void dbg_processReg()
{
char ch;
int regno;
unsigned int val;
int nd;
ch = dbg_getchar();
switch(ch) {
case '?': DispRegs(); break;
default:
if (isdigit(ch)) {
linendx--;
regno = dbg_getDecNumber();
ch = dbg_nextNonSpace();
switch(ch) {
case '?':
DispReg(regno);
return;
case '=':
nd = dbg_getHexNumber(&val);
if (nd > 0) {
regs[regno] = val;
}
return;
default:
return;
}
}
return;
}
}
pascal int dbg_getHexNumber(unsigned int *ad)
{
char ch;
unsigned int num;
int nd; // number of digits
num = 0;
nd = 0;
dbg_nextNonSpace();
linendx--;
while (1) {
ch = dbg_getchar();
if (ch >= '0' && ch <= '9')
num = (num << 4) | (ch - '0');
else if (ch >= 'A' && ch <= 'F')
num = (num << 4) | (ch - 'A' + 10);
else if (ch >= 'a' && ch <= 'f')
num = (num << 4) | (ch - 'a' + 10);
else {
*ad = num;
return nd;
}
nd = nd + 1;
}
}
char dbg_nextSpace()
{
char ch;
do {
ch = dbg_getchar();
if (ch==-1)
break;
} while (ch != ' ');
return ch;
}
char dbg_nextNonSpace()
{
char ch;
while (linendx < 84) {
ch = dbg_getchar();
if (ch!=' ' || ch==-1)
return ch;
}
return -1;
}
void dbg_getDumpFormat()
{
int nn;
char ch;
unsigned int ui;
unsigned int ad;
nn = dbg_getDecNumber(&ui);
if (nn > 0) currep = ui;
ch = dbg_getchar();
switch(ch) {
case 'i':
curfmt = 'i';
nn = dbg_getHexNumber(&ad);
if (nn > 0)
curaddr = ad;
break;
case 's':
curfmt = 's';
nn = dbg_getHexNumber(&ad);
if (nn > 0)
curaddr = ad;
break;
case 'x':
curfmt = 'x';
ch = dbg_getchar();
switch(ch) {
case 'b': cursz = 'b'; muol = 16; break;
case 'c': cursz = 'c'; muol = 8; break;
case 'h': cursz = 'h'; muol = 4; break;
case 'w': cursz = 'w'; muol = 2; break;
default: linendx--;
}
nn = dbg_getHexNumber(&ad);
if (nn > 0) curaddr = ad;
break;
}
}
pascal int dbg_getDecNumber(int *n)
{
int num;
char ch;
int nd;
if (n==(int *)0) return 0;
num = 0;
nd = 0;
while(isdigit(ch=dbg_getchar())) {
num = num * 10 + (ch - '0');
nd++;
}
linendx--;
*n = num;
return nd;
}
/**
* Wait for input
* \param keys pointer to buffer to store inputs
* \param nb_keys max number of keys
* \param ctrl_flags flags to control inputs (DBGIN_ECHO_ON, DBGIN_NUM_ONLY,
* DBGIN_WANT_ESC and DBGIN_WANT_CR can be used)
* \return -1 if ESC, else number of input chars
*/
static int _app_dbg_input(uint8_t *keys, int nb_keys, uint32_t ctrl_flags)
{
uint8_t key;
int i;
for (i = 0; i < nb_keys;) {
if (!dbg_rx_ready()) {
continue;
}
key = dbg_getchar();
if (key == CR) {
if (DBGIN_WANT_CR & ctrl_flags) {
keys[i++] = 0;
break;
}
/* Ignore */
continue;
} else if (key == ESC) {
if (DBGIN_WANT_ESC & ctrl_flags) {
keys[0] = 0;
return -1;
}
} else {
if (DBGIN_NUM_ONLY & ctrl_flags) {
if (key < '0' || key > '9') {
/* Not accepted */
continue;
}
}
if (key <= ' ' || key >= 'z') {
/* Not accepted */
continue;
}
}
if (ctrl_flags & DBGIN_ECHO_ON) {
dbg_putchar(key);
}
keys[i++] = key;
}
return i;
}
void debug_kdb_handler(void)
{
kdb_handler(dbg_getchar());
}
int dbg_parse_line()
{
char ch;
unsigned int ad;
unsigned int ln;
unsigned int regno;
unsigned int ui;
int nn;
int n2;
while (linendx < 84) {
ch = dbg_getchar();
switch (ch) {
case -1: return;
case ' ': break;
case '?': dbg_DisplayHelp(); break;
case 'q': return 1;
case 'a': dbg_arm(dbg_dbctrl); break;
case 'i':
ch = dbg_getchar();
switch(ch) {
case '?': // query instruction breakpoints
if (((dbg_dbctrl & 0x030000)==0) && (dbg_dbctrl & 1) == 1)
printf("i0=%08X\r\n", dbg_GetDBAD(0));
if (((dbg_dbctrl & 0x300000)==0) && (dbg_dbctrl & 2) == 2)
printf("i1=%08X\r\n", dbg_GetDBAD(1));
if (((dbg_dbctrl & 0x3000000)==0) && (dbg_dbctrl & 4) == 4)
printf("i2=%08X\r\n", dbg_GetDBAD(2));
if (((dbg_dbctrl & 0x30000000)==0) && (dbg_dbctrl & 8) == 8)
printf("i2=%08X\r\n", dbg_GetDBAD(3));
break;
case '0': dbg_ReadSetIB(0); break;
case '1': dbg_ReadSetIB(1); break;
case '2': dbg_ReadSetIB(2); break;
case '3': dbg_ReadSetIB(3); break;
}
break;
case 'd':
ch = dbg_getchar();
switch(ch) {
case 'i':
dbg_nextSpace();
nn = dbg_getHexNumber(&ad);
if (nn > 0) {
n2 = dbg_getDecNumber(&ln);
if (n2 > 0) {
for (; n2 > 0; n2--)
disassem(&ad,0);
}
else
disassem20(ad,0);
}
break;
case '?': // query instruction breakpoints
printf("\r\n");
if (((dbg_dbctrl & 0x030000)==0x30000) && (dbg_dbctrl & 1) == 1)
printf("d0=%08X\r\n", dbg_GetDBAD(0));
if (((dbg_dbctrl & 0x300000)==0x300000) && (dbg_dbctrl & 2) == 2)
printf("d1=%08X\r\n", dbg_GetDBAD(1));
if (((dbg_dbctrl & 0x3000000)==0x3000000) && (dbg_dbctrl & 4) == 4)
printf("d2=%08X\r\n", dbg_GetDBAD(2));
if (((dbg_dbctrl & 0x30000000)==0x30000000) && (dbg_dbctrl & 8) == 8)
printf("d2=%08X\r\n", dbg_GetDBAD(3));
break;
case '0': dbg_ReadSetDB(0); break;
case '1': dbg_ReadSetDB(1); break;
case '2': dbg_ReadSetDB(2); break;
case '3': dbg_ReadSetDB(3); break;
case 's':
ch = dbg_getchar();
switch(ch) {
case '?':
if (((dbg_dbctrl & 0x030000)==0x10000) && (dbg_dbctrl & 1) == 1)
printf("ds0=%08X\r\n", dbg_GetDBAD(0));
if (((dbg_dbctrl & 0x300000)==0x100000) && (dbg_dbctrl & 2) == 2)
printf("ds1=%08X\r\n", dbg_GetDBAD(1));
if (((dbg_dbctrl & 0x3000000)==0x1000000) && (dbg_dbctrl & 4) == 4)
printf("ds2=%08X\r\n", dbg_GetDBAD(2));
if (((dbg_dbctrl & 0x30000000)==0x10000000) && (dbg_dbctrl & 8) == 8)
printf("ds2=%08X\r\n", dbg_GetDBAD(3));
break;
case '0': dbg_ReadSetDSB(0); break;
case '1': dbg_ReadSetDSB(1); break;
case '2': dbg_ReadSetDSB(2); break;
case '3': dbg_ReadSetDSB(3); break;
}
break;
default:
dbg_nextSpace();
dbg_SetDBAD(0,0);
dbg_SetDBAD(1,0);
dbg_SetDBAD(2,0);
dbg_SetDBAD(3,0);
dbg_arm(0);
break;
}
break;
case 'r': dbg_processReg(); break;
case 's':
ch = dbg_getchar();
if (ch=='s') {
ch = dbg_getchar();
if (ch=='-') {
dbg_dbctrl &= 0x3FFFFFFFFFFFFFFFL;
dbg_arm(dbg_dbctrl);
ssm = 0;
}
else if (ch=='+' || ch=='m') {
dbg_dbctrl |= 0x4000000000000000L;
dbg_arm(dbg_dbctrl);
ssm = 1;
return 1;
}
}
break;
case 'f':
ch = dbg_getchar();
if (ch=='/')
dbg_getDumpFormat();
ch = dbg_getchar();
if (ch==',') {
if (curfmt=='x')
nn = dbg_getHexNumber(&ui);
else
nn = dbg_getDecNumber(&ui);
if (nn > 0)
curfill = ui;
}
switch(curfmt) {
case 'x':
switch(cursz) {
case 'b':
for (nn = 0; nn < currep; nn++)
bmem[ad+nn] = curfill;
break;
case 'c':
for (nn = 0; nn < currep; nn++)
cmem[ad/2+nn] = curfill;
break;
case 'h':
for (nn = 0; nn < currep; nn++)
hmem[ad/4+nn] = curfill;
break;
case 'w':
for (nn = 0; nn < currep; nn++)
wmem[ad/8+nn] = curfill;
break;
}
}
break;
case 'x':
ch = dbg_getchar();
if (ch=='/') {
dbg_getDumpFormat();
}
switch(curfmt) {
case 'i':
printf("\r\n");
for (nn = 0; nn < currep; nn++) {
if (getcharNoWait()==3)
break;
disassem(&curaddr,0);
}
break;
case 's':
for (nn = 0; nn < currep; nn++) {
if (getcharNoWait()==3)
break;
curaddr += putstr(&cmem[curaddr/2],84) * 2;
printf("\r\n");
}
break;
case 'x':
for (nn = 0; nn < currep; nn++) {
if (getcharNoWait()==3)
break;
if ((nn % muol)==0) {
switch(cursz) {
case 'b': printf("\r\n%06X ", curaddr+nn); break;
case 'c': printf("\r\n%06X ", curaddr+nn*2); break;
case 'h': printf("\r\n%06X ", curaddr+nn*4); break;
case 'w': printf("\r\n%06X ", curaddr+nn*8); break;
}
}
asm {; right here ; };
switch(cursz) {
case 'b': printf("%02X ", bmem[curaddr+nn]); break;
case 'c': printf("%04X ", cmem[curaddr/2+nn]); break;
case 'h': printf("%08X ", hmem[curaddr/4+nn]); break;
case 'w': printf("%016X ", wmem[curaddr/8+nn]); break;
}
}
switch(cursz) {
case 'b': curaddr += nn; break;
case 'c': curaddr += nn * 2; break;
case 'h': curaddr += nn * 4; break;
case 'w': curaddr += nn * 8; break;
}
printf("\r\n");
break;
}
}
}
return 0;
}