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debug shell - : memory assignment

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This commit is contained in:
Kelvin Sherlock 2019-02-06 22:46:46 -05:00
parent b7ff6d56e8
commit b08806c12a
1 changed files with 48 additions and 0 deletions
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48
src/debug_shell.re2c
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@ -339,6 +339,44 @@ next:
return 0;
}
static word32 do_mem_assign(word32 addr, const char *cp) {
/* "string" -> pokes ASCII chars */
/* 'string' -> pokes ASCII chars | 0x80 */
/* xx -> pokes hex byte */
const char *YYCURSOR = cp;
const char *YYMARKER = NULL;
for(;;) {
const char *start = YYCURSOR;
/*!re2c
end { return addr; }
" " { continue; }
* {
fputs("Invalid data\n", stderr);
return addr;
}
x{2} {
set_memory_c(addr++, to_hex(start, YYCURSOR), 0);
continue;
}
["] [^"\x00]* ["] {
for(++start; start < YYCURSOR -1; ++start) {
set_memory_c(addr++, *start, 0);
}
continue;
}
['] [^'\x00]* ['] {
for(++start; start < YYCURSOR -1; ++start) {
set_memory_c(addr++, *start | 0x80, 0);
}
continue;
}
*/
}
}
static int addr_cmp(const void *a, const void *b) {
word32 aa = *(const word32 *)a;
@ -707,6 +745,16 @@ command:
/*!re2c
* { return -1; }
";l" end {
":" {
if (!has_addr) {
addr = g_prev_address;
has_bank = 1;
}
if (!has_bank) addr |= (g_prev_address & 0xff0000);
g_prev_address = do_mem_assign(addr, YYCURSOR);
return 0;
}
int psr = engine.psr;
if (!has_addr) {
addr = g_prev_address;