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Attempt to enable RV32 C extension. c.lw and c.sw are definitely broken somehow wrt MMIO memory.

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Examples built using C extensions, many fail in strange ways
This commit is contained in:
Toby Jaffey 2025-12-17 15:43:15 +00:00
parent 652094c289
commit adec69e1d7
17 changed files with 132 additions and 76 deletions
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50
test/opcodes/test/tests.c
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@ -17,31 +17,31 @@ 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);
}
//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);
//}
void test_auipc(void) {