From d0a84535eb6f1fcd0edd8928ace16dcdbe0c48be Mon Sep 17 00:00:00 2001
From: Yunsup Lee <yunsup@cs.berkeley.edu>
Date: Tue, 5 Nov 2013 21:01:34 -0800
Subject: correctly trap when SR_EA is disabled

---
 riscv/decode.h | 1 +
 riscv/rocc.cc  | 1 +
 riscv/trap.h   | 1 +
 3 files changed, 3 insertions(+)

(limited to 'riscv')

diff --git a/riscv/decode.h b/riscv/decode.h
index 7cf7eac..3fc2be7 100644
--- a/riscv/decode.h
+++ b/riscv/decode.h
@@ -145,6 +145,7 @@ private:
 #else
 # define require_fp if(unlikely(!(p->get_state()->sr & SR_EF))) throw trap_fp_disabled()
 #endif
+#define require_accelerator if(unlikely(!(p->get_state()->sr & SR_EA))) throw trap_accelerator_disabled()
 
 #define cmp_trunc(reg) (reg_t(reg) << (64-xprlen))
 #define set_fp_exceptions ({ p->set_fsr(p->get_state()->fsr | \
diff --git a/riscv/rocc.cc b/riscv/rocc.cc
index 7988c01..e51aee5 100644
--- a/riscv/rocc.cc
+++ b/riscv/rocc.cc
@@ -5,6 +5,7 @@
 #define customX(n) \
   static reg_t c##n(processor_t* p, insn_t insn, reg_t pc) \
   { \
+    require_accelerator; \
     rocc_t* rocc = static_cast<rocc_t*>(p->get_extension()); \
     rocc_insn_union_t u; \
     u.i = insn; \
diff --git a/riscv/trap.h b/riscv/trap.h
index 9a1a2f9..bd7e0ee 100644
--- a/riscv/trap.h
+++ b/riscv/trap.h
@@ -54,5 +54,6 @@ DECLARE_MEM_TRAP(8, load_address_misaligned)
 DECLARE_MEM_TRAP(9, store_address_misaligned)
 DECLARE_MEM_TRAP(10, load_access_fault)
 DECLARE_MEM_TRAP(11, store_access_fault)
+DECLARE_TRAP(12, accelerator_disabled)
 
 #endif
-- 
cgit v1.1


From 15ca044738d478f427300d211fe50e9a1b1b5ac6 Mon Sep 17 00:00:00 2001
From: Yunsup Lee <yunsup@cs.berkeley.edu>
Date: Tue, 5 Nov 2013 21:03:23 -0800
Subject: add accelerator disabled cause

---
 riscv/pcr.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'riscv')

diff --git a/riscv/pcr.h b/riscv/pcr.h
index b90884b..6c6d986 100644
--- a/riscv/pcr.h
+++ b/riscv/pcr.h
@@ -59,6 +59,7 @@
 #define CAUSE_MISALIGNED_STORE 9
 #define CAUSE_FAULT_LOAD 10
 #define CAUSE_FAULT_STORE 11
+#define CAUSE_ACCELERATOR_DISABLED 12
 
 // page table entry (PTE) fields
 #define PTE_V    0x001 // Entry is a page Table descriptor
-- 
cgit v1.1


From ee7867e79ed0a80e23b3b1863adcb0dfd8427e1b Mon Sep 17 00:00:00 2001
From: Yunsup Lee <yunsup@cs.berkeley.edu>
Date: Thu, 21 Nov 2013 14:42:32 -0800
Subject: fix slli/slliw encoding bug

---
 riscv/opcodes.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'riscv')

diff --git a/riscv/opcodes.h b/riscv/opcodes.h
index 2a42554..aa2a38c 100644
--- a/riscv/opcodes.h
+++ b/riscv/opcodes.h
@@ -5,7 +5,7 @@ DECLARE_INSN(fmin_d, 0xc2000053, 0xfe00707f)
 DECLARE_INSN(amomax_d, 0xa000302f, 0xf800707f)
 DECLARE_INSN(bltu, 0x6063, 0x707f)
 DECLARE_INSN(fmin_s, 0xc0000053, 0xfe00707f)
-DECLARE_INSN(slliw, 0x4000101b, 0xfe00707f)
+DECLARE_INSN(slliw, 0x101b, 0xfe00707f)
 DECLARE_INSN(lb, 0x3, 0x707f)
 DECLARE_INSN(fcvt_s_wu, 0x78000053, 0xfff0007f)
 DECLARE_INSN(fcvt_d_l, 0x62000053, 0xfff0007f)
@@ -113,7 +113,7 @@ DECLARE_INSN(remu, 0x2007033, 0xfe00707f)
 DECLARE_INSN(flw, 0x2007, 0x707f)
 DECLARE_INSN(remw, 0x200603b, 0xfe00707f)
 DECLARE_INSN(sltu, 0x3033, 0xfe00707f)
-DECLARE_INSN(slli, 0x40001013, 0xfc00707f)
+DECLARE_INSN(slli, 0x1013, 0xfc00707f)
 DECLARE_INSN(amoor_w, 0x4000202f, 0xf800707f)
 DECLARE_INSN(beq, 0x63, 0x707f)
 DECLARE_INSN(fld, 0x3007, 0x707f)
-- 
cgit v1.1