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authorFredrik Noring2018-10-21 17:34:04 +0200
committerAleksandar Markovic2018-10-24 15:20:30 +0200
commit3ef65697a1a6ed8c8a6fa7b75f6f06362e2bc7d0 (patch)
treec7ba90831df1f7348bb237aed55bd8dba1d8979f /target/mips/translate.c
parenttarget/mips: Define R5900 MMI<0|1|2|3> subclasses and opcode constants (diff)
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target/mips: Define R5900 MMI0 opcode constants
Add definition of MI0 opcodes. Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Fredrik Noring <noring@nocrew.org> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Diffstat (limited to 'target/mips/translate.c')
-rw-r--r--target/mips/translate.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c
index ae988177a1..242f2df2e2 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -2180,6 +2180,57 @@ enum {
TX79_MMI_PSRAW = 0x3F | TX79_CLASS_MMI,
};
+/*
+ * TX79 Multimedia Instructions with opcode field = MMI and bits 5..0 = MMI0:
+ *
+ * 31 26 10 6 5 0
+ * +--------+----------------------+--------+--------+
+ * | MMI | |function| MMI0 |
+ * +--------+----------------------+--------+--------+
+ *
+ * function bits 7..6
+ * bits | 0 | 1 | 2 | 3
+ * 10..8 | 00 | 01 | 10 | 11
+ * -------+-------+-------+-------+-------
+ * 0 000 | PADDW | PSUBW | PCGTW | PMAXW
+ * 1 001 | PADDH | PSUBH | PCGTH | PMAXH
+ * 2 010 | PADDB | PSUBB | PCGTB | *
+ * 3 011 | * | * | * | *
+ * 4 100 | PADDSW| PSUBSW| PEXTLW| PPACW
+ * 5 101 | PADDSH| PSUBSH| PEXTLH| PPACH
+ * 6 110 | PADDSB| PSUBSB| PEXTLB| PPACB
+ * 7 111 | * | * | PEXT5 | PPAC5
+ */
+
+#define MASK_TX79_MMI0(op) (MASK_OP_MAJOR(op) | ((op) & 0x7FF))
+enum {
+ TX79_MMI0_PADDW = (0x00 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PSUBW = (0x01 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PCGTW = (0x02 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PMAXW = (0x03 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PADDH = (0x04 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PSUBH = (0x05 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PCGTH = (0x06 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PMAXH = (0x07 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PADDB = (0x08 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PSUBB = (0x09 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PCGTB = (0x0A << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PADDSW = (0x10 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PSUBSW = (0x11 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PEXTLW = (0x12 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PPACW = (0x13 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PADDSH = (0x14 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PSUBSH = (0x15 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PEXTLH = (0x16 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PPACH = (0x17 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PADDSB = (0x18 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PSUBSB = (0x19 << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PEXTLB = (0x1A << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PPACB = (0x1B << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PEXT5 = (0x1E << 6) | TX79_MMI_CLASS_MMI0,
+ TX79_MMI0_PPAC5 = (0x1F << 6) | TX79_MMI_CLASS_MMI0,
+};
+
/* global register indices */
static TCGv cpu_gpr[32], cpu_PC;
static TCGv cpu_HI[MIPS_DSP_ACC], cpu_LO[MIPS_DSP_ACC];