static int handle_argument(const char *var, const char *val,
struct cmdarg *cmdargs)
{
// compare var against array of recognized arguments
for(int i = 0; cmdargs[i].arg != NULL; i++) {
struct cmdarg *a = &cmdargs[i];
if(!strncmp(var, a->arg, strlen(a->arg))) {
switch(a->type) {
case ArgType_Int:
return handle_int(a->var.integer, val);
case ArgType_UInt:
return handle_uint(a->var.uinteger, val);
case ArgType_Bool:
return handle_bool(a->var.boolean, val);
case ArgType_Custom:
return a->var.handler(var, val);
default:
assert(!"Unknown type %d in kernel argument array!");
return -1;
}
}
}
return 0;
}
int handle_type(json_parser *parser, const char c){
switch (c){
//TODO ADD SPECIAL STORAGE SUPPORT
//TODO ADD ARRAY SUPPORT
//skip White spaces
case ' ': case '\t': case '\r': case '\n':
break;
case '{': case '[':
parser->state = JSON_STATE_BEGIN_VAL_OR_KEY;
parser->level++;
break;
case '0' ... '9':
parser->state = JSON_STATE_INT;
handle_int(parser, c);
break;
case 't':
parser->state = JSON_STATE_TRUE;
break;
case 'f':
parser->state = JSON_STATE_FALSE;
break;
case 'n':
parser->state = JSON_STATE_NULL;
break;
case '\"':
parser->state = JSON_STATE_STR;
break;
default:
return JSON_ERROR_PARSING;
}
return JSON_CONTINUE;
}
// TODO: Check and handle any requested ints between instructions
void Ez80::execute()
{
if(pc==breakpoint) { debugger("Breakpoint!\n"); return; }
opcode=map->read8(pc);
op_len=Ez80_size[opcode];
cycle=Ez80_time[opcode];
unsigned int op=opcode,loc=pc,topcode=opcode;
#include <cpulib/generated/Ez80_exec.h>
pc+=op_len;
cycles+=cycle;
if(int_pending) handle_int(int_pending);
}
//TODO ADD OPTIMISATIONS DURING KEY MATCHING
int json_parse(json_parser *parser,
const char *input_buff, size_t buff_sz){
int i;
//The parser looks at one char at a time.
//the character is only advanced by this for loop.
for (; parser->buff_offset < buff_sz
&& input_buff[parser->buff_offset] != '\0';
parser->buff_offset++) {
char c;
int res;
c = input_buff[parser->buff_offset];
switch (parser->state){
case JSON_STATE_BEGIN_VAL_OR_KEY:
res = handle_begin_val_or_key(parser, c); break;
case JSON_STATE_INT_ELEM:
res = handle_int_elem(parser, c); break;
case JSON_STATE_TRUE_ELEM:
case JSON_STATE_FALSE_ELEM:
case JSON_STATE_NULL_ELEM:
res = handle_special_elem(parser, c); break;
case JSON_STATE_KEY_OR_STR: case JSON_STATE_KEY_OR_STR_ESCAPE:
res = handle_key_or_str(parser, c); break;
case JSON_STATE_KEY_OR_STR_END:
res = handle_key_or_str_end(parser, c); break;
case JSON_STATE_TYPE:
res = handle_type(parser, c); break;
case JSON_STATE_INT:
res = handle_int(parser, c); break;
case JSON_STATE_TRUE: case JSON_STATE_FALSE: case JSON_STATE_NULL:
res = handle_special(parser, c); break;
case JSON_STATE_STR: case JSON_STATE_STR_ESCAPE:
res = handle_str(parser, c); break;
case JSON_STATE_END_VAL:
res = handle_end_val(parser, c); break;
case JSON_STATE_START:
res = handle_start(parser, c); break;
//parsing stop if we are done or if there was an error
if (res <= 0)
return res;
}
}
//ran out of buffer, parser is either done or needs more input
if (parser->level == 0)
return JSON_DONE;
return JSON_CONTINUE;
}
void Ez80::cause_int(ULONG value)
{
if(!intsEnabled) {
int_pending=value;
return;
}
// TODO: What if we already had a pending one?
switch(value) {
case Ez80_INT_RESET:
reset();
break;
case Ez80_INT_NMI:
handle_int(value);
break;
case Ez80_INT_IRQ:
handle_int(value);
break;
default:
debugger("Illegal interrupt requested!\n");
break;
}
}
void EHitachi::execute()
{
R[7]=sp; // to keep them in sync...
if(pc==breakpoint) {
debugger("Breakpoint!\n");
return;
}
opcode=map->read16l(pc); // always little endian?
topcode=(opcode>>8)&0xff;
op_len=EHitachi_size[topcode];
cycle=EHitachi_time[topcode];
ULONG loc=pc;
#include <cpulib/generated/EHitachi_exec.h>
pc+=op_len;
sp=R[7]; // to keep them in sync...
cycles+=cycle;
if(int_pending) handle_int(int_pending);
}
void EArm::execute()
{
if(pc==breakpoint) { debugger("Breakpoint!\n"); return; }
opcode=read32mem(pc); // always little endian?
unsigned int topcode=(opcode>>20)&0xff;
unsigned int ccode=(opcode>>28)&0xf;
//op_len=EARM_size[topcode];
op_len=4;
cycle=EArm_time[topcode];
mode=EArm_format[topcode];
decode();
ULONG loc=pc;
if(willExecute) {
#include <cpulib/generated/EArm_exec.h>
}
pc+=op_len;
cycles+=cycle;
if(int_pending) handle_int(int_pending);
}
void EMips::execute(void)
{
if(pc==breakpoint) { debugger("Breakpoint!\n"); return; }
doRun=true;
ir=read32mem(pc);
op=ir;
tookBranch=false;
top=(op>>26)&0x3f;
opName=EMips_name[top];
opFormat=EMips_format[top];
opSubFormat=EMips_subformat[top];
opFlags=EMips_flags[top];
decode(op);
int topcode=top;
#include <cpulib/generated/EMips_exec.h>
pc=npc;
npc+=4;
if(tookBranch) npc=branch_address;
if(anull) { pc=npc; npc=pc+4; anull=false; }
if(int_pending) handle_int(int_pending);
}
