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comparison trace.c @ 35:01519215ec70

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add watch point 0xfe00 fixed ram area in MMU
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 15 Jul 2018 20:29:55 +0900
parents 7c5379eb406e
children 52f7ad4c2ebb
comparison
equal deleted inserted replaced
34:2032755628dc 35:01519215ec70
56 56
57 typedef struct bp { 57 typedef struct bp {
58 int address; // physical address 58 int address; // physical address
59 int laddr; 59 int laddr;
60 int count; 60 int count;
61 int watch; // watch point
61 struct bp *next; 62 struct bp *next;
62 } BP, *BPTR; 63 } BP, *BPTR;
63 64
64 BPTR breakpoint = 0; 65 BPTR breakpoint = 0;
65 int bpskip = 0; 66 int bpskip = 0;
66 int trskip = 0; 67 int trskip = 0;
67 int stkskip = 0; 68 int stkskip = 0;
68 69
69 int getarg(char *buf, char** next) { 70 int getarg(char *buf, char** next) {
70 return strtol(buf,(char**)next,0); 71 int value = strtol(buf,next,0);
72 for(;next;) {
73 if ( **next == '+' ) {
74 value += strtol(*next+1,next,0);
75 } else if ( **next == '*' ) {
76 value *= strtol(*next+1,next,0);
77 } else if ( **next == '/' ) {
78 value /= strtol(*next+1,next,0);
79 } else if ( **next == '-' ) {
80 value -= strtol(*next+1,next,0);
81 } else if ( **next == '&' ) {
82 value &= strtol(*next+1,next,0);
83 } else if ( **next == '|' ) {
84 value |= strtol(*next+1,next,0);
85 } else break;
86 }
87 return value;
71 } 88 }
72 89
73 void printhelp(void) 90 void printhelp(void)
74 { 91 {
75 printf( 92 printf(
108 if (bpskip) { // skip unbreak instruction 125 if (bpskip) { // skip unbreak instruction
109 bpskip--; 126 bpskip--;
110 int ppc = paddr(pcreg,mmu); 127 int ppc = paddr(pcreg,mmu);
111 BPTR *prev = &breakpoint; 128 BPTR *prev = &breakpoint;
112 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) { 129 for(BPTR b = breakpoint; b ; prev=&b->next, b=b->next ) {
113 if (ppc==b->address /* || pcreg==b->laddr */) { 130 #ifdef USE_MMU
131 int watch = phymem[b->address];
132 #else
133 int watch = mem[b->address];
134 #endif
135 if (ppc==b->address || b->watch != watch ) {
136 b->watch = watch;
114 if (b->count==-1) { // temporaly break point 137 if (b->count==-1) { // temporaly break point
115 BPTR next = b->next; 138 BPTR next = b->next;
116 free(b); 139 free(b);
117 *prev = next; 140 *prev = next;
118 goto restart0; 141 goto restart0;
136 prog = (char*)phyadr - pcreg; 159 prog = (char*)phyadr - pcreg;
137 #endif 160 #endif
138 do_trace(stdout); 161 do_trace(stdout);
139 if (trskip>1) { // show trace and step 162 if (trskip>1) { // show trace and step
140 trskip--; 163 trskip--;
164 int watch; // watch point
141 set_term(escchar); 165 set_term(escchar);
142 return; 166 return;
143 } 167 }
144 restart: 168 restart:
145 printf("v09>"); 169 printf("v09>");
179 bpskip = -1; 203 bpskip = -1;
180 goto restart; 204 goto restart;
181 case 'B': // break point list 205 case 'B': // break point list
182 for(BPTR bp = breakpoint; bp ; bp = bp->next) { 206 for(BPTR bp = breakpoint; bp ; bp = bp->next) {
183 #ifdef USE_MMU 207 #ifdef USE_MMU
184 printf("%x %x %d\n", bp->laddr, bp->address, bp->count); 208 printf("0x%x p=0x%x c=%d w=0x%x\n", bp->laddr, bp->address, bp->count, bp->watch);
185 #else 209 #else
186 printf("%x %d\n", bp->address, bp->count); 210 printf("0x%x c=%d w=0x%x\n", bp->address, bp->count,bp->watch);
187 #endif 211 #endif
188 } 212 }
189 goto restart; 213 goto restart;
190 case 'd': // delte break point list 214 case 'd': // delte break point list
191 if (s[1]) { 215 if (s[1]) {
358 bp->next = breakpoint; 382 bp->next = breakpoint;
359 breakpoint = bp; 383 breakpoint = bp;
360 bp->count = count; 384 bp->count = count;
361 bp->laddr = adr; 385 bp->laddr = adr;
362 bp->address = paddr(adr,mmu); 386 bp->address = paddr(adr,mmu);
387 #ifdef USE_MMU
388 bp->watch = *mem0(phymem,adr,mmu);
389 #else
390 bp->watch = mem[adr];
391 #endif
363 } 392 }
364 393
365 int nexti(void) { 394 int nexti(void) {
366 #ifdef USE_MMU 395 #ifdef USE_MMU
367 int op1 = *mem0(phymem,pcreg,mmu); 396 int op1 = *mem0(phymem,pcreg,mmu);