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#include "monitor.h"
#ifndef NOCOMMAND
extern unsigned int current_address;
extern int number_base;
int cmd_quit(args)
char * args;
{
printf("Bye\n");
exit(0);
}
int cmd_nop(ptr)
char * ptr;
{
}
int cmd_dir(ptr)
char * ptr;
{
open_file(".");
return 0;
}
int cmd_type(ptr)
char * ptr;
{
char * fname;
char buffer[1024];
long len;
while(*ptr == ' ') ptr++;
if( (fname=ptr) == 0 ) return 0;
while(*ptr & *ptr != ' ') ptr++;
if( open_file(fname) >= 0 ) for(len=file_length(); len>0; len-=1024)
{
if( read_block(buffer) < 0 ) break;
if( len > 1024 )
write(1, buffer, 1024);
else
write(1, buffer, len);
}
else
printf("Cannot open file '%s'\n", fname);
close_file();
return 0;
}
int cmd_more(ptr)
char * ptr;
{
char * fname;
char buffer[1024];
long len;
int cc;
char * sptr;
while(*ptr == ' ') ptr++;
if( (fname=ptr) == 0 ) return 0;
while(*ptr & *ptr != ' ') ptr++;
more_char(-1);
if( open_file(fname) >= 0 ) for(len=file_length(); len>0; len-=1024)
{
if( read_block(buffer) < 0 ) break;
if( len > 1024 ) cc = 1024; else cc = len;
for(sptr=buffer; cc>0 ; cc--,sptr++)
{
if( more_char(*sptr & 0xFF) < 0 ) goto break_break;
}
}
else
printf("Cannot open file '%s'\n", fname);
break_break:;
close_file();
return 0;
}
more_char(ch)
int ch;
{
static int line_number = 0;
if( ch == -1 ) { line_number = 0; return 0; }
if( (ch & 0xE0 ) || ch == '\n' )
putchar(ch);
if( ch == '\n' && ++line_number == 24)
{
char buf[4];
printf("More ?"); fflush(stdout);
if( read(0, buf, 1) <= 0 ) return -1;
if( buf[0] == 3 || buf[0] == '\033'
|| buf[0] == 'q' || buf[0] == 'Q' ) return -1;
if( buf[0] == '\r' ) line_number--;
if( buf[0] == ' ' ) line_number=2;
printf("\r \r");
}
return 0;
}
more_strn(str, len)
char * str;
int len;
{
for(; len>0 && *str ; len--,str++)
if( more_char( *str & 0xFF ) < 0 ) return -1;
return 0;
}
#endif
/**************************************************************************/
#ifndef NOMONITOR
cmd_regs()
{
#ifdef __STANDALONE__
printf("REGS: AX=%04x BX=%04x CX=%04x DX=%04x SI=%04x DI=%04x\n",
__argr.x.ax, __argr.x.bx, __argr.x.cx, __argr.x.dx,
__argr.x.si, __argr.x.di);
#else
printf("Only in standalone\n");
#endif
}
int cmd_memdump(ptr)
char * ptr;
{
int count = 128;
int i,j;
int es = __get_es();
#define rmem(x) __peek_es( (x)+current_address )
getnum(&ptr, ¤t_address);
getnum(&ptr, &count);
for(i=0; i<count; i+=16)
{
printf("%04x:%04x:", es, current_address);
for(j=0; j<16; j++)
printf(" %s%02x", (j==8)?" ":"", rmem(j));
printf(" ");
for(j=0; j<16; j++)
if( rmem(j) >= ' ' && rmem(j) <= '~' )
putchar(rmem(j));
else
putchar('.');
putchar('\n');
current_address += 16;
current_address &= 0xFFFF;
}
#undef rmem
}
int cmd_seg(ptr)
char * ptr;
{
int es = __get_es();
if( getnum(&ptr, &es) )
{
__set_es(es);
current_address = 0;
}
else
printf("Current segment 0x%04x\n", es);
return 0;
}
int cmd_set_base(ptr)
{
int obase = number_base;
int nbase;
number_base = 10;
if( getnum(&ptr, &nbase) )
{
if( nbase < 2 || nbase > 36 )
printf("Can't use that base\n");
else
obase = nbase;
}
else printf("Current base is %d\n", obase);
number_base = obase;
return 0;
}
int cmd_rel(ptr)
char * ptr;
{
int nseg = 0xFFFF;
int cs = __get_cs();
getnum(&ptr, &nseg);
relocator(nseg);
if( __get_cs() == cs )
printf("Didn't relocate; CS=$%04x DS=$%04x\n", __get_cs(), __get_ds());
else
printf("Relocated to CS=$%04x DS=$%04x\n", __get_cs(), __get_ds());
}
#endif
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