN)
+ pwd->w[2] = pws->w[0];
+ pwd->w[3] = pwt->w[0];
+ pwd->w[0] = pws->w[1];
+ pwd->w[1] = pwt->w[1];
+#else
pwd->w[3] = pws->w[1];
pwd->w[2] = pwt->w[1];
pwd->w[1] = pws->w[0];
pwd->w[0] = pwt->w[0];
+#endif
break;
case DF_DOUBLE:
pwd->d[1] = pws->d[0];
--
2.7.4
prev parent reply other threads:[~2019-06-20 13:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-20 13:45 [Qemu-devel] [PATCH v2 0/4] target/mips: Fix some issues of MSA emulation on big endian hosts Aleksandar Markovic
2019-06-20 13:45 ` [Qemu-devel] [PATCH v2 1/4] target/mips: Fix emulation of ILVEV.<B|H|W> on big endian host Aleksandar Markovic
2019-06-26 16:02 ` Richard Henderson
2019-06-20 13:45 ` [Qemu-devel] [PATCH v2 2/4] target/mips: Fix emulation of ILVOD.<B|H|W> " Aleksandar Markovic
2019-06-20 13:45 ` [Qemu-devel] [PATCH v2 3/4] target/mips: Fix emulation of ILVL.<B|H|W> " Aleksandar Markovic
2019-06-20 13:45 ` Aleksandar Markovic [this message]
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