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authorFlavian Kaufmann <flavian@flaviankaufmann.ch>2024-05-01 16:47:56 +0200
committerFlavian Kaufmann <flavian@flaviankaufmann.ch>2024-05-01 16:47:56 +0200
commit2a3951a25ffe28342177e29cf97125ed89ca59a4 (patch)
treec34e152c2c734cb9f8d37da004e9af41e4126348 /tests/generate_alu_tests.c
parent62fec7789b516561903358a29b45bd4a6746861f (diff)
downloadriscv_cpu-2a3951a25ffe28342177e29cf97125ed89ca59a4.tar.gz
riscv_cpu-2a3951a25ffe28342177e29cf97125ed89ca59a4.zip
added make target for testvec generation
Diffstat (limited to 'tests/generate_alu_tests.c')
-rw-r--r--tests/generate_alu_tests.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/tests/generate_alu_tests.c b/tests/generate_alu_tests.c
deleted file mode 100644
index 39de43e..0000000
--- a/tests/generate_alu_tests.c
+++ /dev/null
@@ -1,112 +0,0 @@
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-
-typedef enum {
- ADD = 0b0000,
- SUB = 0b0001,
- SLT = 0b0011,
-
- AND = 0b0100,
- OR = 0b0101,
- XOR = 0b0110,
-
- SLL = 0b1000,
- SRL = 0b1001,
- SRA = 0b1011,
-} OP;
-
-void test_op(OP op, uint32_t a, uint32_t b) {
- uint32_t result;
- bool zero;
-
- switch (op) {
- case ADD:
- result = a + b;
- break;
- case SUB:
- result = a - b;
- break;
- case SLT:
- result = (int32_t)a < (int32_t)b;
- break;
-
- case AND:
- result = a & b;
- break;
- case OR:
- result = a | b;
- break;
- case XOR:
- result = a ^ b;
- break;
-
- case SLL:
- result = a << b % 32;
- break;
- case SRL:
- result = a >> b % 32;
- break;
- case SRA:
- result = ((int32_t)a) >> b % 32;
- break;
- }
-
- zero = result == 0;
-
- printf("%01X__%08X_%08X__%08X_%01X\n", op & 0x0f, a, b, result, zero);
-}
-
-void test_op_random(OP op, int num) {
- for (int i = 0; i < num; ++i) {
- uint32_t a = (rand() << 16) | rand();
- uint32_t b = (rand() << 16) | rand();
- test_op(op, a, b);
- }
-}
-
-int main(int argc, const char *argv[]) {
- srand(time(NULL));
-
- test_op_random(ADD, 1000);
- test_op(ADD, 0x00000000, 0x00000000);
- test_op(ADD, 0xffffffff, 0xffffffff);
- test_op(ADD, 0xffffffff, 0x00000001);
- test_op_random(SUB, 1000);
- test_op(SUB, 0xffffffff, 0xffffffff);
- test_op_random(SLT, 1000);
- test_op(SLT, 0x8fffffff, 0xffffffff);
- test_op(SLT, 0xffffffff, 0x00000001);
- test_op(SLT, 0x00000001, 0xffffffff);
-
- test_op_random(OR, 1000);
- test_op(OR, 0x00000000, 0x00000000);
- test_op(OR, 0xffffffff, 0x00000000);
- test_op(OR, 0x00000000, 0xffffffff);
- test_op(OR, 0xffffffff, 0xffffffff);
- test_op_random(AND, 1000);
- test_op(AND, 0x00000000, 0x00000000);
- test_op(AND, 0xffffffff, 0x00000000);
- test_op(AND, 0x00000000, 0xffffffff);
- test_op(AND, 0xffffffff, 0xffffffff);
- test_op_random(XOR, 1000);
- test_op(XOR, 0x00000000, 0x00000000);
- test_op(XOR, 0xffffffff, 0x00000000);
- test_op(XOR, 0x00000000, 0xffffffff);
- test_op(XOR, 0xffffffff, 0xffffffff);
-
- test_op_random(SLL, 1000);
- test_op(SLL, 0x0000000f, 0x00000004);
- test_op(SLL, 0xffffffff, 0x0000001c);
- test_op(SLL, 0xf0000000, 0x00000002);
- test_op(SLL, 0x01234567, 0x00000001);
- test_op_random(SRL, 1000);
- test_op(SRL, 0xf0000000, 0x0000001c);
- test_op(SRL, 0x0000000f, 0x0000004);
- test_op_random(SRA, 1000);
- test_op(SRA, 0xf0000000, 0x0000001c);
- test_op(SRA, 0x0000000f, 0x0000004);
-
- return 0;
-}