# For RV64, make sure UXL encodes RV64. (UXL does not exist for RV32.)
#if __riscv_xlen == 64
+ # If running in M mode, use mstatus.MPP to check existence of U mode.
+ # Otherwise, if in S mode, then U mode must exist and we don't need to check.
+#ifdef __MACHINE_MODE
+ li t0, MSTATUS_MPP
+ csrc mstatus, t0
+ csrr t1, mstatus
+ and t0, t0, t1
+ bnez t0, 1f
+#endif
+ # If U mode is present, UXL should be 2 (XLEN = 64-bit)
TEST_CASE(13, a0, SSTATUS_UXL & (SSTATUS_UXL << 1), csrr a0, sstatus; li a1, SSTATUS_UXL; and a0, a0, a1)
+#ifdef __MACHINE_MODE
+ j 2f
+1:
+ # If U mode is not present, UXL should be 0
+ TEST_CASE(14, a0, 0, csrr a0, sstatus; li a1, SSTATUS_UXL; and a0, a0, a1)
+2:
+#endif
#endif
csrwi sscratch, 3
# If so, make sure FP stores have no effect when mstatus.FS is off.
li a1, MSTATUS_FS
csrs mstatus, a1
+#ifdef __riscv_flen
fmv.s.x f0, x0
csrc mstatus, a1
la a1, fsw_data
TEST_CASE(10, a0, 1, fsw f0, (a1); lw a0, (a1));
+#else
+ # Fail if this test is compiled without F but executed on a core with F.
+ TEST_CASE(10, zero, 1)
+#endif
1:
# Figure out if 'U' is set in misa
srli a0, a0, 20 # a0 = a0 >> 20
andi a0, a0, 1 # a0 = a0 & 1
beqz a0, finish # if no user mode, skip the rest of these checks
-#endif
+#endif /* __MACHINE_MODE */
# jump to user land
li t0, SSTATUS_SPP
TEST_PASSFAIL
.align 2
+ .global stvec_handler
stvec_handler:
# Trapping on tests 10-12 is good news.
# Note that since the test didn't complete, TESTNUM is smaller by 1.