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Test that invalid lX opcodes trigger mini-rv32 internal core error

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Toby Jaffey 2025-12-14 01:21:42 +00:00
parent fe51154698
commit a5305d64dc
5 changed files with 54 additions and 1 deletions
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3
test/Makefile
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@ -5,7 +5,8 @@ TESTS = \
syscall_args \ syscall_args \
meter \ meter \
extram \ extram \
badcode badcode \
invalid_opcodes
RUNCMD = $(foreach TEST,${TESTS},make -C ${TEST} &&) RUNCMD = $(foreach TEST,${TESTS},make -C ${TEST} &&)
CLEANCMD = $(foreach TEST,${TESTS},make -C ${TEST} clean &&) CLEANCMD = $(foreach TEST,${TESTS},make -C ${TEST} clean &&)

2
test/invalid_opcodes/Makefile Normal file
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@ -0,0 +1,2 @@
TOPDIR=../..
include ${TOPDIR}/test/common/makefile.common

2
test/invalid_opcodes/rom/Makefile Normal file
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@ -0,0 +1,2 @@
TOPDIR=../../..
include ${TOPDIR}/test/common/makefile-rom.common

5
test/invalid_opcodes/rom/rom.c Normal file
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@ -0,0 +1,5 @@
#include "uvm32_target.h"
void main(void) {
}

43
test/invalid_opcodes/test/tests.c Normal file
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@ -0,0 +1,43 @@
#include <string.h>
#include "unity.h"
#include "uvm32.h"
#include "../common/uvm32_common_custom.h"
#include "rom-header.h"
static uvm32_state_t vmst;
static uvm32_evt_t evt;
void setUp(void) {
}
void tearDown(void) {
}
void test_invalid_opcode_rd_extram(void) {
// https://www.cs.sfu.ca/~ashriram/Courses/CS295/assets/notebooks/RISCV/RISCV_CARD.pdf
// lb,lbu etc only have funct3 values of 0,1,2,4,5
uint8_t bad_funct3_3[] = {
0xb7, 0x0f, 0x00, 0x10, // lui t6,0x10000
0x83, 0xB2, 0x0f, 0x00 // l? t0,0(t6)
};
uvm32_init(&vmst);
uvm32_load(&vmst, bad_funct3_3, 8);
uvm32_run(&vmst, &evt, 100);
TEST_ASSERT_EQUAL(evt.typ, UVM32_EVT_ERR);
TEST_ASSERT_EQUAL(evt.data.err.errcode, UVM32_ERR_INTERNAL_CORE);
uint8_t bad_funct3_6[] = {
0xb7, 0x0f, 0x00, 0x10, // lui t6,0x10000
0x83, 0xE2, 0x0f, 0x00 // l? t0,0(t6)
};
uvm32_init(&vmst);
uvm32_load(&vmst, bad_funct3_6, 8);
uvm32_run(&vmst, &evt, 100);
TEST_ASSERT_EQUAL(evt.typ, UVM32_EVT_ERR);
TEST_ASSERT_EQUAL(evt.data.err.errcode, UVM32_ERR_INTERNAL_CORE);
}