diff options
Diffstat (limited to 'src/devices/cpu/sm510/sm510core.cpp')
-rw-r--r-- | src/devices/cpu/sm510/sm510core.cpp | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/src/devices/cpu/sm510/sm510core.cpp b/src/devices/cpu/sm510/sm510core.cpp deleted file mode 100644 index 80ab6bf6ab3..00000000000 --- a/src/devices/cpu/sm510/sm510core.cpp +++ /dev/null @@ -1,176 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:hap -/* - - Sharp SM510 MCU core implementation - - TODO: - - X - -*/ - -#include "emu.h" -#include "sm510.h" -#include "sm510d.h" -#include "debugger.h" - - -// MCU types -DEFINE_DEVICE_TYPE(SM510, sm510_device, "sm510", "Sharp SM510") // 2.7Kx8 ROM, 128x4 RAM(32x4 for LCD) - - -// internal memory maps -void sm510_device::program_2_7k(address_map &map) -{ - map(0x0000, 0x02bf).rom(); - map(0x0400, 0x06bf).rom(); - map(0x0800, 0x0abf).rom(); - map(0x0c00, 0x0ebf).rom(); -} - -void sm510_device::data_96_32x4(address_map &map) -{ - map(0x00, 0x5f).ram(); - map(0x60, 0x6f).ram().share("lcd_ram_a"); - map(0x70, 0x7f).ram().share("lcd_ram_b"); -} - - -// device definitions -sm510_device::sm510_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : - sm510_base_device(mconfig, SM510, tag, owner, clock, 2 /* stack levels */, 12 /* prg width */, address_map_constructor(FUNC(sm510_device::program_2_7k), this), 7 /* data width */, address_map_constructor(FUNC(sm510_device::data_96_32x4), this)) -{ } - - -// disasm -std::unique_ptr<util::disasm_interface> sm510_device::create_disassembler() -{ - return std::make_unique<sm510_disassembler>(); -} - - - -//------------------------------------------------- -// buzzer controller -//------------------------------------------------- - -void sm510_device::clock_melody() -{ - u8 out = 0; - - if (m_r_mask_option == RMASK_DIRECT) - { - // direct output - out = m_r & 3; - } - else - { - // from divider, R2 inverse phase - out = m_div >> m_r_mask_option & 1; - out |= (out << 1 ^ 2); - out &= m_r; - } - - // output to R pins - if (out != m_r_out) - { - m_write_r(0, out, 0xff); - m_r_out = out; - } -} - - - -//------------------------------------------------- -// execute -//------------------------------------------------- - -void sm510_device::get_opcode_param() -{ - // LBL, TL, TML opcodes are 2 bytes - if (m_op == 0x5f || (m_op & 0xf0) == 0x70) - { - m_icount--; - m_param = m_program->read_byte(m_pc); - increment_pc(); - } -} - -void sm510_device::execute_one() -{ - switch (m_op & 0xf0) - { - case 0x20: op_lax(); break; - case 0x30: op_adx(); break; - case 0x40: op_lb(); break; - - case 0x80: case 0x90: case 0xa0: case 0xb0: - op_t(); break; - case 0xc0: case 0xd0: case 0xe0: case 0xf0: - op_tm(); break; - - default: - switch (m_op & 0xfc) - { - case 0x04: op_rm(); break; - case 0x0c: op_sm(); break; - case 0x10: op_exc(); break; - case 0x14: op_exci(); break; - case 0x18: op_lda(); break; - case 0x1c: op_excd(); break; - case 0x54: op_tmi(); break; - case 0x70: case 0x74: case 0x78: op_tl(); break; - case 0x7c: op_tml(); break; - - default: - switch (m_op) - { - case 0x00: op_skip(); break; - case 0x01: op_atbp(); break; - case 0x02: op_sbm(); break; - case 0x03: op_atpl(); break; - case 0x08: op_add(); break; - case 0x09: op_add11(); break; - case 0x0a: op_coma(); break; - case 0x0b: op_exbla(); break; - - case 0x51: op_tb(); break; - case 0x52: op_tc(); break; - case 0x53: op_tam(); break; - case 0x58: op_tis(); break; - case 0x59: op_atl(); break; - case 0x5a: op_ta0(); break; - case 0x5b: op_tabl(); break; - case 0x5d: op_cend(); break; - case 0x5e: op_tal(); break; - case 0x5f: op_lbl(); break; - - case 0x60: op_atfc(); break; - case 0x61: op_atr(); break; - case 0x62: op_wr(); break; - case 0x63: op_ws(); break; - case 0x64: op_incb(); break; - case 0x65: op_idiv(); break; - case 0x66: op_rc(); break; - case 0x67: op_sc(); break; - case 0x68: op_tf1(); break; - case 0x69: op_tf4(); break; - case 0x6a: op_kta(); break; - case 0x6b: op_rot(); break; - case 0x6c: op_decb(); break; - case 0x6d: op_bdc(); break; - case 0x6e: op_rtn0(); break; - case 0x6f: op_rtn1(); break; - - default: op_illegal(); break; - } - break; // 0xff - - } - break; // 0xfc - - } // big switch - - // BM high bit is only valid for 1 step - m_sbm = (m_op == 0x02); -} |