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.include "macros.inc"
start
test_name SUB_1
mvi r1, 0
mvi r2, 0
sub r3, r1, r2
check_r3 0
test_name SUB_2
mvi r1, 0
mvi r2, 1
sub r3, r1, r2
check_r3 -1
test_name SUB_3
mvi r1, 1
mvi r2, 0
sub r3, r1, r2
check_r3 1
test_name SUB_4
mvi r1, 1
mvi r2, -1
sub r3, r1, r2
check_r3 2
test_name SUB_5
mvi r1, -1
mvi r2, 1
sub r3, r1, r2
check_r3 -2
test_name SUB_6
mvi r1, -1
mvi r2, 0
sub r3, r1, r2
check_r3 -1
test_name SUB_7
mvi r1, 0
mvi r2, -1
sub r3, r1, r2
check_r3 1
test_name SUB_8
mvi r3, 2
sub r3, r3, r3
check_r3 0
test_name SUB_9
mvi r1, 4
mvi r3, 2
sub r3, r1, r3
check_r3 2
test_name SUB_10
mvi r1, 4
mvi r3, 2
sub r3, r3, r1
check_r3 -2
test_name SUB_11
mvi r1, 4
sub r3, r1, r1
check_r3 0
test_name SUB_12
load r1 0x12345678
load r2 0xabcdef97
sub r3, r1, r2
check_r3 0x666666e1
end
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