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providedtests.ml
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open Assert
open X86
open Simulator
open Asm
(* These tests are provided by you -- they will be graded manually *)
(* You should also add additional test cases here to help you *)
(* debug your program. *)
(* We implemented the gcd program
It can handle negative numbers, zeroes and positive numbers.
It uses Euclid's algorithm for fast computation.
*)
let gcd a b = [ text "main"
[ Movq, [~$0; ~%Rax]
; Movq, [~$a; ~%Rdi]
; Movq, [~$b; ~%Rsi]
; Cmpq, [~$0; ~%Rdi]
; J Lt, [~$$"fix_Rdi"]
; Cmpq, [~$0; ~%Rsi]
; J Lt, [~$$"fix_Rsi"]
]
; text "loop"
[ Cmpq, [~$0; ~%Rdi]
; J Eq, [~$$"exit"]
; Cmpq, [~$0; ~%Rsi]
; J Eq, [~$$"exit"]
; Cmpq, [~%Rsi; ~%Rdi]
; J Eq, [~$$"done"]
; J Lt, [~$$"lesser"]
; J Gt, [~$$"greater"]
]
; text "fix_Rdi"
[ Negq, [~%Rdi]
; Cmpq, [~$0; ~%Rsi]
; J Lt, [~$$"fix_Rsi"]
]
; text "fix_Rsi"
[ Negq, [~%Rsi]
; Jmp, [~$$"loop"]
]
; text "greater"
[ Subq, [~%Rsi; ~%Rdi]
; Jmp, [~$$"loop"]
]
; text "lesser"
[ Subq, [~%Rdi; ~%Rsi]
; Jmp, [~$$"loop"]
]
; text "done"
[ Movq, [~%Rsi; ~%Rax]
; Jmp, [~$$"exit"]
]
; text "exit"
[ Retq, []
]
]
let test_machine (bs: sbyte list): mach =
let mem = (Array.make mem_size (Byte '\x00')) in
Array.blit (Array.of_list bs) 0 mem 0 (List.length bs);
let regs = Array.make nregs 0L in
regs.(rind Rip) <- mem_bot;
regs.(rind Rsp) <- Int64.sub mem_top 8L;
{ flags = {fo = false; fs = false; fz = false};
regs = regs;
mem = mem
}
let stack_offset (i: quad) : operand = Ind3 (Lit i, Rsp)
let sbyte_list (a: sbyte array) (start: int) : sbyte list =
Array.to_list (Array.sub a start 8)
let leaq = test_machine
[InsB0 (Leaq, [stack_offset 0L; ~%Rax]);InsFrag;InsFrag;InsFrag
]
let incq = test_machine
[InsB0 (Movq, [~$2; ~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Incq, [~%Rax]);InsFrag;InsFrag;InsFrag
]
let decq = test_machine
[InsB0 (Movq, [~$2; ~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Decq, [~%Rax]);InsFrag;InsFrag;InsFrag
]
let notq = test_machine
[InsB0 (Notq, [~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Pushq, [~$1]);InsFrag;InsFrag;InsFrag
;InsB0 (Notq, [stack_offset 0L]);InsFrag;InsFrag;InsFrag
]
let xorq = test_machine
[InsB0 (Xorq, [~$0;~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Pushq, [~$1]);InsFrag;InsFrag;InsFrag
;InsB0 (Xorq, [~$1;stack_offset 0L]);InsFrag;InsFrag;InsFrag
;InsB0 (Xorq, [~$1;stack_offset 0L]);InsFrag;InsFrag;InsFrag
]
let orq = test_machine
[InsB0 (Orq, [~$0;~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Pushq, [~$1]);InsFrag;InsFrag;InsFrag
;InsB0 (Orq, [~$1;stack_offset 0L]);InsFrag;InsFrag;InsFrag
]
let shulk = test_machine
[InsB0 (Movq, [Imm (Lit 0xFFFFFFFFFFFFFFFFL); ~%Rax]); InsFrag; InsFrag; InsFrag
;InsB0 (Shlq, [~$8; ~%Rax]); InsFrag; InsFrag; InsFrag; InsFrag
]
let zork = test_machine
[InsB0 (Movq, [Imm (Lit 0xFFFFFFFFFFFFFFFFL); ~%Rax]); InsFrag; InsFrag; InsFrag
;InsB0 (Movq, [Imm (Lit 0x5555555555555555L); ~%Rbx]); InsFrag; InsFrag; InsFrag
;InsB0 (Xorq, [~%Rbx; ~%Rax]); InsFrag; InsFrag; InsFrag
]
let addq = test_machine
[InsB0 (Movq, [Imm (Lit 0xBA5EBA5EBA11BA5EL); ~%Rax]); InsFrag; InsFrag; InsFrag
;InsB0 (Movq, [Imm (Lit 0x248FF04F04DD3491L); ~%Rbx]); InsFrag; InsFrag; InsFrag
;InsB0 (Addq, [~%Rbx; ~%Rax]); InsFrag; InsFrag; InsFrag
]
let sarq = test_machine
[InsB0 (Movq, [~$1;~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Sarq, [~$1;~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Movq, [~$7;~%Rbx]);InsFrag;InsFrag;InsFrag
;InsB0 (Sarq, [~%Rcx;~%Rcx]);InsFrag;InsFrag;InsFrag
;InsB0 (Movq, [~$(-7);stack_offset 0L]);InsFrag;InsFrag;InsFrag
;InsB0 (Sarq, [~$2;stack_offset 0L]);InsFrag;InsFrag;InsFrag
]
let shrq = test_machine
[InsB0 (Movq, [~$1;~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Shrq, [~$1;~%Rax]);InsFrag;InsFrag;InsFrag
;InsB0 (Movq, [~$7;~%Rbx]);InsFrag;InsFrag;InsFrag
;InsB0 (Shrq, [~%Rcx;~%Rcx]);InsFrag;InsFrag;InsFrag
;InsB0 (Movq, [~$(-7);stack_offset 0L]);InsFrag;InsFrag;InsFrag
;InsB0 (Shrq, [~$2;stack_offset 0L]);InsFrag;InsFrag;InsFrag
]
let add_imm_into_reg = Gradedtests.test_machine
[InsB0 (Addq, [~$1; ~%Rax]);InsFrag;InsFrag;InsFrag]
let add_reg_into_reg = Gradedtests.test_machine
[InsB0 (Addq, [~$1; ~%Rax]);InsFrag;InsFrag;InsFrag;
InsB0 (Addq, [~%Rax; ~%Rbx]);InsFrag;InsFrag;InsFrag]
let add_imm_into_mem = Gradedtests.test_machine
[InsB0 (Addq, [~$1; Ind1 (Lit 0x400038L)]);InsFrag;InsFrag;InsFrag]
let add_reg_into_mem = Gradedtests.test_machine
[InsB0 (Addq, [~$1; ~%Rax]);InsFrag;InsFrag;InsFrag;
InsB0 (Addq, [~%Rax; Ind1 (Lit 0x400038L)]);InsFrag;InsFrag;InsFrag]
let push_then_pop = Gradedtests.test_machine
[InsB0 (Pushq, [~$1]);InsFrag;InsFrag;InsFrag
;InsB0 (Popq, [~%Rax]);InsFrag;InsFrag;InsFrag]
let program_test (p:prog) (ans:int64) () =
let res = assemble p |> load |> run in
if res <> ans
then failwith (Printf.sprintf("Expected %Ld but got %Ld") ans res)
else ()
let machine_test (s:string) (n: int) (m: mach) (f:mach -> bool) () =
for i=1 to n do step m done;
if (f m) then () else failwith ("expected " ^ s)
let provided_tests : suite = [
Test ("Student-Provided Big Test for Part III: Score recorded as PartIIITestCase", [
("gcd420,96", program_test (gcd (124556234) (4222556)) 2L);
]);
Test ("Test cases from Sibner/Mumick",[
("retq sets Rip", machine_test "Rip = 411" 2
begin test_machine
[InsB0 (Pushq, [~$411]); InsFrag;InsFrag;InsFrag;
InsB0 (Retq, []);InsFrag;InsFrag;InsFrag;] end
(fun m -> m.regs.(rind Rip) = 411L);
);
("JMP sets Rip", machine_test "Rip = 1864" 1
begin test_machine
[InsB0 (Jmp, [~$1864]); InsFrag;InsFrag;InsFrag] end
(fun m -> m.regs.(rind Rip) = 1864L)
);
("Callq sets Rip", machine_test "Rip = 1864" 1
begin test_machine
[InsB0 (Callq, [~$1864]); InsFrag;InsFrag;InsFrag] end
(fun m -> m.regs.(rind Rip) = 1864L)
);
("Callq saves Rip + 1 on stack", machine_test "mem(Reg RSP) = mem_bot" 1
begin test_machine
[InsB0 (Callq, [~$1864]); InsFrag;InsFrag;InsFrag;] end
(fun m ->
let sbytes = Array.to_list (Array.sub m.mem (Int64.to_int (Int64.sub m.regs.(rind Rsp) 0x400000L)) 8) in
(int64_of_sbytes sbytes) = (Int64.add mem_bot 4L)
)
);
("Callq sets Rip + 1 after more insns", machine_test "mem(Reg RSP) = mem_bot + 8" 3
begin test_machine
[ InsB0 (Decq, [~%Rax]);InsFrag;InsFrag;InsFrag;
InsB0 (Decq, [~%Rax]);InsFrag;InsFrag;InsFrag;
InsB0 (Callq, [~$1864]); InsFrag;InsFrag;InsFrag;] end
(fun m ->
let sbytes = Array.to_list (Array.sub m.mem (Int64.to_int (Int64.sub m.regs.(rind Rsp) 0x400000L)) 8) in
(int64_of_sbytes sbytes) = (Int64.add mem_bot 12L)
)
);
]);
Test ("Test cases from David", [
("shulk", machine_test "I'm really feelin' it! (Expected 0xFFFFFFFFFFFFFF00L)" 2
shulk (fun m -> m.regs.(rind Rax) = 0xFFFFFFFFFFFFFF00L)
);
("zork", machine_test "Get eaten by a Grue! (Expected 0xAAAAAAAAAAAAAAAAL)" 3
zork (fun m -> m.regs.(rind Rax) = 0xAAAAAAAAAAAAAAAAL)
);
("addq", machine_test "Addque. (Expected 0xDEEEAAADBEEEEEEFL)" 3
addq (fun m -> m.regs.(rind Rax) = 0xDEEEAAADBEEEEEEFL)
)
]);
Test("Test Cases from Max", [
("add 1 into reg", Gradedtests.machine_test "rax=1" 1 add_imm_into_reg
(fun m -> m.regs.(rind Rax) = 1L));
("add reg into reg", Gradedtests.machine_test "rax=1 and rbx=1" 2 add_reg_into_reg
(fun m -> m.regs.(rind Rax) = 1L && m.regs.(rind Rbx) = 1L));
("add imm into mem", Gradedtests.machine_test "0x400038L=1" 1 add_imm_into_mem
(fun m -> begin match map_addr 0x400038L with
| None -> failwith "runtime error"
| Some v -> int64_of_sbytes (Gradedtests.sbyte_list m.mem v) = 1L
end));
("add reg into mem", Gradedtests.machine_test "rax=1 and 0x400038L=1" 2 add_reg_into_mem
(fun m -> begin match map_addr 0x400038L with
| None -> failwith "runtime error"
| Some v -> m.regs.(rind Rax) = 1L &&
int64_of_sbytes (Gradedtests.sbyte_list m.mem v) = 1L
end));
("push and pop 1", Gradedtests.machine_test "rax=1" 2 push_then_pop
(fun m -> m.regs.(rind Rax) = 1L));
]);
Test ("Test Cases From Eric",
[("incr", machine_test "rax=2" 2
begin test_machine
[InsB0 (Incq, [~%Rax]);InsFrag;InsFrag;InsFrag;
InsB0 (Incq, [~%Rax]);InsFrag;InsFrag;InsFrag;] end
(fun m -> m.regs.(rind Rax) = 2L)
);
("decr", machine_test "rax=-2" 2
begin test_machine
[InsB0 (Decq, [~%Rax]);InsFrag;InsFrag;InsFrag;
InsB0 (Decq, [~%Rax]);InsFrag;InsFrag;InsFrag;] end
(fun m -> m.regs.(rind Rax) = -2L)
);
("not", machine_test "rax=1" 2
begin test_machine
[InsB0 (Movq, [~$(-2); ~%Rax]); InsFrag;InsFrag;InsFrag;
InsB0 (Notq, [~%Rax]);InsFrag;InsFrag;InsFrag;] end
(fun m -> m.regs.(rind Rax) = 1L)
)]
);
Test ("Test Cases From Thomas/Max",[
("leaq loads to rax", machine_test "Rax = 2" 1 leaq
(fun m -> m.regs.(rind Rax) = 0x40fff8L)
);
("incq 2 in rax = 3", machine_test "Rax = 3" 2 incq
(fun m -> m.regs.(rind Rax) = 3L)
);
("decq 2 in rax = 1", machine_test "Rax = 1" 2 decq
(fun m -> m.regs.(rind Rax) = 1L)
);
("notq in regs and mem", machine_test "notq 0, notq 1" 3 notq
(fun m -> m.regs.(rind Rax) = Int64.lognot 0L
&& int64_of_sbytes (sbyte_list m.mem (mem_size-16)) =
Int64.lognot 1L)
);
("xorq in regs and mem", machine_test "xorq 0 0, xorq 1 0" 4 xorq
(fun m -> m.regs.(rind Rax) = 0L
&& int64_of_sbytes (sbyte_list m.mem (mem_size-16)) = 1L)
);
("orq in regs and mem", machine_test "orq 0, orq 1" 3 orq
(fun m -> m.regs.(rind Rax) = 0L
&& int64_of_sbytes (sbyte_list m.mem (mem_size-16)) = 1L)
);
("sarq in regs and mem", machine_test "sarq" 6 sarq
(fun m -> m.regs.(rind Rax) = 0L
&& m.regs.(rind Rcx) = 0L
&& int64_of_sbytes (sbyte_list m.mem (mem_size-8)) =
Int64.neg 2L)
);
("shrq in regs and mem", machine_test "shrq" 6 shrq
(fun m -> m.regs.(rind Rax) = 0L
&& m.regs.(rind Rcx) = 0L
&& int64_of_sbytes (sbyte_list m.mem (mem_size-8)) =
4611686018427387902L)
);
]);
]