asar coverage - build #76

src/asar/
File: src/asar/arch-superfx.cpp
Date: 2024-01-18 11:25:05
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1 #include "asar.h"
2 #include "errors.h"
3 #include "assembleblock.h"
4 #include "asar_math.h"
5
6 #include "arch-shared.h"
7
8 #define write1 write1_pick
9
10 ✗ void asinit_superfx()
11 {
12 ✗ }
13
14 6 void asend_superfx()
15 {
16 6 }
17
18 267 static int64_t getnum_ck(const char* math)
19 {
20
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 267 return pass == 2 ? getnum(math) : 0;
21 }
22
23 642 static void range(int min, int mid, int max)
24 {
25
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 642 if (mid<min || mid>max) asar_throw_error(0, error_type_block, error_id_superfx_invalid_register, min, max);
26 642 }
27
28 enum reg_t {
29 reg_parr,
30 reg_r,
31 reg_hash,
32 };
33 5166 static bool getreg(const char * par, int * reg, reg_t type)
34 {
35 int ret;
36 5166 *reg=-1;
37
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 5166 if (type==reg_parr && *par++!='(') return false;
38
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 3798 if (type==reg_parr && to_lower(*par++)!='r') return false;
39
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 3600 if (type==reg_r && to_lower(*par++)!='r') return false;
40
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 2670 if (type==reg_hash && *par++!='#') return false;
41
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 1698 if (!is_digit(par[0])) return false;
42
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 1698 if (is_digit(par[1]))
43 {
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 600 if (par[0]!='1' || par[1]>'5') return false;
45 600 ret=par[1]-'0'+10;
46 600 par+=2;
47 }
48 else
49 {
50 1098 ret=par[0]-'0';
51 1098 par+=1;
52 }
53
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 1698 if (type==reg_parr && *par++!=')') return false;
54
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 1698 if (*par) return false;
55 1698 *reg=ret;
56 1698 return true;
57 }
58
59 //for LMS and SMS short addressing forms, check range & evenness
60 96 static bool check_short_addr(int num) {
61
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 96 if (num % 2 > 0 || num < 0 || num > 0x1FE) {
62 ✗ asar_throw_error(0, error_type_block, error_id_superfx_invalid_short_address, hex((unsigned int)num).data());
63 ✗ return false;
64 }
65 return true;
66 }
67
68 1827 bool asblock_superfx(char** word, int numwords)
69 {
70 #define is(test) (!stricmp(word[0], test))
71 char * par= nullptr;
72
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 1827 if (word[1]) par= duplicate_string(word[1]);
73 autoptr<char*> parptr=par;
74 if(0);
75
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 1827 else if (assemblemapper(word, numwords)) return true;
76
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 1827 else if (numwords==1)
77 {
78 #define op(from, to) if (is(from)) { write1(to); return true; }
79 #define op3d(from, to) if (is(from)) { write1(0x3D); write1(to); return true; }
80 #define op3e(from, to) if (is(from)) { write1(0x3E); write1(to); return true; }
81 #define op3f(from, to) if (is(from)) { write1(0x3F); write1(to); return true; }
82
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 105 op("STOP", 0x00);
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 102 op("NOP", 0x01);
84
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 90 op("CACHE", 0x02);
85
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 87 op("LSR", 0x03);
86
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 84 op("ROL", 0x04);
87
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 81 op("LOOP", 0x3C);
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 78 op("ALT1", 0x3D);
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 75 op("ALT2", 0x3E);
90
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 72 op("ALT3", 0x3F);
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 69 op("PLOT", 0x4C);
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 66 op("SWAP", 0x4D);
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 63 op("COLOR", 0x4E);
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 60 op("NOT", 0x4F);
95
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 57 op("MERGE", 0x70);
96
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 54 op("SBK", 0x90);
97
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 51 op("SEX", 0x95);
98
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 48 op("ASR", 0x96);
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 45 op("ROR", 0x97);
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 42 op("LOB", 0x9E);
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 39 op("FMULT", 0x9F);
102
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 36 op("HIB", 0xC0);
103
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 33 op("GETC", 0xDF);
104
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 30 op("GETB", 0xEF);
105
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 27 op3d("RPIX", 0x4C);
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 24 op3d("CMODE", 0x4E);
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 21 op3d("DIV2", 0x96);
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 18 op3d("LMULT", 0x9F);
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 15 op3d("GETBH", 0xEF);
110
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 12 op3e("RAMB", 0xDF);
111
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 9 op3e("GETBL", 0xEF);
112
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 6 op3f("ROMB", 0xDF);
113
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 3 op3f("GETBS", 0xEF);
114 #undef op
115 #undef op3d
116 #undef op3e
117 #undef op3f
118 return false;
119 }
120
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 1722 else if (numwords==2)
121 {
122 1722 string tmp=par;
123 int numwordsinner;
124 1722 autoptr<char*> parcpy= duplicate_string(par);
125
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 1722 autoptr<char**> arg=qpsplit(parcpy, ",", &numwordsinner);
126 bool ret=false;
127 #define ok() ret=true
128 #define op(op) if (is(op)) ok()
129 #define w3d(val) ,write1(0x3D) w(val)
130 #define w3e(val) ,write1(0x3E) w(val)
131 #define w3f(val) ,write1(0x3F) w(val)
132
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 1722 if (numwordsinner ==1)
133 {
134 #define w(val) ,write1((unsigned int)(val+reg))
135 #define reg_range(min, max) ,range(min, reg, max)
136 int reg;
137
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 1404 if (getreg(par, &reg, reg_r))
138 {
139
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 786 op("TO") w(0x10);
140
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 786 op("WITH") w(0x20);
141
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 786 op("ADD") w(0x50);
142
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 786 op("SUB") w(0x60);
143
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 786 op("AND") reg_range(1, 15) w(0x70);
144
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 786 op("MULT") w(0x80);
145
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 786 op("JMP") reg_range(8, 13) w(0x90);
146
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 786 op("FROM") w(0xB0);
147
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 786 op("OR") reg_range(1, 15) w(0xC0);
148
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 786 op("INC") reg_range(0, 14) w(0xD0);
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 786 op("DEC") reg_range(0, 14) w(0xE0);
150
151
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 786 op("ADC") w3d(0x50);
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 786 op("SBC") w3d(0x60);
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 786 op("BIC") reg_range(1, 15) w3d(0x70);
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 786 op("UMULT") w3d(0x80);
155
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 786 op("LJMP") reg_range(8, 13) w3d(0x90);
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 786 op("XOR") reg_range(1, 15) w3d(0xC0);
157
158
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 786 op("CMP") w3f(0x60);
159 }
160
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 1404 if (getreg(par, &reg, reg_hash))
161 {
162
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 432 op("LINK") reg_range(1, 4) w(0x90);
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 432 op("ADD") w3e(0x50);
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 432 op("SUB") w3e(0x60);
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 432 op("AND") reg_range(1, 15) w3e(0x70);
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 432 op("MULT") w3e(0x80);
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 432 op("OR") reg_range(1, 15) w3e(0xC0);
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 432 op("ADC") w3f(0x50);
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 432 op("BIC") reg_range(1, 15) w3f(0x70);
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 432 op("UMULT") w3f(0x80);
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 432 op("XOR") reg_range(1, 15) w3f(0xC0);
174 }
175
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 1404 if (getreg(par, &reg, reg_parr))
176 {
177
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 144 op("STW") reg_range(0, 11) w(0x30);
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 144 op("LDW") reg_range(0, 11) w(0x40);
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 144 op("STB") reg_range(0, 11) w3d(0x30);
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 144 op("LDB") reg_range(0, 11) w3d(0x40);
181 }
182 #undef w
183 #undef reg_range
184 int byte=-1;
185 #define br(name, val) if (is(name)) byte=val;
186
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 1404 br("BRA", 0x05);
187
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 1404 br("BGE", 0x06);
188
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 1404 br("BLT", 0x07);
189
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 1404 br("BNE", 0x08);
190
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 1404 br("BEQ", 0x09);
191
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 1404 br("BPL", 0x0A);
192
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 1404 br("BMI", 0x0B);
193
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 1404 br("BCC", 0x0C);
194
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 1404 br("BCS", 0x0D);
195
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 1404 br("BVC", 0x0E);
196
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 1404 br("BVS", 0x0F);
197 #undef br
198
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 1401 if (byte!=-1)
199 {
200 ret=true;
201
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 33 int len=getlen(par);
202
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 33 unsigned int num=getnum_ck(par);
203
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 33 if (len==1)
204 {
205 ✗ write1((unsigned int)byte); write1(num);
206 }
207 else
208 {
209
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 33 int pos=(int)getnum_ck(par)-((snespos&0xFFFFFF)+2);
210
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 33 write1((unsigned int)byte); write1((unsigned int)pos);
211
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 33 if (pass==2 && (pos<-128 || pos>127))
212 {
213 ✗ asar_throw_error(2, error_type_block, error_id_relative_branch_out_of_bounds, dec(pos).data());
214 }
215 }
216 }
217 }
218
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 1722 if (numwordsinner==2)
219 {
220 #define w(val) ,write1((unsigned int)(val))
221 318 int reg1; bool isreg1=getreg(arg[0], &reg1, reg_r);
222 318 int reg2; bool isreg2=getreg(arg[1], &reg2, reg_r);
223
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 318 if (isreg1)
224 {
225
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 213 if (isreg2)
226 {
227
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 6 op("MOVE") w(0x20+reg2) w(0x10+reg1);
228
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 6 op("MOVES") w(0x20+reg1) w(0xB0+reg2);
229 }
230
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 213 if (arg[1][0]=='#')
231 {
232
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 99 unsigned int num=getnum_ck(arg[1]+1);
233 99 num&=0xFFFF;
234
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 99 op("IBT") w(0xA0+reg1) w(num);
235
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 99 op("IWT") w(0xF0+reg1) w(num) w(num>>8);
236
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 99 if (num<0x80 || num>=0xFF80)
237 {
238
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 99 op("MOVE") w(0xA0+reg1) w(num);
239 }
240 else
241 {
242 ✗ op("MOVE") w(0xF0+reg1) w(num) w(num>>8);
243 }
244 }
245
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 213 if (getreg(arg[1], &reg2, reg_parr))
246 {
247
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 6 if (reg1==0)
248 {
249
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 6 op("MOVEB") w(0x3D) w(0x40+reg2);
250
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 6 op("MOVEW") w(0x40+reg2);
251 }
252 else
253 {
254 ✗ op("MOVEB") w(0x10+reg1) w(0x3D) w(0x40+reg2);
255 ✗ op("MOVEW") w(0x10+reg1) w(0x40+reg2);
256 }
257 }
258
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 207 else if (arg[1][0]=='(')
259 {
260 char * endpar=strchr(arg[1], ')');
261
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 99 if (!endpar || endpar[1]) return false;
262
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 99 unsigned int num=getnum_ck(arg[1]);
263
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 99 op("LM") w(0x3D) w(0xF0+reg1) w(num) w(num>>8);
264
265
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 99 if (is("LMS")) {
266 ok();
267
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 48 if (check_short_addr((int)num))
268 {
269
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 48 ok() w(0x3D) w(0xA0+reg1) w(num>>1);
270 }
271 }
272
273
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 99 if (num&1 || num>=0x200)
274 {
275 ✗ op("MOVE") w(0x3D) w(0xF0+reg1) w(num) w(num>>8);
276 }
277 else
278 {
279
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 99 op("MOVE") w(0x3D) w(0xA0+reg1) w(num);
280 }
281 }
282
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 213 if (is("LEA"))
283 {
284
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 3 unsigned int num=getnum_ck(arg[1]);
285
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 3 ok() w(0xF0+reg1) w(num) w(num>>8);
286 }
287 }
288
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 105 else if (isreg2)
289 {
290
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 105 if (getreg(arg[0], &reg1, reg_parr))
291 {
292
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 6 if (reg1==0)
293 {
294
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 6 op("MOVEB") w(0x3D) w(0x30+reg2);
295
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 6 op("MOVEW") w(0x30+reg2);
296 }
297 else
298 {
299 ✗ op("MOVEB") w(0xB0+reg1) w(0x3D) w(0x30+reg2);
300 ✗ op("MOVEW") w(0xB0+reg1) w(0x30+reg2);
301 }
302 }
303
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 99 else if (arg[0][0]=='(')
304 {
305 char * endpar=strchr(arg[0], ')');
306
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 99 if (!endpar || endpar[1]) return false;
307
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 99 unsigned int num=getnum(arg[0]);
308
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 99 op("SM") w(0x3E) w(0xF0+reg2) w(num) w(num>>8);
309
310
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 99 if (is("SMS"))
311 {
312 ok();
313
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 48 if (check_short_addr((int)num))
314 {
315
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 48 ok() w(0x3E) w(0xA0+reg2) w(num>>1);
316 }
317 }
318
319
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 99 if (num&1 || num>=0x200)
320 {
321 ✗ op("MOVE") w(0x3E) w(0xF0+reg2) w(num) w(num>>8);
322 }
323 else
324 {
325
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 99 op("MOVE") w(0x3E) w(0xA0+reg2) w(num);
326 }
327 }
328 }
329 }
330 #undef ok
331 #undef op
332 #undef w3d
333 #undef w3e
334 #undef w3f
335 1722 return ret;
336 1722 }
337 return false;
338 1827 }
339