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# See LICENSE for license details.
#*****************************************************************************
# minstret_overflow.S
#-----------------------------------------------------------------------------
#
# Test if overflow of instret is handled correctly
#
#include "riscv_test.h"
#include "test_macros.h"
RVTEST_RV64M
RVTEST_CODE_BEGIN
# The value written to instret will be the value read by the following
# instruction (i.e. the increment is suppressed)
TEST_CASE(2, a0, 0, csrwi minstret, 0; csrr a0, minstret);
#if __riscv_xlen == 32
# Writes to instreth are considered writes to instret and so also
# suppress the increment
TEST_CASE(3, a0, 0, li t0, 0xffffffff; csrw minstret, t0; csrw minstreth, t0; nop; csrr a0, minstret);
TEST_CASE(4, a0, 0, csrr a0, minstreth);
#endif
2:
TEST_PASSFAIL
.align 2
.global mtvec_handler
mtvec_handler:
j fail
RVTEST_CODE_END
.data
RVTEST_DATA_BEGIN
TEST_DATA
RVTEST_DATA_END
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