f535537f |
1 | // 7zAsm.S -- ASM macros for arm64 |
2 | // 2021-04-25 : Igor Pavlov : Public domain |
3 | |
4 | #define r0 x0 |
5 | #define r1 x1 |
6 | #define r2 x2 |
7 | #define r3 x3 |
8 | #define r4 x4 |
9 | #define r5 x5 |
10 | #define r6 x6 |
11 | #define r7 x7 |
12 | #define r8 x8 |
13 | #define r9 x9 |
14 | #define r10 x10 |
15 | #define r11 x11 |
16 | #define r12 x12 |
17 | #define r13 x13 |
18 | #define r14 x14 |
19 | #define r15 x15 |
20 | #define r16 x16 |
21 | #define r17 x17 |
22 | #define r18 x18 |
23 | #define r19 x19 |
24 | #define r20 x20 |
25 | #define r21 x21 |
26 | #define r22 x22 |
27 | #define r23 x23 |
28 | #define r24 x24 |
29 | #define r25 x25 |
30 | #define r26 x26 |
31 | #define r27 x27 |
32 | #define r28 x28 |
33 | #define r29 x29 |
34 | #define r30 x30 |
35 | |
36 | #define REG_ABI_PARAM_0 r0 |
37 | #define REG_ABI_PARAM_1 r1 |
38 | #define REG_ABI_PARAM_2 r2 |
39 | |
40 | |
41 | .macro p2_add reg:req, param:req |
42 | add \reg, \reg, \param |
43 | .endm |
44 | |
45 | .macro p2_sub reg:req, param:req |
46 | sub \reg, \reg, \param |
47 | .endm |
48 | |
49 | .macro p2_sub_s reg:req, param:req |
50 | subs \reg, \reg, \param |
51 | .endm |
52 | |
53 | .macro p2_and reg:req, param:req |
54 | and \reg, \reg, \param |
55 | .endm |
56 | |
57 | .macro xor reg:req, param:req |
58 | eor \reg, \reg, \param |
59 | .endm |
60 | |
61 | .macro or reg:req, param:req |
62 | orr \reg, \reg, \param |
63 | .endm |
64 | |
65 | .macro shl reg:req, param:req |
66 | lsl \reg, \reg, \param |
67 | .endm |
68 | |
69 | .macro shr reg:req, param:req |
70 | lsr \reg, \reg, \param |
71 | .endm |
72 | |
73 | .macro sar reg:req, param:req |
74 | asr \reg, \reg, \param |
75 | .endm |
76 | |
77 | .macro p1_neg reg:req |
78 | neg \reg, \reg |
79 | .endm |
80 | |
81 | .macro dec reg:req |
82 | sub \reg, \reg, 1 |
83 | .endm |
84 | |
85 | .macro dec_s reg:req |
86 | subs \reg, \reg, 1 |
87 | .endm |
88 | |
89 | .macro inc reg:req |
90 | add \reg, \reg, 1 |
91 | .endm |
92 | |
93 | .macro inc_s reg:req |
94 | adds \reg, \reg, 1 |
95 | .endm |
96 | |
97 | |
98 | .macro imul reg:req, param:req |
99 | mul \reg, \reg, \param |
100 | .endm |
101 | |
102 | /* |
103 | arm64 and arm use reverted c flag after subs/cmp instructions: |
104 | arm64-arm : x86 |
105 | b.lo / b.cc : jb / jc |
106 | b.hs / b.cs : jae / jnc |
107 | */ |
108 | |
109 | .macro jmp lab:req |
110 | b \lab |
111 | .endm |
112 | |
113 | .macro je lab:req |
114 | b.eq \lab |
115 | .endm |
116 | |
117 | .macro jz lab:req |
118 | b.eq \lab |
119 | .endm |
120 | |
121 | .macro jnz lab:req |
122 | b.ne \lab |
123 | .endm |
124 | |
125 | .macro jne lab:req |
126 | b.ne \lab |
127 | .endm |
128 | |
129 | .macro jb lab:req |
130 | b.lo \lab |
131 | .endm |
132 | |
133 | .macro jbe lab:req |
134 | b.ls \lab |
135 | .endm |
136 | |
137 | .macro ja lab:req |
138 | b.hi \lab |
139 | .endm |
140 | |
141 | .macro jae lab:req |
142 | b.hs \lab |
143 | .endm |
144 | |
145 | |
146 | .macro cmove dest:req, srcTrue:req |
147 | csel \dest, \srcTrue, \dest, eq |
148 | .endm |
149 | |
150 | .macro cmovne dest:req, srcTrue:req |
151 | csel \dest, \srcTrue, \dest, ne |
152 | .endm |
153 | |
154 | .macro cmovs dest:req, srcTrue:req |
155 | csel \dest, \srcTrue, \dest, mi |
156 | .endm |
157 | |
158 | .macro cmovns dest:req, srcTrue:req |
159 | csel \dest, \srcTrue, \dest, pl |
160 | .endm |
161 | |
162 | .macro cmovb dest:req, srcTrue:req |
163 | csel \dest, \srcTrue, \dest, lo |
164 | .endm |
165 | |
166 | .macro cmovae dest:req, srcTrue:req |
167 | csel \dest, \srcTrue, \dest, hs |
168 | .endm |
169 | |
170 | |
171 | .macro MY_ALIGN_16 macro |
172 | .p2align 4,, (1 << 4) - 1 |
173 | .endm |
174 | |
175 | .macro MY_ALIGN_32 macro |
176 | .p2align 5,, (1 << 5) - 1 |
177 | .endm |
178 | |
179 | .macro MY_ALIGN_64 macro |
180 | .p2align 6,, (1 << 6) - 1 |
181 | .endm |