C++ (Cpp) fetch16示例

示例#1

文件： TLCS900h_interpret_single.c 项目： BadyRaty/NeoPop-Core

//===== LD (n), nn
void sngLD8_16()
{
	_u8 dst = FETCH8;
	_u16 src = fetch16();
	storeW(dst, src);
	cycles = 6;
}

示例#2

文件： addressing.c 项目： fatcookies/Nes-Nes

 uint16_t indirect_y_pages() {
	uint16_t temp = fetch16(next());
	uint16_t res = temp + registers->y;
	if((temp & res) >> 8) {
		cycles++;
	}
	return res;
}

示例#3

文件： Gdyn-remote.c 项目： vegard/libunwind

static int
intern_op (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
           unw_dyn_op_t *op, void *arg)
{
  int ret;

  if ((ret = fetch8 (as, a, addr, &op->tag, arg)) < 0
      || (ret = fetch8 (as, a, addr, &op->qp, arg)) < 0
      || (ret = fetch16 (as, a, addr, &op->reg, arg)) < 0
      || (ret = fetch32 (as, a, addr, &op->when, arg)) < 0
      || (ret = fetchw  (as, a, addr, &op->val, arg)) < 0)
    return ret;
  return 0;
}

示例#4

文件： hc11dasm.c 项目： broftkd/historic-mame

static UINT32 decode_opcode(UINT32 pc, const M68HC11_OPCODE *op_table)
{
	UINT8 imm8, mask;
	INT8 rel8;
	UINT16 imm16;
	UINT8 op2;
	UINT32 flags = 0;

	if (!strcmp(op_table->mnemonic, "jsr") || !strcmp(op_table->mnemonic, "bsr"))
		flags = DASMFLAG_STEP_OVER;
	else if (!strcmp(op_table->mnemonic, "rts") || !strcmp(op_table->mnemonic, "rti"))
		flags = DASMFLAG_STEP_OUT;

	switch(op_table->address_mode)
	{
		case EA_IMM8:
			imm8 = fetch();
			print("%s 0x%02X", op_table->mnemonic, imm8);
			break;

		case EA_IMM16:
			imm16 = fetch16();
			print("%s 0x%04X", op_table->mnemonic, imm16);
			break;

		case EA_DIRECT:
			imm8 = fetch();
			print("%s (0x%04X)", op_table->mnemonic, imm8);
			break;

		case EA_EXT:
			imm16 = fetch16();
			print("%s (0x%04X)", op_table->mnemonic, imm16);
			break;

		case EA_IND_X:
			imm8 = fetch();
			print("%s (X+0x%02X)", op_table->mnemonic, imm8);
			break;

		case EA_REL:
			rel8 = fetch();
			print("%s [0x%04X]", op_table->mnemonic, pc+2+rel8);
			break;

		case EA_DIRECT_IMM8:
			imm8 = fetch();
			mask = fetch();
			print("%s (0x%04X), 0x%02X", op_table->mnemonic, imm8, mask);
			break;

		case EA_IND_X_IMM8:
			imm8 = fetch();
			mask = fetch();
			print("%s (X+0x%02X), 0x%02X", op_table->mnemonic, imm8, mask);
			break;

		case EA_DIRECT_IMM8_REL:
			imm8 = fetch();
			mask = fetch();
			rel8 = fetch();
			print("%s (0x%04X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+4+rel8);
			break;

		case EA_IND_X_IMM8_REL:
			imm8 = fetch();
			mask = fetch();
			rel8 = fetch();
			print("%s (X+0x%02X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+4+rel8);
			break;

		case EA_IND_Y:
			imm8 = fetch();
			print("%s (Y+0x%02X)", op_table->mnemonic, imm8);
			break;

		case EA_IND_Y_IMM8:
			imm8 = fetch();
			mask = fetch();
			print("%s (Y+0x%02X), 0x%02X", op_table->mnemonic, imm8, mask);
			break;

		case EA_IND_Y_IMM8_REL:
			imm8 = fetch();
			mask = fetch();
			rel8 = fetch();
			print("%s (Y+0x%02X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+2+rel8);
			break;

		case PAGE2:
			op2 = fetch();
			return decode_opcode(pc, &opcode_table_page2[op2]);

		case PAGE3:
			op2 = fetch();
			return decode_opcode(pc, &opcode_table_page3[op2]);

		case PAGE4:
			op2 = fetch();
			return decode_opcode(pc, &opcode_table_page4[op2]);

		default:
			print("%s", op_table->mnemonic);
	}
	return flags;
}

示例#5

文件： addressing.c 项目： fatcookies/Nes-Nes

 uint16_t indirect_y() {
	return fetch16(next()) + registers->y;
}

示例#6

文件： addressing.c 项目： fatcookies/Nes-Nes

 uint16_t indirect_x() {
	return fetch16(next() + registers->x);
}

示例#7

文件： addressing.c 项目： fatcookies/Nes-Nes

 uint16_t indirect() {
	return fetch16(next16());
}

示例#8

文件： hc11dasm.c 项目： BirchJD/advancemame-0.106.1-RPi

static void decode_opcode(UINT32 pc, M68HC11_OPCODE *op_table)
{
	UINT8 imm8, mask;
	INT8 rel8;
	UINT16 imm16;
	UINT8 op2;

	switch(op_table->address_mode)
	{
		case EA_IMM8:
			imm8 = fetch();
			print("%s 0x%02X", op_table->mnemonic, imm8);
			break;

		case EA_IMM16:
			imm16 = fetch16();
			print("%s 0x%04X", op_table->mnemonic, imm16);
			break;

		case EA_DIRECT:
			imm8 = fetch();
			print("%s (0x%04X)", op_table->mnemonic, imm8);
			break;

		case EA_EXT:
			imm16 = fetch16();
			print("%s (0x%04X)", op_table->mnemonic, imm16);
			break;

		case EA_IND_X:
			imm8 = fetch();
			print("%s (X+0x%02X)", op_table->mnemonic, imm8);
			break;

		case EA_REL:
			rel8 = fetch();
			print("%s [0x%04X]", op_table->mnemonic, pc+2+rel8);
			break;

		case EA_DIRECT_IMM8:
			imm8 = fetch();
			mask = fetch();
			print("%s (0x%04X), 0x%02X", op_table->mnemonic, imm8, mask);
			break;

		case EA_IND_X_IMM8:
			imm8 = fetch();
			mask = fetch();
			print("%s (X+0x%02X), 0x%02X", op_table->mnemonic, imm8, mask);
			break;

		case EA_DIRECT_IMM8_REL:
			imm8 = fetch();
			mask = fetch();
			rel8 = fetch();
			print("%s (0x%04X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+2+rel8);
			break;

		case EA_IND_X_IMM8_REL:
			imm8 = fetch();
			mask = fetch();
			rel8 = fetch();
			print("%s (X+0x%02X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+2+rel8);
			break;

		case EA_IND_Y:
			imm8 = fetch();
			print("%s (Y+0x%02X)", op_table->mnemonic, imm8);
			break;

		case EA_IND_Y_IMM8:
			imm8 = fetch();
			mask = fetch();
			print("%s (Y+0x%02X), 0x%02X", op_table->mnemonic, imm8, mask);
			break;

		case EA_IND_Y_IMM8_REL:
			imm8 = fetch();
			mask = fetch();
			rel8 = fetch();
			print("%s (Y+0x%02X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+2+rel8);
			break;

		case PAGE2:
			op2 = fetch();
			decode_opcode(pc, &opcode_table_page2[op2]);
			break;

		case PAGE3:
			op2 = fetch();
			decode_opcode(pc, &opcode_table_page3[op2]);
			break;

		case PAGE4:
			op2 = fetch();
			decode_opcode(pc, &opcode_table_page4[op2]);
			break;

		default:
			print("%s", op_table->mnemonic);
	}
}

示例#9

文件： TLCS900h_interpret_single.c 项目： BadyRaty/NeoPop-Core

//===== PUSH nn
void sngPUSH16()
{
	push16(fetch16());
	cycles = 5;
}