Hi all,
Current QEMU MIPS POOL32AXF encoding comes from microMIPS32
and microMIPS32 DSP. Add comment here to help reading.
Please review, thanks.
Regards,
chenwj
Signed-off-by: Chen Wei-Ren <che...@iis.sinica.edu.tw>
---
target-mips/translate.c | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 01b48fa..9d4b2c3 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -10359,6 +10359,19 @@ enum {
/* POOL32AXF encoding of minor opcode field extension */
+/*
+ * 1. MIPS Architecture for Programmers Volume II-B:
+ * The microMIPS32 Instruction Set (Revision 3.05)
+ *
+ * Table 6.5 POOL32Axf Encoding of Minor Opcode Extension Field
+ *
+ * 2. MIPS Architecture for Programmers VolumeIV-e:
+ * The MIPS DSP Application-Specific Extension
+ * to the microMIPS32 Architecture (Revision 2.34)
+ *
+ * Table 5.5 POOL32Axf Encoding of Minor Opcode Extension Field
+ */
+
enum {
/* bits 11..6 */
TEQ = 0x00,
@@ -10371,6 +10384,8 @@ enum {
MFC0 = 0x03,
MTC0 = 0x0b,
+ /* begin of microMIPS32 DSP */
+
/* bits 13..12 for 0x01 */
MFHI_ACC = 0x0,
MFLO_ACC = 0x1,
@@ -10387,6 +10402,8 @@ enum {
MULT_ACC = 0x0,
MULTU_ACC = 0x1,
+ /* end of microMIPS32 DSP */
+
/* bits 15..12 for 0x2c */
SEB = 0x2,
SEH = 0x3,
--
1.7.3.4
