diff options
| -rw-r--r-- | cpu/os.asm | 221 |
1 files changed, 119 insertions, 102 deletions
@@ -97,109 +97,121 @@ check_input_ret: # ROLE: check that CPU features work correctly ; displays message to serial output # ARGUMENTS: none run_unit_tests: - push RA - - li A testbegin - jal ser_out_msg - - li A test0 - jal ser_out_msg - jal unit_test_0 - li A testfail - jz B t0fail - li A testok -t0fail: - jal ser_out_msg - - li A test1 - jal ser_out_msg - jal unit_test_1 - li A testfail - jz B t1fail - li A testok -t1fail: - jal ser_out_msg - - li A test2 - jal ser_out_msg - jal unit_test_2 - li A testfail - jz B t2fail - li A testok -t2fail: - jal ser_out_msg - - li A test3 - jal ser_out_msg - jal unit_test_3 - li A testfail - jz B t2fail - li A testok -t3fail: - jal ser_out_msg - - pop RA - jr RA + push RA + + li A testbegin + jal ser_out_msg + + move B Z + +unit_test_begin: + li D testlist + add D D B + lw D 0(D) + jz D unit_tests_done + + push B + push D + li A teststr + add A A B + lw A 0(A) + jal ser_out_msg + pop D + jalr D + li A testfail + jz B unit_test_failed + li A testok +unit_test_failed: + jal ser_out_msg + + pop B + addi B B 2 + j unit_test_begin + +unit_tests_done: + pop RA + jr RA + unit_test_0: # Addition / substraction - li B 1 - - li C 12 - li D 44 - add C C D - sei A C 56 - and B B A - - li C 7 - sub C Z C - li D 7 - add C C D - se A C Z - and B B A - - li C 32767 - li D 32767 - add C C D - li D 2 - sub D Z D - se A C D - and B B A - - jr RA + li B 1 + + li C 12 + li D 44 + add C C D + sei A C 56 + and B B A + + li C -7 + li D 7 + add C C D + se A C Z + and B B A + + li C 32767 + li D 32767 + add C C D + li D 2 + sub D Z D + se A C D + and B B A + + jr RA unit_test_1: # Unsigned multiplication - li B 1 - - li C 12 - li D 44 - mulu C C D - move D E - sei A C 528 - and B B A - se A D Z - and B B A - - li C 744 - li D 1244 - mulu C C D - move D E - sei A C 8032 - and B B A - sei A D 14 - and B B A - - jr RA - -unit_test_2: - li B 1 - jr RA -unit_test_3: - li B 1 - jr RA + li B 1 + + li C 12 + li D 44 + mulu C C D + move D E + sei A C 528 + and B B A + se A D Z + and B B A + + li C 744 + li D 1244 + mulu C C D + move D E + sei A C 8032 + and B B A + sei A D 14 + and B B A + + jr RA + +unit_test_2: # Unsigned division + li B 1 + + li C 60 + li D 5 + divu C C D + move D E + sei A C 12 + and B B A + se A D Z + and B B A + + li C 14129 + li D 477 + divu C C D + move D E + sei A C 31 + and B B A + sei A D 272 + and B B A + + jr RA +unit_test_3: # Signed multiplication/division + li B 0 + jr RA # READ-ONLY PROGRAM DATA + +# General strings msghello: ascii "Hello, world!\n" msgtick: @@ -211,20 +223,25 @@ endl: error: ascii "Sorry but I'm to stupid to understand that.\n" +# For unit-tests +testlist: + word unit_test_0 unit_test_1 unit_test_2 unit_test_3 0; +teststr: + word test0 test1 test2 test3 0; testbegin: - ascii "Runing CPU unit tests...\n" + ascii "Runing CPU unit tests...\n" testok: - ascii "OK\n" + ascii "OK\n" testfail: - ascii "FAIL\n" + ascii "FAIL\n" test0: - ascii "Addition/substraction: " + ascii "Addition/substraction: " test1: - ascii "Unsigned multiplication: " + ascii "Unsigned multiplication: " test2: - ascii "Unsigned division: " + ascii "Unsigned division: " test3: - ascii "Signed division/multiplication: " + ascii "Signed multiplication/division: " |