// license:BSD-3-Clause // copyright-holders:Ville Linde /* Analog Devices ADSP-2106x SHARC emulator v2.0 Written by Ville Linde */ #include "emu.h" #include "debugger.h" #include "sharc.h" enum { SHARC_PC=1, SHARC_PCSTK, SHARC_MODE1, SHARC_MODE2, SHARC_ASTAT, SHARC_STKY, SHARC_IRPTL, SHARC_IMASK, SHARC_IMASKP, SHARC_USTAT1, SHARC_USTAT2, SHARC_LCNTR, SHARC_R0, SHARC_R1, SHARC_R2, SHARC_R3, SHARC_R4, SHARC_R5, SHARC_R6, SHARC_R7, SHARC_R8, SHARC_R9, SHARC_R10, SHARC_R11, SHARC_R12, SHARC_R13, SHARC_R14, SHARC_R15, SHARC_SYSCON, SHARC_SYSSTAT, SHARC_MRF, SHARC_MRB, SHARC_STSTKP, SHARC_PCSTKP, SHARC_LSTKP, SHARC_FADDR, SHARC_DADDR, SHARC_I0, SHARC_I1, SHARC_I2, SHARC_I3, SHARC_I4, SHARC_I5, SHARC_I6, SHARC_I7, SHARC_I8, SHARC_I9, SHARC_I10, SHARC_I11, SHARC_I12, SHARC_I13, SHARC_I14, SHARC_I15, SHARC_M0, SHARC_M1, SHARC_M2, SHARC_M3, SHARC_M4, SHARC_M5, SHARC_M6, SHARC_M7, SHARC_M8, SHARC_M9, SHARC_M10, SHARC_M11, SHARC_M12, SHARC_M13, SHARC_M14, SHARC_M15, SHARC_L0, SHARC_L1, SHARC_L2, SHARC_L3, SHARC_L4, SHARC_L5, SHARC_L6, SHARC_L7, SHARC_L8, SHARC_L9, SHARC_L10, SHARC_L11, SHARC_L12, SHARC_L13, SHARC_L14, SHARC_L15, SHARC_B0, SHARC_B1, SHARC_B2, SHARC_B3, SHARC_B4, SHARC_B5, SHARC_B6, SHARC_B7, SHARC_B8, SHARC_B9, SHARC_B10, SHARC_B11, SHARC_B12, SHARC_B13, SHARC_B14, SHARC_B15, }; #define ROPCODE(pc) ((UINT64)(m_internal_ram[((pc-0x20000) * 3) + 0]) << 32) | \ ((UINT64)(m_internal_ram[((pc-0x20000) * 3) + 1]) << 16) | \ ((UINT64)(m_internal_ram[((pc-0x20000) * 3) + 2]) << 0) const device_type ADSP21062 = &device_creator; // This is just used to stop the debugger from complaining about executing from I/O space static ADDRESS_MAP_START( internal_pgm, AS_PROGRAM, 64, adsp21062_device ) AM_RANGE(0x20000, 0x7ffff) AM_RAM AM_SHARE("x") ADDRESS_MAP_END adsp21062_device::adsp21062_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : cpu_device(mconfig, ADSP21062, "ADSP21062", tag, owner, clock, "adsp21062", __FILE__) , m_program_config("program", ENDIANNESS_LITTLE, 64, 24, -3, ADDRESS_MAP_NAME(internal_pgm)) , m_data_config("data", ENDIANNESS_LITTLE, 32, 32, -2) , m_boot_mode(BOOT_MODE_HOST) { } offs_t adsp21062_device::disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options) { extern CPU_DISASSEMBLE( sharc ); return CPU_DISASSEMBLE_NAME(sharc)(this, buffer, pc, oprom, opram, options); } void adsp21062_device::CHANGE_PC(UINT32 newpc) { m_pc = newpc; m_daddr = newpc; m_faddr = newpc+1; m_nfaddr = newpc+2; } void adsp21062_device::CHANGE_PC_DELAYED(UINT32 newpc) { m_nfaddr = newpc; m_delay_slot1 = m_pc; m_delay_slot2 = m_daddr; } TIMER_CALLBACK_MEMBER(adsp21062_device::sharc_iop_delayed_write_callback) { switch (m_iop_delayed_reg) { case 0x1c: { if (m_iop_delayed_data & 0x1) { sharc_dma_exec(6); } break; } case 0x1d: { if (m_iop_delayed_data & 0x1) { sharc_dma_exec(7); } break; } default: fatalerror("SHARC: sharc_iop_delayed_write: unknown IOP register %02X\n", m_iop_delayed_reg); } m_delayed_iop_timer->adjust(attotime::never, 0); } void adsp21062_device::sharc_iop_delayed_w(UINT32 reg, UINT32 data, int cycles) { m_iop_delayed_reg = reg; m_iop_delayed_data = data; m_delayed_iop_timer->adjust(cycles_to_attotime(cycles), 0); } /* IOP registers */ UINT32 adsp21062_device::sharc_iop_r(UINT32 address) { switch (address) { case 0x00: return 0; // System configuration case 0x37: // DMA status { return m_dma_status; } default: fatalerror("sharc_iop_r: Unimplemented IOP reg %02X at %08X\n", address, m_pc); } } void adsp21062_device::sharc_iop_w(UINT32 address, UINT32 data) { switch (address) { case 0x00: break; // System configuration case 0x02: break; // External Memory Wait State Configuration case 0x04: // External port DMA buffer 0 /* TODO: Last Bronx uses this to init the program, int_index however is 0? */ { external_dma_write(m_extdma_shift,data); m_extdma_shift++; if(m_extdma_shift == 3) m_extdma_shift = 0; #if 0 UINT64 r = pm_read48(m_dma[6].int_index); r &= ~((UINT64)(0xffff) << (m_extdma_shift*16)); r |= ((UINT64)data & 0xffff) << (m_extdma_shift*16); pm_write48(m_dma[6].int_index, r); m_extdma_shift++; if (m_extdma_shift == 3) { m_extdma_shift = 0; m_dma[6].int_index ++; } #endif } break; case 0x08: break; // Message Register 0 case 0x09: break; // Message Register 1 case 0x0a: break; // Message Register 2 case 0x0b: break; // Message Register 3 case 0x0c: break; // Message Register 4 case 0x0d: break; // Message Register 5 case 0x0e: break; // Message Register 6 case 0x0f: break; // Message Register 7 case 0x14: // reserved??? written by Last Bronx case 0x17: break; // DMA 6 case 0x1c: { m_dma[6].control = data; sharc_iop_delayed_w(0x1c, data, 1); break; } case 0x20: break; case 0x40: m_dma[6].int_index = data; return; case 0x41: m_dma[6].int_modifier = data; return; case 0x42: m_dma[6].int_count = data; return; case 0x43: m_dma[6].chain_ptr = data; return; case 0x44: m_dma[6].gen_purpose = data; return; case 0x45: m_dma[6].ext_index = data; return; case 0x46: m_dma[6].ext_modifier = data; return; case 0x47: m_dma[6].ext_count = data; return; // DMA 7 case 0x1d: { m_dma[7].control = data; sharc_iop_delayed_w(0x1d, data, 30); break; } case 0x48: m_dma[7].int_index = data; return; case 0x49: m_dma[7].int_modifier = data; return; case 0x4a: m_dma[7].int_count = data; return; case 0x4b: m_dma[7].chain_ptr = data; return; case 0x4c: m_dma[7].gen_purpose = data; return; case 0x4d: m_dma[7].ext_index = data; return; case 0x4e: m_dma[7].ext_modifier = data; return; case 0x4f: m_dma[7].ext_count = data; return; default: fatalerror("sharc_iop_w: Unimplemented IOP reg %02X, %08X at %08X\n", address, data, m_pc); } } #include "sharcmem.inc" #include "sharcdma.inc" #include "sharcops.inc" #include "sharcops.h" void adsp21062_device::build_opcode_table() { int i, j; int num_ops = sizeof(s_sharc_opcode_table) / sizeof(SHARC_OP); for (i=0; i < 512; i++) { m_sharc_op[i] = &adsp21062_device::sharcop_unimplemented; } for (i=0; i < 512; i++) { UINT16 op = i << 7; for (j=0; j < num_ops; j++) { if ((s_sharc_opcode_table[j].op_mask & op) == s_sharc_opcode_table[j].op_bits) { if (m_sharc_op[i] != &adsp21062_device::sharcop_unimplemented) { fatalerror("build_opcode_table: table already filled! (i=%04X, j=%d)\n", i, j); } else { m_sharc_op[i] = s_sharc_opcode_table[j].handler; } } } } } /*****************************************************************************/ void adsp21062_device::external_iop_write(UINT32 address, UINT32 data) { if (address == 0x1c) { if (data != 0) { m_dma[6].control = data; } } else { osd_printf_debug("SHARC IOP write %08X, %08X\n", address, data); sharc_iop_w(address, data); } } void adsp21062_device::external_dma_write(UINT32 address, UINT64 data) { /* All addresses in the 17-bit index registers are offset by 0x0002 0000, the first internal RAM location, before they are used by the DMA controller. */ switch ((m_dma[6].control >> 6) & 0x3) { case 2: // 16/48 packing { int shift = address % 3; UINT64 r = pm_read48((m_dma[6].int_index & 0x1ffff) | 0x20000); r &= ~((UINT64)(0xffff) << (shift*16)); r |= (data & 0xffff) << (shift*16); pm_write48((m_dma[6].int_index & 0x1ffff) | 0x20000, r); if (shift == 2) { m_dma[6].int_index += m_dma[6].int_modifier; } break; } default: { fatalerror("sharc_external_dma_write: unimplemented packing mode %d\n", (m_dma[6].control >> 6) & 0x3); } } } void adsp21062_device::device_start() { int saveindex; m_program = &space(AS_PROGRAM); m_data = &space(AS_DATA); build_opcode_table(); m_internal_ram_block0 = &m_internal_ram[0]; m_internal_ram_block1 = &m_internal_ram[0x20000/2]; m_delayed_iop_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(adsp21062_device::sharc_iop_delayed_write_callback), this)); for (int i=0; i < 12; i++) { m_dma_op[i].src = 0; m_dma_op[i].dst = 0; m_dma_op[i].chain_ptr = 0; m_dma_op[i].src_modifier = 0; m_dma_op[i].dst_modifier = 0; m_dma_op[i].src_count = 0; m_dma_op[i].dst_count = 0; m_dma_op[i].pmode = 0; m_dma_op[i].chained_direction = 0; m_dma_op[i].active = false; m_dma_op[i].timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(adsp21062_device::sharc_dma_callback), this)); } for (int i=0; i < 16; i++) { m_r[i].r = 0; m_reg_alt[i].r = 0; } m_mrf = 0; m_mrb = 0; for (int i=0; i < 32; i++) { m_pcstack[i] = 0; } for (int i=0; i < 6; i++) { m_lcstack[i] = 0; m_lastack[i] = 0; } m_pcstk = 0; m_laddr.addr = m_laddr.code = m_laddr.loop_type = 0; m_curlcntr = 0; m_lcntr = 0; for (int i=0; i < 8; i++) { m_dag1.i[i] = m_dag1.m[i] = m_dag1.b[i] = m_dag1.l[i] = 0; m_dag2.i[i] = m_dag2.m[i] = m_dag2.b[i] = m_dag2.l[i] = 0; m_dag1_alt.i[i] = m_dag1_alt.m[i] = m_dag1_alt.b[i] = m_dag1_alt.l[i] = 0; m_dag2_alt.i[i] = m_dag2_alt.m[i] = m_dag2_alt.b[i] = m_dag2_alt.l[i] = 0; } for (int i=0; i < 12; i++) { m_dma[i].control = 0; m_dma[i].int_index = 0; m_dma[i].int_modifier = 0; m_dma[i].int_count = 0; m_dma[i].chain_ptr = 0; m_dma[i].gen_purpose = 0; m_dma[i].ext_index = 0; m_dma[i].ext_modifier = 0; m_dma[i].ext_count = 0; } m_mode1 = 0; m_mode2 = 0; m_astat = 0; m_irptl = 0; m_imask = 0; m_imaskp = 0; m_ustat1 = 0; m_ustat2 = 0; m_flag[0] = m_flag[1] = m_flag[2] = m_flag[3] = 0; m_syscon = 0; m_sysstat = 0; for (int i=0; i < 5; i++) { m_status_stack[i].mode1 = 0; m_status_stack[i].astat = 0; } m_status_stkp = 0; m_px = 0; m_opcode = 0; m_irq_active = 0; m_active_irq_num = 0; m_dma_status = 0; m_iop_delayed_reg = 0; m_iop_delayed_data = 0; m_delay_slot1 = 0; m_delay_slot2 = 0; m_systemreg_latency_cycles = 0; m_systemreg_latency_reg = 0; m_systemreg_latency_data = 0; m_systemreg_previous_data = 0; m_astat_old = 0; m_astat_old_old = 0; m_astat_old_old_old = 0; save_item(NAME(m_pc)); save_pointer(NAME(&m_r[0].r), ARRAY_LENGTH(m_r)); save_pointer(NAME(&m_reg_alt[0].r), ARRAY_LENGTH(m_reg_alt)); save_item(NAME(m_mrf)); save_item(NAME(m_mrb)); save_item(NAME(m_pcstack)); save_item(NAME(m_lcstack)); save_item(NAME(m_lastack)); save_item(NAME(m_lstkp)); save_item(NAME(m_faddr)); save_item(NAME(m_daddr)); save_item(NAME(m_pcstk)); save_item(NAME(m_pcstkp)); save_item(NAME(m_laddr.addr)); save_item(NAME(m_laddr.code)); save_item(NAME(m_laddr.loop_type)); save_item(NAME(m_curlcntr)); save_item(NAME(m_lcntr)); save_item(NAME(m_dag1.i)); save_item(NAME(m_dag1.m)); save_item(NAME(m_dag1.b)); save_item(NAME(m_dag1.l)); save_item(NAME(m_dag2.i)); save_item(NAME(m_dag2.m)); save_item(NAME(m_dag2.b)); save_item(NAME(m_dag2.l)); save_item(NAME(m_dag1_alt.i)); save_item(NAME(m_dag1_alt.m)); save_item(NAME(m_dag1_alt.b)); save_item(NAME(m_dag1_alt.l)); save_item(NAME(m_dag2_alt.i)); save_item(NAME(m_dag2_alt.m)); save_item(NAME(m_dag2_alt.b)); save_item(NAME(m_dag2_alt.l)); for (saveindex = 0; saveindex < ARRAY_LENGTH(m_dma); saveindex++) { save_item(NAME(m_dma[saveindex].control), saveindex); save_item(NAME(m_dma[saveindex].int_index), saveindex); save_item(NAME(m_dma[saveindex].int_modifier), saveindex); save_item(NAME(m_dma[saveindex].int_count), saveindex); save_item(NAME(m_dma[saveindex].chain_ptr), saveindex); save_item(NAME(m_dma[saveindex].gen_purpose), saveindex); save_item(NAME(m_dma[saveindex].ext_index), saveindex); save_item(NAME(m_dma[saveindex].ext_modifier), saveindex); save_item(NAME(m_dma[saveindex].ext_count), saveindex); } save_item(NAME(m_mode1)); save_item(NAME(m_mode2)); save_item(NAME(m_astat)); save_item(NAME(m_stky)); save_item(NAME(m_irptl)); save_item(NAME(m_imask)); save_item(NAME(m_imaskp)); save_item(NAME(m_ustat1)); save_item(NAME(m_ustat2)); save_item(NAME(m_flag)); save_item(NAME(m_syscon)); save_item(NAME(m_sysstat)); for (saveindex = 0; saveindex < ARRAY_LENGTH(m_status_stack); saveindex++) { save_item(NAME(m_status_stack[saveindex].mode1), saveindex); save_item(NAME(m_status_stack[saveindex].astat), saveindex); } save_item(NAME(m_status_stkp)); save_item(NAME(m_px)); save_pointer(NAME(m_internal_ram), 2 * 0x10000); save_item(NAME(m_opcode)); save_item(NAME(m_nfaddr)); save_item(NAME(m_idle)); save_item(NAME(m_irq_active)); save_item(NAME(m_active_irq_num)); for (saveindex = 0; saveindex < ARRAY_LENGTH(m_dma_op); saveindex++) { save_item(NAME(m_dma_op[saveindex].src), saveindex); save_item(NAME(m_dma_op[saveindex].dst), saveindex); save_item(NAME(m_dma_op[saveindex].chain_ptr), saveindex); save_item(NAME(m_dma_op[saveindex].src_modifier), saveindex); save_item(NAME(m_dma_op[saveindex].dst_modifier), saveindex); save_item(NAME(m_dma_op[saveindex].src_count), saveindex); save_item(NAME(m_dma_op[saveindex].dst_count), saveindex); save_item(NAME(m_dma_op[saveindex].pmode), saveindex); save_item(NAME(m_dma_op[saveindex].chained_direction), saveindex); save_item(NAME(m_dma_op[saveindex].active), saveindex); } save_item(NAME(m_dma_status)); save_item(NAME(m_interrupt_active)); save_item(NAME(m_iop_delayed_reg)); save_item(NAME(m_iop_delayed_data)); save_item(NAME(m_delay_slot1)); save_item(NAME(m_delay_slot2)); save_item(NAME(m_systemreg_latency_cycles)); save_item(NAME(m_systemreg_latency_reg)); save_item(NAME(m_systemreg_latency_data)); save_item(NAME(m_systemreg_previous_data)); save_item(NAME(m_astat_old)); save_item(NAME(m_astat_old_old)); save_item(NAME(m_astat_old_old_old)); state_add( SHARC_PC, "PC", m_pc).formatstr("%08X"); state_add( SHARC_PCSTK, "PCSTK", m_pcstk).formatstr("%08X"); state_add( SHARC_PCSTKP, "PCSTKP", m_pcstkp).formatstr("%08X"); state_add( SHARC_LSTKP, "LSTKP", m_lstkp).formatstr("%08X"); state_add( SHARC_FADDR, "FADDR", m_faddr).formatstr("%08X"); state_add( SHARC_DADDR, "DADDR", m_daddr).formatstr("%08X"); state_add( SHARC_MODE1, "MODE1", m_mode1).formatstr("%08X"); state_add( SHARC_MODE2, "MODE2", m_mode2).formatstr("%08X"); state_add( SHARC_ASTAT, "ASTAT", m_astat).formatstr("%08X"); state_add( SHARC_IRPTL, "IRPTL", m_irptl).formatstr("%08X"); state_add( SHARC_IMASK, "IMASK", m_imask).formatstr("%08X"); state_add( SHARC_USTAT1, "USTAT1", m_ustat1).formatstr("%08X"); state_add( SHARC_USTAT2, "USTAT2", m_ustat2).formatstr("%08X"); state_add( SHARC_STSTKP, "STSTKP", m_status_stkp).formatstr("%08X"); state_add( SHARC_R0, "R0", m_r[0].r).formatstr("%08X"); state_add( SHARC_R1, "R1", m_r[1].r).formatstr("%08X"); state_add( SHARC_R2, "R2", m_r[2].r).formatstr("%08X"); state_add( SHARC_R3, "R3", m_r[3].r).formatstr("%08X"); state_add( SHARC_R4, "R4", m_r[4].r).formatstr("%08X"); state_add( SHARC_R5, "R5", m_r[5].r).formatstr("%08X"); state_add( SHARC_R6, "R6", m_r[6].r).formatstr("%08X"); state_add( SHARC_R7, "R7", m_r[7].r).formatstr("%08X"); state_add( SHARC_R8, "R8", m_r[8].r).formatstr("%08X"); state_add( SHARC_R9, "R9", m_r[9].r).formatstr("%08X"); state_add( SHARC_R10, "R10", m_r[10].r).formatstr("%08X"); state_add( SHARC_R11, "R11", m_r[11].r).formatstr("%08X"); state_add( SHARC_R12, "R12", m_r[12].r).formatstr("%08X"); state_add( SHARC_R13, "R13", m_r[13].r).formatstr("%08X"); state_add( SHARC_R14, "R14", m_r[14].r).formatstr("%08X"); state_add( SHARC_R15, "R15", m_r[15].r).formatstr("%08X"); state_add( SHARC_I0, "I0", m_dag1.i[0]).formatstr("%08X"); state_add( SHARC_I1, "I1", m_dag1.i[1]).formatstr("%08X"); state_add( SHARC_I2, "I2", m_dag1.i[2]).formatstr("%08X"); state_add( SHARC_I3, "I3", m_dag1.i[3]).formatstr("%08X"); state_add( SHARC_I4, "I4", m_dag1.i[4]).formatstr("%08X"); state_add( SHARC_I5, "I5", m_dag1.i[5]).formatstr("%08X"); state_add( SHARC_I6, "I6", m_dag1.i[6]).formatstr("%08X"); state_add( SHARC_I7, "I7", m_dag1.i[7]).formatstr("%08X"); state_add( SHARC_I8, "I8", m_dag2.i[0]).formatstr("%08X"); state_add( SHARC_I9, "I9", m_dag2.i[1]).formatstr("%08X"); state_add( SHARC_I10, "I10", m_dag2.i[2]).formatstr("%08X"); state_add( SHARC_I11, "I11", m_dag2.i[3]).formatstr("%08X"); state_add( SHARC_I12, "I12", m_dag2.i[4]).formatstr("%08X"); state_add( SHARC_I13, "I13", m_dag2.i[5]).formatstr("%08X"); state_add( SHARC_I14, "I14", m_dag2.i[6]).formatstr("%08X"); state_add( SHARC_I15, "I15", m_dag2.i[7]).formatstr("%08X"); state_add( SHARC_M0, "M0", m_dag1.m[0]).formatstr("%08X"); state_add( SHARC_M1, "M1", m_dag1.m[1]).formatstr("%08X"); state_add( SHARC_M2, "M2", m_dag1.m[2]).formatstr("%08X"); state_add( SHARC_M3, "M3", m_dag1.m[3]).formatstr("%08X"); state_add( SHARC_M4, "M4", m_dag1.m[4]).formatstr("%08X"); state_add( SHARC_M5, "M5", m_dag1.m[5]).formatstr("%08X"); state_add( SHARC_M6, "M6", m_dag1.m[6]).formatstr("%08X"); state_add( SHARC_M7, "M7", m_dag1.m[7]).formatstr("%08X"); state_add( SHARC_M8, "M8", m_dag2.m[0]).formatstr("%08X"); state_add( SHARC_M9, "M9", m_dag2.m[1]).formatstr("%08X"); state_add( SHARC_M10, "M10", m_dag2.m[2]).formatstr("%08X"); state_add( SHARC_M11, "M11", m_dag2.m[3]).formatstr("%08X"); state_add( SHARC_M12, "M12", m_dag2.m[4]).formatstr("%08X"); state_add( SHARC_M13, "M13", m_dag2.m[5]).formatstr("%08X"); state_add( SHARC_M14, "M14", m_dag2.m[6]).formatstr("%08X"); state_add( SHARC_M15, "M15", m_dag2.m[7]).formatstr("%08X"); state_add( SHARC_L0, "L0", m_dag1.l[0]).formatstr("%08X"); state_add( SHARC_L1, "L1", m_dag1.l[1]).formatstr("%08X"); state_add( SHARC_L2, "L2", m_dag1.l[2]).formatstr("%08X"); state_add( SHARC_L3, "L3", m_dag1.l[3]).formatstr("%08X"); state_add( SHARC_L4, "L4", m_dag1.l[4]).formatstr("%08X"); state_add( SHARC_L5, "L5", m_dag1.l[5]).formatstr("%08X"); state_add( SHARC_L6, "L6", m_dag1.l[6]).formatstr("%08X"); state_add( SHARC_L7, "L7", m_dag1.l[7]).formatstr("%08X"); state_add( SHARC_L8, "L8", m_dag2.l[0]).formatstr("%08X"); state_add( SHARC_L9, "L9", m_dag2.l[1]).formatstr("%08X"); state_add( SHARC_L10, "L10", m_dag2.l[2]).formatstr("%08X"); state_add( SHARC_L11, "L11", m_dag2.l[3]).formatstr("%08X"); state_add( SHARC_L12, "L12", m_dag2.l[4]).formatstr("%08X"); state_add( SHARC_L13, "L13", m_dag2.l[5]).formatstr("%08X"); state_add( SHARC_L14, "L14", m_dag2.l[6]).formatstr("%08X"); state_add( SHARC_L15, "L15", m_dag2.l[7]).formatstr("%08X"); state_add( SHARC_B0, "B0", m_dag1.b[0]).formatstr("%08X"); state_add( SHARC_B1, "B1", m_dag1.b[1]).formatstr("%08X"); state_add( SHARC_B2, "B2", m_dag1.b[2]).formatstr("%08X"); state_add( SHARC_B3, "B3", m_dag1.b[3]).formatstr("%08X"); state_add( SHARC_B4, "B4", m_dag1.b[4]).formatstr("%08X"); state_add( SHARC_B5, "B5", m_dag1.b[5]).formatstr("%08X"); state_add( SHARC_B6, "B6", m_dag1.b[6]).formatstr("%08X"); state_add( SHARC_B7, "B7", m_dag1.b[7]).formatstr("%08X"); state_add( SHARC_B8, "B8", m_dag2.b[0]).formatstr("%08X"); state_add( SHARC_B9, "B9", m_dag2.b[1]).formatstr("%08X"); state_add( SHARC_B10, "B10", m_dag2.b[2]).formatstr("%08X"); state_add( SHARC_B11, "B11", m_dag2.b[3]).formatstr("%08X"); state_add( SHARC_B12, "B12", m_dag2.b[4]).formatstr("%08X"); state_add( SHARC_B13, "B13", m_dag2.b[5]).formatstr("%08X"); state_add( SHARC_B14, "B14", m_dag2.b[6]).formatstr("%08X"); state_add( SHARC_B15, "B15", m_dag2.b[7]).formatstr("%08X"); state_add( STATE_GENPC, "GENPC", m_pc).noshow(); m_icountptr = &m_icount; } void adsp21062_device::device_reset() { memset(m_internal_ram, 0, 2 * 0x10000 * sizeof(UINT16)); switch(m_boot_mode) { case BOOT_MODE_EPROM: { m_dma[6].int_index = 0x20000; m_dma[6].int_modifier = 1; m_dma[6].int_count = 0x100; m_dma[6].ext_index = 0x400000; m_dma[6].ext_modifier = 1; m_dma[6].ext_count = 0x600; m_dma[6].control = 0x2a1; sharc_dma_exec(6); dma_op(6); m_dma_op[6].timer->adjust(attotime::never, 0); break; } case BOOT_MODE_HOST: { m_dma[6].int_index = 0x20000; m_dma[6].int_modifier = 1; m_dma[6].int_count = 0x100; m_dma[6].control = 0xa1; break; } default: fatalerror("SHARC: Unimplemented boot mode %d\n", m_boot_mode); } m_pc = 0x20004; m_extdma_shift = 0; m_daddr = m_pc + 1; m_faddr = m_daddr + 1; m_nfaddr = m_faddr+1; m_idle = 0; m_stky = 0x5400000; m_lstkp = 0; m_pcstkp = 0; m_interrupt_active = 0; } void adsp21062_device::execute_set_input(int irqline, int state) { if (irqline >= 0 && irqline <= 2) { if (state == ASSERT_LINE) { m_irq_active |= 1 << (8-irqline); } else { m_irq_active &= ~(1 << (8-irqline)); } } else if (irqline >= SHARC_INPUT_FLAG0 && irqline <= SHARC_INPUT_FLAG3) { set_flag_input(irqline - SHARC_INPUT_FLAG0, state); } } void adsp21062_device::set_flag_input(int flag_num, int state) { if (flag_num >= 0 && flag_num < 4) { // Check if flag is set to input in MODE2 (bit == 0) if ((m_mode2 & (1 << (flag_num+15))) == 0) { m_flag[flag_num] = state ? 1 : 0; } else { fatalerror("sharc_set_flag_input: flag %d is set output!\n", flag_num); } } } void adsp21062_device::check_interrupts() { int i; if ((m_imask & m_irq_active) && (m_mode1 & MODE1_IRPTEN) && !m_interrupt_active && m_pc != m_delay_slot1 && m_pc != m_delay_slot2) { int which = 0; for (i=0; i < 32; i++) { if (m_irq_active & (1 << i)) { break; } which++; } if (m_idle) { PUSH_PC(m_pc+1); } else { PUSH_PC(m_daddr); } m_irptl |= 1 << which; if (which >= 6 && which <= 8) { PUSH_STATUS_STACK(); } CHANGE_PC(0x20000 + (which * 0x4)); /* TODO: alter IMASKP */ m_active_irq_num = which; m_irq_active &= ~(1 << which); m_interrupt_active = 1; } } void adsp21062_device::execute_run() { if (m_idle && m_irq_active == 0) { m_icount = 0; debugger_instruction_hook(this, m_daddr); } if (m_irq_active != 0) { check_interrupts(); m_idle = 0; } while (m_icount > 0 && !m_idle) { m_pc = m_daddr; m_daddr = m_faddr; m_faddr = m_nfaddr; m_nfaddr++; m_astat_old_old_old = m_astat_old_old; m_astat_old_old = m_astat_old; m_astat_old = m_astat; m_opcode = ROPCODE(m_pc); debugger_instruction_hook(this, m_pc); // handle looping if (m_pc == m_laddr.addr) { switch (m_laddr.loop_type) { case 0: // arithmetic condition-based { int condition = m_laddr.code; { UINT32 looptop = TOP_PC(); if (m_pc - looptop > 2) { m_astat = m_astat_old_old_old; } } if (DO_CONDITION_CODE(condition)) { POP_LOOP(); POP_PC(); } else { CHANGE_PC(TOP_PC()); } m_astat = m_astat_old; break; } case 1: // counter-based, length 1 { //fatalerror("SHARC: counter-based loop, length 1 at %08X\n", m_pc); //break; } case 2: // counter-based, length 2 { //fatalerror("SHARC: counter-based loop, length 2 at %08X\n", m_pc); //break; } case 3: // counter-based, length >2 { --m_lcstack[m_lstkp]; --m_curlcntr; if (m_curlcntr == 0) { POP_LOOP(); POP_PC(); } else { CHANGE_PC(TOP_PC()); } } } } (this->*m_sharc_op[(m_opcode >> 39) & 0x1ff])(); // System register latency effect if (m_systemreg_latency_cycles > 0) { --m_systemreg_latency_cycles; if (m_systemreg_latency_cycles <= 0) { systemreg_write_latency_effect(); } } --m_icount; }; } bool adsp21062_device::memory_read(address_spacenum spacenum, offs_t offset, int size, UINT64 &value) { if (spacenum == AS_PROGRAM) { int address = offset >> 3; if (address >= 0x20000 && address < 0x30000) { switch (size) { case 1: { int frac = offset & 7; value = (pm_read48(offset >> 3) >> ((frac^7) * 8)) & 0xff; break; } case 8: { value = pm_read48(offset >> 3); break; } } } else { value = 0; } } else if (spacenum == AS_DATA) { int address = offset >> 2; if (address >= 0x20000) { switch (size) { case 1: { int frac = offset & 3; value = (dm_read32(offset >> 2) >> ((frac^3) * 8)) & 0xff; break; } case 2: { int frac = (offset >> 1) & 1; value = (dm_read32(offset >> 2) >> ((frac^1) * 16)) & 0xffff; break; } case 4: { value = dm_read32(offset >> 2); break; } } } else { value = 0; } } return true; } bool adsp21062_device::memory_readop(offs_t offset, int size, UINT64 &value) { UINT64 mask = (size < 8) ? (((UINT64)1 << (8 * size)) - 1) : ~(UINT64)0; int shift = 8 * (offset & 7); offset >>= 3; if (offset >= 0x20000 && offset < 0x28000) { UINT64 op = ((UINT64)(m_internal_ram_block0[((offset-0x20000) * 3) + 0]) << 32) | ((UINT64)(m_internal_ram_block0[((offset-0x20000) * 3) + 1]) << 16) | ((UINT64)(m_internal_ram_block0[((offset-0x20000) * 3) + 2]) << 0); value = (op >> shift) & mask; return true; } else if (offset >= 0x28000 && offset < 0x30000) { UINT64 op = ((UINT64)(m_internal_ram_block1[((offset-0x28000) * 3) + 0]) << 32) | ((UINT64)(m_internal_ram_block1[((offset-0x28000) * 3) + 1]) << 16) | ((UINT64)(m_internal_ram_block1[((offset-0x28000) * 3) + 2]) << 0); value = (op >> shift) & mask; return true; } return false; }