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[Qemu-devel] [PULL v2 41/44] tests/tcg: mips: Test R5900 three-operand M
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PULL v2 41/44] tests/tcg: mips: Test R5900 three-operand MADD |
Date: |
Mon, 31 Dec 2018 15:56:37 +0100 |
From: Fredrik Noring <address@hidden>
Test R5900 three-operand MADD.
Reviewed-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Fredrik Noring <address@hidden>
---
tests/tcg/mips/mipsr5900/Makefile | 1 +
tests/tcg/mips/mipsr5900/madd.c | 45 +++++++++++++++++++++++++++++++++++++++
2 files changed, 46 insertions(+)
create mode 100644 tests/tcg/mips/mipsr5900/madd.c
diff --git a/tests/tcg/mips/mipsr5900/Makefile
b/tests/tcg/mips/mipsr5900/Makefile
index a1c388b..97ca2a6 100644
--- a/tests/tcg/mips/mipsr5900/Makefile
+++ b/tests/tcg/mips/mipsr5900/Makefile
@@ -10,6 +10,7 @@ CFLAGS = -Wall -mabi=32 -march=r5900 -static
TESTCASES = div1.tst
TESTCASES += divu1.tst
+TESTCASES += madd.tst
TESTCASES += mflohi1.tst
TESTCASES += mtlohi1.tst
TESTCASES += mult.tst
diff --git a/tests/tcg/mips/mipsr5900/madd.c b/tests/tcg/mips/mipsr5900/madd.c
new file mode 100644
index 0000000..9ad2ea6
--- /dev/null
+++ b/tests/tcg/mips/mipsr5900/madd.c
@@ -0,0 +1,45 @@
+/*
+ * Test R5900-specific three-operand MADD.
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <assert.h>
+
+int64_t madd(int64_t a, int32_t rs, int32_t rt)
+{
+ int32_t lo = a;
+ int32_t hi = a >> 32;
+ int32_t rd;
+ int64_t r;
+
+ __asm__ __volatile__ (
+ " mtlo %5\n"
+ " mthi %6\n"
+ " madd %0, %3, %4\n"
+ " mflo %1\n"
+ " mfhi %2\n"
+ : "=r" (rd), "=r" (lo), "=r" (hi)
+ : "r" (rs), "r" (rt), "r" (lo), "r" (hi));
+ r = ((int64_t)hi << 32) | (uint32_t)lo;
+
+ assert(a + (int64_t)rs * rt == r);
+ assert(rd == lo);
+
+ return r;
+}
+
+static void verify_madd(int64_t a, int32_t rs, int32_t rt, int64_t expected)
+{
+ assert(madd(a, rs, rt) == expected);
+ assert(madd(a, -rs, rt) == a + a - expected);
+ assert(madd(a, rs, -rt) == a + a - expected);
+ assert(madd(a, -rs, -rt) == expected);
+}
+
+int main()
+{
+ verify_madd(13, 17, 19, 336);
+
+ return 0;
+}
--
2.7.4
- [Qemu-devel] [PULL v2 29/44] disas: nanoMIPS: Rename the decoder of 'gpr4' gpr encoding type, (continued)
- [Qemu-devel] [PULL v2 29/44] disas: nanoMIPS: Rename the decoder of 'gpr4' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 30/44] disas: nanoMIPS: Comment the decoder of 'gpr4' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 32/44] disas: nanoMIPS: Comment the decoder of 'gpr4.zero' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 37/44] disas: nanoMIPS: Rename the decoder of 'gpr1' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 34/44] disas: nanoMIPS: Comment the decoder of 'gpr2.reg1' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 36/44] disas: nanoMIPS: Comment the decoder of 'gpr2.reg2' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 43/44] tests/tcg: mips: Test R5900 three-operand MADDU, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 35/44] disas: nanoMIPS: Rename the decoder of 'gpr2.reg2' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 33/44] disas: nanoMIPS: Rename the decoder of 'gpr2.reg1' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 42/44] tests/tcg: mips: Test R5900 three-operand MADD1, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 41/44] tests/tcg: mips: Test R5900 three-operand MADD,
Aleksandar Markovic <=
- [Qemu-devel] [PULL v2 40/44] disas: nanoMIPS: Add a note on documentation, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 38/44] disas: nanoMIPS: Comment the decoder of 'gpr1' gpr encoding type, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 44/44] tests/tcg: mips: Test R5900 three-operand MADDU1, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 18/44] disas: nanoMIPS: Fix order of some invocations, Aleksandar Markovic, 2018/12/31
- [Qemu-devel] [PULL v2 39/44] disas: nanoMIPS: Reorder declarations and definitions of gpr decoders, Aleksandar Markovic, 2018/12/31