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reg.cpp
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reg.cpp
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/* KIRK IDP main and reg - (c) Proxima 2023
*/
#pragma warning ( disable : 4146)
#include "kirk.hpp"
int data_id;
//---------------------------------------------------------------------------------------------------------------------
static bool idaapi can_have_type(const op_t& x) // returns 1 - operand can have
{
switch (x.type)
{
case o_void:
case o_reg:
case o_near:
return 0;
//case o_phrase: can have type because of ASI or 0 struct offsets
}
return 1;
}
//---------------------------------------------------------------------------------------------------------------------
ssize_t idaapi idb_listener_t::on_event(ssize_t code, va_list)
{
/*
switch (code)
{
// add stuff here...
default: break;
}
*/
return 0;
}
//---------------------------------------------------------------------------------------------------------------------
// This old-style callback only returns the processor module object.
static ssize_t idaapi notify(void*, int msgid, va_list)
{
if (msgid == processor_t::ev_get_procmod) return size_t(SET_MODULE_DATA(kirk_t));
return 0;
}
void kirk_t::load_from_idb()
{
ioh.restore_device();
}
//---------------------------------------------------------------------------------------------------------------------
bool kirk_t::kirk_find_ioport_bit(outctx_t& ctx, int port, int bit)
{
const ioport_bit_t* b = find_ioport_bit(ioh.ports, port, bit);
if (b != nullptr && !b->name.empty()) ctx.out_line(b->name.c_str(), COLOR_IMPNAME); return true;
return false;
}
//---------------------------------------------------------------------------------------------------------------------
ssize_t idaapi kirk_t::on_event(ssize_t msgid, va_list va)
{
int code = 0;
switch (msgid)
{
case processor_t::ev_newfile:
{
char cfgfile[QMAXFILE];
//warning("In newfile");
ioh.get_cfg_filename(cfgfile, sizeof(cfgfile));
iohandler_t::parse_area_line0_t cb(ioh);
if (choose_ioport_device2(&ioh.device, cfgfile, &cb))
ioh.set_device_name(ioh.device.c_str(), IORESP_ALL);
}
case processor_t::ev_ending_undo:
case processor_t::ev_oldfile:
{
load_from_idb();
break;
}
case processor_t::ev_get_frame_retsize:
{
int* frsize = va_arg(va, int*);
*frsize = 0;
return 1;
}
case processor_t::ev_init:
{
hook_event_listener(HT_IDB, &idb_listener, &LPH);
// Set a big endian mode of the IDA kernel
inf_set_be(true);
helper.create(PROCMOD_NODE_NAME);
break;
}
case processor_t::ev_term:
{
unhook_event_listener(HT_IDB, &idb_listener);
ioh.ports.clear();
clr_module_data(data_id);
break;
}
case processor_t::ev_ana_insn:
{
insn_t* out = va_arg(va, insn_t*);
return kirk_ana(out);
}
case processor_t::ev_emu_insn:
{
const insn_t* insn = va_arg(va, const insn_t*);
return kirk_emu(*insn) ? 1 : -1;
}
case processor_t::ev_out_insn:
{
outctx_t* ctx = va_arg(va, outctx_t*);
out_insn(*ctx);
return 1;
}
case processor_t::ev_out_operand:
{
outctx_t* ctx = va_arg(va, outctx_t*);
const op_t* op = va_arg(va, const op_t*);
return out_opnd(*ctx, *op) ? 1 : -1;
}
case processor_t::ev_can_have_type:
{
const op_t* op = va_arg(va, const op_t*);
return can_have_type(*op) ? 1 : -1;
}
default:
break;
}
va_end(va);
return code;
}
//---------------------------------------------------------------------------------------------------------------------
static const asm_t kirkasm =
{
ASH_HEXF3 | AS_COLON | ASB_BINF0 | ASO_OCTF1 | AS_NCMAS,
0,
"KIRK assembler",
0,
NULL,
".org",
".end",
";", // comment string
'"', // string delimiter
'\'', // char delimiter (no char consts)
"'\"", // special symbols in char and string constants
".ascii", // ascii string directive
".byte", // byte directive
".word", // word directive
".dword", // dword (4 bytes)
".qword", // qword (8 bytes)
NULL, // oword (16 bytes)
".float", // float (4 bytes)
".double", // double (8 bytes)
NULL, // tbyte (10/12 bytes)
NULL, // packed decimal real
"#d dup(#v)", // array keyword (#h,#d,#v,#s(...))
".block %s", // uninited arrays
".equ", // equ
NULL, // seg prefix
NULL, // comment close
NULL, // low 8 bits
NULL, // high 8 bits
NULL, // low 16 bits
NULL, // high 16 bits
NULL, // preline
NULL, // start of bold text
NULL, // start of normal text
NULL, // start of literal text
NULL, // end of comment
NULL, // get_type_name
NULL, // align
NULL, // left brace
NULL, // right brace
NULL, // modulo operator
NULL, // and operator
NULL, // or operator
NULL, // xor operator
NULL, // not operator
NULL, // shift left operator
NULL, // shift right operator
NULL // sizeof operator
};
//---------------------------------------------------------------------------------------------------------------------
static const asm_t* const asms[] = { &kirkasm, NULL };
//---------------------------------------------------------------------------------------------------------------------
static const uchar retcode_1[] = { 0xF0, 0x00, 0x00, 0x00 };
//---------------------------------------------------------------------------------------------------------------------
static const bytes_t retcodes[] =
{
{ sizeof(retcode_1), retcode_1 },
{ 0, NULL }
};
//---------------------------------------------------------------------------------------------------------------------
#define FAMILY "Star Trek PSP Processors:"
static const char* const shnames[] = { "KIRK", NULL };
static const char* const lnames[] = { FAMILY"KIRK big endian", NULL };
//---------------------------------------------------------------------------------------------------------------------
//-----------------------------------------------------------------------
// Processor Definition
//-----------------------------------------------------------------------
#define PLFM_KIRK 0x8000 +0x1701
static const char* const RegNames[] =
{
"r0",
"r1",
"r2",
"r3",
"r4",
"gp",
"fp",
"sp",
"ra",
"ea",
"ba",
};
processor_t LPH =
{
IDP_INTERFACE_VERSION, // version
PLFM_KIRK, // id
// flag
PR_USE32|PR_DEFSEG32|PRN_HEX|PR_RNAMESOK|PR_ALIGN,
0, // the module has processor-specific configuration options
8, // 8 bits in a byte for code segments
8, // 8 bits in a byte for other segments
shnames,
lnames,
asms,
notify,
RegNames,
qnumber(RegNames), // number of registers
qnumber(RegNames) - 2, // first
qnumber(RegNames) - 1, // last
0, // size of a segment register
qnumber(RegNames) - 2, // virtual CS
qnumber(RegNames) - 1, // virtual DS
NULL, // no known code start sequences
retcodes, // 'Return' instruction codes
0, //
KIRK_INSN_F8_INTR + 1, //
Instructions, // instruc
0, // int tbyte_size; -- doesn't exist
{ 0, 0, 0, 0 }, // char real_width[4];
// number of symbols after decimal point
// 2byte float (0-does not exist)
// normal float
// normal double
// long double
KIRK_INSN_F0_RET, // icode of return instruction. It is ok to give any of possible return instructions
};