Revision of assembly-live-0.s

Lucas Teske ревизий этого фрагмента 5 years ago. К ревизии

1 file changed, 86 insertions

assembly-live-0.s(файл создан)

		@@ -0,0 +1,86 @@
1	+	; A B C D = 8 bits
2	+	; IP = Instruction Pointer = 16 bits = 65535
3	+	; SP = Stack Pointer = 16 bits = 65535
4	+	; \| AX \|
5	+	; \| A \|
6	+	; AX = 0000 0000 0000 0000
7	+	; AX, BX, CX, DX = 16 bits
8	+	; \| EAX \|
9	+	; \| AX \|
10	+	; \| Ah \| Al \|
11	+	; \| A \|
12	+	; EAX = 0000 0000 0000 0000 0000 0000 0000 0000
13	+	; EAX, EBX, ECX, EDX = 32 bits
14	+	; EIP = Enhanced IP = 32 bits
15	+	; ESP = Enhanced SP = 32 bits
16	+	;
17	+	; ----- PAE - Physical Address Extension ------
18	+	;
19	+	;
20	+	; RAX, RBX, RCX, RDX = 64 bits
21	+	; RIP = Register IP = 64 bits
22	+	; RSP = Register SP = 64 bits
23	+
24	+
25	+	mov EAX, EBX ; A = B
26	+	mov EBX, EAX ; B = A
27	+	add EAX, EBX ; A = A + B
28	+	sub EAX, EBX ; A = A - B
29	+	inc EAX ; A = A + 1
30	+	inc AX
31	+	inc A
32	+	dec EBX ; B = B - 1
33	+
34	+	; RAX = int64 = 64 bits = 1844674407370955161
35	+	; 88 × 10 ^ 27 m
36	+	; 5 × 10 ^ -5 m
37	+	; /\ /\ /\
38	+	; Mantissa Base Expoente
39	+	; 1 sinal 57 bits mantissa - 1 sinal 5 bits de expoente
40	+	; 88 25 ( -31 a 31 )
41	+	; ponto flutuante decimal => a * 10 ^ b
42	+	;
43	+	;
44	+	; 5 * 2 = 10 ; 0101 * 0000 0010 = 0000 1010
45	+	; 5 * 4 = 20 ; 0101 * 0000 0100 = 0001 0100
46	+	; 5 * 8 = 40 ; 0101 * 0000 1000 = 0010 1000
47	+	; 5 * 16 = 80 ; 0101 * 0001 0000 = 0101 0000
48	+	; 5 / 2 = 2 ; 0101 / 0000 0010 = 0000 0010
49	+
50	+	; float = 32 bit
51	+	; Base 2
52	+	; ponto flutuante binario => a * 2 ^ b
53	+	;
54	+	;
55	+	; Mantissa 8 bits = 1 bit sinal, 7 bits numero
56	+	; -128 a 127
57	+	; Expoente 4 bits = 1 bit sinal, 3 bits numero
58	+	; -8 a 7
59	+	; \| Matissa \| Expoente \| Valor
60	+	; \|S\| Numero \|S\|
61	+	; 0 0000001 0 000 \| 1 * 10 ^ 0 = 1
62	+	; 0 \| 12 * 10 ^ -2 = 0.12
63	+	; 0 1 011 \|128 * 10 ^ -3 = 0.128
64	+	; \| 13 * 10 ^ -2 = 0.13
65	+	; 0 0101001 1 010 \| 25 * 10 ^ -2 = 0.25
66	+	; 0 1001011 1 010 \| 75 * 10 ^ -2 = 0.75
67	+	; 0 0000101 1 001 \| 5 * 10 ^ -1 = 0.5
68	+	; 0 0000010 0 000 \| 2 * 10 ^ 0 = 2
69	+	; a * 0.5 == a / 2
70	+	; multiplicacoes em FLOAT = ~3
71	+	; divisoes em FLOAT = ~7
72	+	; ´
73	+
74	+	; MMX, SSE, AVX, 3DNOW, NEON
75	+	; XMM0 = 4 x 64 bits = 4 double
76	+	; XMM0 = 8 x 32 bits = 8 float
77	+	; XMM0 - XMM15 = 16 FUCKING REGISTRADORES DE 256 BITS
78	+	;
79	+	; XMM0 + XMM1 == 1 instrução
80	+	;
81	+	; XMM0[0], XMM0[1], XMM0[2], XMM0[3]
82	+	; * XMM1[0], XMM1[1], XMM1[2], XMM1[3]
83	+	; =
84	+	; FMA = Fused-multiply-add
85	+	; XMM0 * XMM1 + XMM2 =>> ONE FUCKING INSTRUCTION!!!
86	+	; SIMD = Single Instruction Multiple Data

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