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Add directed Tests for jump instructions (#1933)
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AyoubJalali committed Mar 15, 2024
1 parent 9f228c3 commit 6851499
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53 changes: 53 additions & 0 deletions verif/tests/custom/isacov/jump_test.S
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# Copyright 2024 Thales DIS SAS
#
# Licensed under the Solderpad Hardware Licence, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# SPDX-License-Identifier: Apache-2.0 WITH SHL-2.0
# You may obtain a copy of the License at https://solderpad.org/licenses/
#
# Original Author: Ayoub JALALI (ayoub.jalali@external.thalesgroup.com)

#*****************************************************************************
# jump_test.S
#-----------------------------------------------------------------------------
#

.globl main
main:
# core of the test
la t1, exception_handler
csrw mtvec, t1 ## Load the address of the exception handler into MTVEC
csrw 0x341, zero ## Writing Zero to MEPC CSR
csrw 0x342, zero ## Writing Zero to MCAUSE CSR
#End Handle exceptions

#trying to cover value zero of rs1 with a negative value of imm
jalr t6, zero, -1
#trying to cover value zero of rs1 with a zero value of imm
jalr t6, zero, 0
#trying to cover value zero of rs1 with a positive value of imm
jalr t6, zero, 1
addi t6, t6, 6
li s0, 0x0
#trying to cover value zero of rs1
c.jalr s0
addi t6, t6, 4
#trying to cover value zero of rs1
c.jr s0

#End of test
j test_done

test_done:
li ra, 0
slli ra, ra, 1
addi ra, ra, 1
sw ra, tohost, t5
self_loop: j self_loop

.align 8
exception_handler:
csrr t0, mepc
csrr t0, mcause
csrw mepc, t6
mret
6 changes: 6 additions & 0 deletions verif/tests/testlist_isacov.yaml
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Expand Up @@ -54,3 +54,9 @@
path_var: TESTS_PATH
gcc_opts: "-static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles ../tests/custom/common/syscalls.c ../tests/custom/common/crt.S -I../tests/custom/env -I../tests/custom/common -T ../tests/custom/common/test.ld -lgcc"
asm_tests: <path_var>/custom/isacov/isa_test.S

- test: jump_test
iterations: 1
path_var: TESTS_PATH
gcc_opts: "-static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles ../tests/custom/common/syscalls.c ../tests/custom/common/crt.S -I../tests/custom/env -I../tests/custom/common -T ../tests/custom/common/test.ld -lgcc"
asm_tests: <path_var>/custom/isacov/jump_test.S

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