// license:BSD-3-Clause // copyright-holders:Farfetch'd, R. Belmont #include "emu.h" #include "debugger.h" #include "i960.h" CPU_DISASSEMBLE( i960 ); #ifdef _MSC_VER /* logb prototype is different for MS Visual C */ #include #define logb _logb #endif const device_type I960 = &device_creator; i960_cpu_device::i960_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : cpu_device(mconfig, I960, "i960kb", tag, owner, clock, "i960kb", __FILE__) , m_program_config("program", ENDIANNESS_LITTLE, 32, 32, 0), m_rcache_pos(0), m_SAT(0), m_PRCB(0), m_PC(0), m_AC(0), m_IP(0), m_PIP(0), m_ICR(0), m_bursting(0), m_immediate_irq(0), m_immediate_vector(0), m_immediate_pri(0), m_program(nullptr), m_direct(nullptr), m_icount(0) { } UINT32 i960_cpu_device::i960_read_dword_unaligned(UINT32 address) { if (!DWORD_ALIGNED(address)) return m_program->read_byte(address) | m_program->read_byte(address+1)<<8 | m_program->read_byte(address+2)<<16 | m_program->read_byte(address+3)<<24; else return m_program->read_dword(address); } UINT16 i960_cpu_device::i960_read_word_unaligned(UINT32 address) { if (!WORD_ALIGNED(address)) return m_program->read_byte(address) | m_program->read_byte(address+1)<<8; else return m_program->read_word(address); } void i960_cpu_device::i960_write_dword_unaligned(UINT32 address, UINT32 data) { if (!DWORD_ALIGNED(address)) { m_program->write_byte(address, data & 0xff); m_program->write_byte(address+1, (data>>8)&0xff); m_program->write_byte(address+2, (data>>16)&0xff); m_program->write_byte(address+3, (data>>24)&0xff); } else { m_program->write_dword(address, data); } } void i960_cpu_device::i960_write_word_unaligned(UINT32 address, UINT16 data) { if (!WORD_ALIGNED(address)) { m_program->write_byte(address, data & 0xff); m_program->write_byte(address+1, (data>>8)&0xff); } else { m_program->write_word(address, data); } } void i960_cpu_device::send_iac(UINT32 adr) { UINT32 iac[4]; iac[0] = m_program->read_dword(adr); iac[1] = m_program->read_dword(adr+4); iac[2] = m_program->read_dword(adr+8); iac[3] = m_program->read_dword(adr+12); switch(iac[0]>>24) { case 0x93: // reinit m_SAT = iac[1]; m_PRCB = iac[2]; m_IP = iac[3]; break; default: fatalerror("I960: %x: IAC %08x %08x %08x %08x\n", m_PIP, iac[0], iac[1], iac[2], iac[3]); } } UINT32 i960_cpu_device::get_ea(UINT32 opcode) { int abase = (opcode >> 14) & 0x1f; if(!(opcode & 0x00001000)) { // MEMA UINT32 offset = opcode & 0x1fff; if(!(opcode & 0x2000)) return offset; else return m_r[abase]+offset; } else { // MEMB int index = opcode & 0x1f; int scale = (opcode >> 7) & 0x7; int mode = (opcode >> 10) & 0xf; UINT32 ret; switch(mode) { case 0x4: return m_r[abase]; case 0x7: return m_r[abase] + (m_r[index] << scale); case 0xc: ret = m_direct->read_dword(m_IP); m_IP += 4; return ret; case 0xd: ret = m_direct->read_dword(m_IP) + m_r[abase]; m_IP += 4; return ret; case 0xe: ret = m_direct->read_dword(m_IP) + (m_r[index] << scale); m_IP += 4; return ret; case 0xf: ret = m_direct->read_dword(m_IP) + m_r[abase] + (m_r[index] << scale); m_IP += 4; return ret; default: fatalerror("I960: %x: unhandled MEMB mode %x\n", m_PIP, mode); } } } UINT32 i960_cpu_device::get_1_ri(UINT32 opcode) { if(!(opcode & 0x00000800)) return m_r[opcode & 0x1f]; else return opcode & 0x1f; } UINT32 i960_cpu_device::get_2_ri(UINT32 opcode) { if(!(opcode & 0x00001000)) return m_r[(opcode>>14) & 0x1f]; else return (opcode>>14) & 0x1f; } UINT64 i960_cpu_device::get_2_ri64(UINT32 opcode) { if(!(opcode & 0x00001000)) return m_r[(opcode>>14) & 0x1f] | ((UINT64)m_r[((opcode>>14) & 0x1f)+1]<<32); else return (opcode>>14) & 0x1f; } void i960_cpu_device::set_ri(UINT32 opcode, UINT32 val) { if(!(opcode & 0x00002000)) m_r[(opcode>>19) & 0x1f] = val; else { fatalerror("I960: %x: set_ri on literal?\n", m_PIP); } } void i960_cpu_device::set_ri2(UINT32 opcode, UINT32 val, UINT32 val2) { if(!(opcode & 0x00002000)) { m_r[(opcode>>19) & 0x1f] = val; m_r[((opcode>>19) & 0x1f)+1] = val2; } else { fatalerror("I960: %x: set_ri2 on literal?\n", m_PIP); } } void i960_cpu_device::set_ri64(UINT32 opcode, UINT64 val) { if(!(opcode & 0x00002000)) { m_r[(opcode>>19) & 0x1f] = val; m_r[((opcode>>19) & 0x1f)+1] = val >> 32; } else fatalerror("I960: %x: set_ri64 on literal?\n", m_PIP); } double i960_cpu_device::get_1_rif(UINT32 opcode) { if(!(opcode & 0x00000800)) return u2f(m_r[opcode & 0x1f]); else { int idx = opcode & 0x1f; if(idx < 4) return m_fp[idx]; if(idx == 0x16) return 1.0; return 0.0; } } double i960_cpu_device::get_2_rif(UINT32 opcode) { if(!(opcode & 0x00001000)) return u2f(m_r[(opcode>>14) & 0x1f]); else { int idx = (opcode>>14) & 0x1f; if(idx < 4) return m_fp[idx]; if(idx == 0x16) return 1.0; return 0.0; } } void i960_cpu_device::set_rif(UINT32 opcode, double val) { if(!(opcode & 0x00002000)) m_r[(opcode>>19) & 0x1f] = f2u(val); else if(!(opcode & 0x00e00000)) m_fp[(opcode>>19) & 3] = val; else fatalerror("I960: %x: set_rif on literal?\n", m_PIP); } double i960_cpu_device::get_1_rifl(UINT32 opcode) { if(!(opcode & 0x00000800)) { UINT64 v = m_r[opcode & 0x1e]; v |= ((UINT64)(m_r[(opcode & 0x1e)+1]))<<32; return u2d(v); } else { int idx = opcode & 0x1f; if(idx < 4) return m_fp[idx]; if(idx == 0x16) return 1.0; return 0.0; } } double i960_cpu_device::get_2_rifl(UINT32 opcode) { if(!(opcode & 0x00001000)) { UINT64 v = m_r[(opcode >> 14) & 0x1e]; v |= ((UINT64)(m_r[((opcode>>14) & 0x1e)+1]))<<32; return u2d(v); } else { int idx = (opcode>>14) & 0x1f; if(idx < 4) return m_fp[idx]; if(idx == 0x16) return 1.0; return 0.0; } } void i960_cpu_device::set_rifl(UINT32 opcode, double val) { if(!(opcode & 0x00002000)) { UINT64 v = d2u(val); m_r[(opcode>>19) & 0x1e] = v; m_r[((opcode>>19) & 0x1e)+1] = v>>32; } else if(!(opcode & 0x00e00000)) m_fp[(opcode>>19) & 3] = val; else fatalerror("I960: %x: set_rifl on literal?\n", m_PIP); } UINT32 i960_cpu_device::get_1_ci(UINT32 opcode) { if(!(opcode & 0x00002000)) return m_r[(opcode >> 19) & 0x1f]; else return (opcode >> 19) & 0x1f; } UINT32 i960_cpu_device::get_2_ci(UINT32 opcode) { return m_r[(opcode >> 14) & 0x1f]; } UINT32 i960_cpu_device::get_disp(UINT32 opcode) { UINT32 disp; disp = opcode & 0xffffff; if(disp & 0x00800000) disp |= 0xff000000; return disp-4; } UINT32 i960_cpu_device::get_disp_s(UINT32 opcode) { UINT32 disp; disp = opcode & 0x1fff; if(disp & 0x00001000) disp |= 0xffffe000; return disp-4; } void i960_cpu_device::cmp_s(INT32 v1, INT32 v2) { m_AC &= ~7; if(v1 v2) m_AC |= 1; } void i960_cpu_device::bxx(UINT32 opcode, int mask) { if(m_AC & mask) { m_IP += get_disp(opcode); } } void i960_cpu_device::bxx_s(UINT32 opcode, int mask) { if(m_AC & mask) { m_IP += get_disp_s(opcode); } } void i960_cpu_device::test(UINT32 opcode, int mask) { if(m_AC & mask) m_r[(opcode>>19) & 0x1f] = 1; else m_r[(opcode>>19) & 0x1f] = 0; } // interrupt dispatch void i960_cpu_device::take_interrupt(int vector, int lvl) { int int_tab = m_program->read_dword(m_PRCB+20); // interrupt table int int_SP = m_program->read_dword(m_PRCB+24); // interrupt stack int SP; UINT32 IRQV; IRQV = m_program->read_dword(int_tab + 36 + (vector-8)*4); // start the process if(!(m_PC & 0x2000)) // if this is a nested interrupt, don't re-get int_SP { SP = int_SP; } else { SP = m_r[I960_SP]; } SP = (SP + 63) & ~63; SP += 128; // emulate ElSemi's core, this fixes the crash in sonic the fighters do_call(IRQV, 7, SP); // save the processor state m_program->write_dword(m_r[I960_FP]-16, m_PC); m_program->write_dword(m_r[I960_FP]-12, m_AC); // store the vector m_program->write_dword(m_r[I960_FP]-8, vector-8); m_PC &= ~0x1f00; // clear priority, state, trace-fault pending, and trace enable m_PC |= (lvl<<16); // set CPU level to current IRQ level m_PC |= 0x2002; // set supervisor mode & interrupt flag } void i960_cpu_device::check_irqs() { int int_tab = m_program->read_dword(m_PRCB+20); // interrupt table int cpu_pri = (m_PC>>16)&0x1f; int pending_pri; int lvl, irq, take = -1; int vword; static const UINT32 lvlmask[4] = { 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 }; pending_pri = m_program->read_dword(int_tab); // read pending priorities if ((m_immediate_irq) && ((cpu_pri < m_immediate_pri) || (m_immediate_pri == 31))) { take_interrupt(m_immediate_vector, m_immediate_pri); m_immediate_irq = 0; } else { for(lvl = 31; lvl >= 0; lvl--) { if((pending_pri & (1 << lvl)) && ((cpu_pri < lvl) || (lvl == 31))) { int word, wordl, wordh; // figure out which word contains this level's priorities word = ((lvl / 4) * 4) + 4; // (lvl/4) = word address, *4 for byte address, +4 to skip pending priorities wordl = (lvl % 4) * 8; wordh = (wordl + 8) - 1; vword = m_program->read_dword(int_tab + word); // take the first vector we find for this level for (irq = wordh; irq >= wordl; irq--) { if(vword & (1 << irq)) { // clear pending bit vword &= ~(1 << irq); m_program->write_dword(int_tab + word, vword); take = irq; break; } } // if no vectors were found at our level, it's an error if(take == -1) { logerror("i960: ERROR! no vector found for pending level %d\n", lvl); // try to recover... pending_pri &= ~(1 << lvl); m_program->write_dword(int_tab, pending_pri); return; } // if no vectors are waiting for this level, clear the level bit if(!(vword & lvlmask[lvl % 4])) { pending_pri &= ~(1 << lvl); m_program->write_dword(int_tab, pending_pri); } take += ((lvl/4) * 32); take_interrupt(take, lvl); return; } } } } void i960_cpu_device::do_call(UINT32 adr, int type, UINT32 stack) { int i; UINT32 FP; // call and callx take 9 cycles base m_icount -= 9; // set the new RIP m_r[I960_RIP] = m_IP; // osd_printf_debug("CALL (type %d): FP %x, %x => %x, stack %x, rcache_pos %d\n", type, m_r[I960_FP], m_r[I960_RIP], adr, stack, m_rcache_pos); // are we out of cache entries? if (m_rcache_pos >= I960_RCACHE_SIZE) { // flush the current register set to the current frame FP = m_r[I960_FP] & ~0x3f; for (i = 0; i < 16; i++) { m_program->write_dword(FP + (i*4), m_r[i]); } } else // a cache entry is available, use it { memcpy(&m_rcache[m_rcache_pos][0], m_r, 0x10 * sizeof(UINT32)); m_rcache_frame_addr[m_rcache_pos] = m_r[I960_FP] & ~0x3f; } m_rcache_pos++; m_IP = adr; m_r[I960_PFP] = m_r[I960_FP] & ~7; m_r[I960_PFP] |= type; if(type == 7) { // interrupts need special handling // set the stack to the passed-in value to properly handle nested interrupts // (can't set it externally or the original program's SP will be lost) m_r[I960_SP] = stack; } m_r[I960_FP] = (m_r[I960_SP] + 63) & ~63; m_r[I960_SP] = m_r[I960_FP] + 64; } void i960_cpu_device::do_ret_0() { // int type = m_r[I960_PFP] & 7; m_r[I960_FP] = m_r[I960_PFP] & ~0x3f; m_rcache_pos--; // normal situation: if we're still above rcache size, we're not in cache. // abnormal situation (after the app does a FLUSHREG): rcache_pos will be 0 // coming in, but we must still treat it as a not-in-cache situation. if ((m_rcache_pos >= I960_RCACHE_SIZE) || (m_rcache_pos < 0)) { int i; for(i=0; i<0x10; i++) m_r[i] = m_program->read_dword(m_r[I960_FP]+4*i); if (m_rcache_pos < 0) { m_rcache_pos = 0; } } else { memcpy(m_r, m_rcache[m_rcache_pos], 0x10*sizeof(UINT32)); } // osd_printf_debug("RET (type %d): FP %x, %x => %x, rcache_pos %d\n", type, m_r[I960_FP], m_IP, m_r[I960_RIP], m_rcache_pos); m_IP = m_r[I960_RIP]; } void i960_cpu_device::do_ret() { UINT32 x, y; m_icount -= 7; switch(m_r[I960_PFP] & 7) { case 0: do_ret_0(); break; case 7: x = m_program->read_dword(m_r[I960_FP]-16); y = m_program->read_dword(m_r[I960_FP]-12); do_ret_0(); m_AC = y; // #### test supervisor m_PC = x; // check for another IRQ now that we're back check_irqs(); break; default: fatalerror("I960: %x: Unsupported return mode %d\n", m_PIP, m_r[I960_PFP] & 7); } } void i960_cpu_device::execute_op(UINT32 opcode) { UINT32 t1, t2; double t1f, t2f; switch(opcode >> 24) { case 0x08: // b m_icount--; m_IP += get_disp(opcode); break; case 0x09: // call do_call(m_IP+get_disp(opcode), 0, m_r[I960_SP]); break; case 0x0a: // ret do_ret(); break; case 0x0b: // bal m_icount -= 5; m_r[0x1e] = m_IP; m_IP += get_disp(opcode); break; case 0x10: // bno m_icount--; if(!(m_AC & 7)) { m_IP += get_disp(opcode); } break; case 0x11: // bg m_icount--; bxx(opcode, 1); break; case 0x12: // be m_icount--; bxx(opcode, 2); break; case 0x13: // bge m_icount--; bxx(opcode, 3); break; case 0x14: // bl m_icount--; bxx(opcode, 4); break; case 0x15: // bne m_icount--; bxx(opcode, 5); break; case 0x16: // ble m_icount--; bxx(opcode, 6); break; case 0x17: // bo m_icount--; bxx(opcode, 7); break; case 0x20: // testno m_icount--; if(!(m_AC & 7)) m_r[(opcode>>19) & 0x1f] = 1; else m_r[(opcode>>19) & 0x1f] = 0; break; case 0x21: // testg m_icount--; test(opcode, 1); break; case 0x22: // teste m_icount--; test(opcode, 2); break; case 0x23: // testge m_icount--; test(opcode, 3); break; case 0x24: // testl m_icount--; test(opcode, 4); break; case 0x25: // testne m_icount--; test(opcode, 5); break; case 0x26: // testle m_icount--; test(opcode, 6); break; case 0x27: // testo m_icount--; test(opcode, 7); break; case 0x30: // bbc m_icount -= 4; t1 = get_1_ci(opcode) & 0x1f; t2 = get_2_ci(opcode); if(!(t2 & (1<> 7) & 0xf) { case 0x0: // notbit m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 ^ (1<<(t1 & 31))); break; case 0x1: // and m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 & t1); break; case 0x2: // andnot m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 & ~t1); break; case 0x3: // setbit m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 | (1<<(t1 & 31))); break; case 0x4: // notand m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, (~t2) & t1); break; case 0x6: // xor m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 ^ t1); break; case 0x7: // or m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 | t1); break; case 0x8: // nor m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ((~t2) & (~t1))); break; case 0x9: // xnor m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ~(t2 ^ t1)); break; case 0xa: // not m_icount--; t1 = get_1_ri(opcode); set_ri(opcode, ~t1); break; case 0xb: // ornot m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 | ~t1); break; case 0xc: // clrbit m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2 & ~(1<<(t1 & 31))); break; case 0xd: // notor m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, (~t2) | t1); break; case 0xe: // nand m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ~t2 | ~t1); break; case 0xf: // alterbit m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); if(m_AC & 2) set_ri(opcode, t2 | (1<<(t1 & 31))); else set_ri(opcode, t2 & ~(1<<(t1 & 31))); break; default: fatalerror("I960: %x: Unhandled 58.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x59: switch((opcode >> 7) & 0xf) { case 0x0: // addo m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2+t1); break; case 0x1: // addi // #### overflow m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2+t1); break; case 0x2: // subo m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2-t1); break; case 0x3: // subi // #### overflow m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2-t1); break; case 0x8: // shro m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2>>t1); break; case 0xa: // shrdi m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); if(((INT32)t2) < 0) { if(t2 & ((1<>t1)+1); else set_ri(opcode, ((INT32)t2)>>t1); } else set_ri(opcode, t2>>t1); break; case 0xb: // shri m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ((INT32)t2)>>t1); break; case 0xc: // shlo m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2<>(32-t1))); break; case 0xe: // shli // missing overflow m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2<> 7) & 0xf); } break; case 0x5a: switch((opcode >> 7) & 0xf) { case 0x0: // cmpo m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); cmp_u(t1, t2); break; case 0x1: // cmpi m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); cmp_s(t1, t2); break; case 0x2: // concmpo m_icount--; if(!(m_AC & 0x4)) { t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); concmp_u(t1, t2); } break; case 0x3: // concmpi m_icount--; if(!(m_AC & 0x4)) { t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); concmp_s(t1, t2); } break; case 0x4: // cmpinco m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); cmp_u(t1, t2); set_ri(opcode, t2+1); break; case 0x5: // cmpinci m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); cmp_s(t1, t2); set_ri(opcode, t2+1); break; case 0x6: // cmpdeco m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); cmp_u(t1, t2); set_ri(opcode, t2-1); break; case 0x7: // cmpdeci m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); cmp_s(t1, t2); set_ri(opcode, t2-1); break; case 0xe: // chkbit m_icount -= 2; t1 = get_1_ri(opcode) & 0x1f; t2 = get_2_ri(opcode); if(t2 & (1<> 7) & 0xf); } break; case 0x5b: switch((opcode >> 7) & 0xf) { case 0x0: // addc { UINT64 res; m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); res = t2+(t1+((m_AC>>1)&1)); set_ri(opcode, res&0xffffffff); m_AC &= ~0x3; // clear C and V // set carry m_AC |= ((res) & (((UINT64)1) << 32)) ? 0x2 : 0; // set overflow m_AC |= (((res) ^ (t1)) & ((res) ^ (t2)) & 0x80000000) ? 1: 0; } break; case 0x2: // subc { UINT64 res; m_icount -= 2; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); res = t2-(t1+((m_AC>>1)&1)); set_ri(opcode, res&0xffffffff); m_AC &= ~0x3; // clear C and V // set carry m_AC |= ((res) & (((UINT64)1) << 32)) ? 0x2 : 0; // set overflow m_AC |= (((t2) ^ (t1)) & ((t2) ^ (res)) & 0x80000000) ? 1 : 0; } break; default: fatalerror("I960: %x: Unhandled 5b.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x5c: switch((opcode >> 7) & 0xf) { case 0xc: // mov m_icount -= 2; t1 = get_1_ri(opcode); set_ri(opcode, t1); break; default: fatalerror("I960: %x: Unhandled 5c.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x5d: switch((opcode >> 7) & 0xf) { case 0xc: // movl m_icount -= 2; t2 = (opcode>>19) & 0x1e; if(opcode & 0x00000800) { // litteral t1 = opcode & 0x1f; m_r[t2] = m_r[t2+1] = t1; } else memcpy(m_r+t2, m_r+(opcode & 0x1f), 2*sizeof(UINT32)); break; default: fatalerror("I960: %x: Unhandled 5d.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x5e: switch((opcode >> 7) & 0xf) { case 0xc: // movt m_icount -= 3; t2 = (opcode>>19) & 0x1c; if(opcode & 0x00000800) { // litteral t1 = opcode & 0x1f; m_r[t2] = m_r[t2+1] = m_r[t2+2]= t1; } else memcpy(m_r+t2, m_r+(opcode & 0x1f), 3*sizeof(UINT32)); break; default: fatalerror("I960: %x: Unhandled 5e.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x5f: switch((opcode >> 7) & 0xf) { case 0xc: // movq m_icount -= 4; t2 = (opcode>>19) & 0x1c; if(opcode & 0x00000800) { // litteral t1 = opcode & 0x1f; m_r[t2] = m_r[t2+1] = m_r[t2+2] = m_r[t2+3] = t1; } else memcpy(m_r+t2, m_r+(opcode & 0x1f), 4*sizeof(UINT32)); break; default: fatalerror("I960: %x: Unhandled 5f.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x60: switch((opcode >> 7) & 0xf) { case 0x0: // synmov m_icount -= 6; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); // interrupt control register if(t1 == 0xff000004) m_ICR = m_program->read_dword(t2); else m_program->write_dword(t1, m_program->read_dword(t2)); m_AC = (m_AC & ~7) | 2; break; case 0x2: // synmovq m_icount -= 12; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); if(t1 == 0xff000010) send_iac(t2); else { m_program->write_dword(t1, m_program->read_dword(t2)); m_program->write_dword(t1+4, m_program->read_dword(t2+4)); m_program->write_dword(t1+8, m_program->read_dword(t2+8)); m_program->write_dword(t1+12, m_program->read_dword(t2+12)); } m_AC = (m_AC & ~7) | 2; break; default: fatalerror("I960: %x: Unhandled 60.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x64: switch((opcode >> 7) & 0xf) { case 0x0: // spanbit { UINT32 res = 0xffffffff; int i; m_icount -= 10; t1 = get_1_ri(opcode); m_AC &= ~7; for (i = 31; i >= 0; i--) { if (!(t1 & (1<= 0; i--) { if (t1 & (1<> 7) & 0xf); } break; case 0x65: switch((opcode >> 7) & 0xf) { case 0x5: // modpc m_icount -= 10; t1 = m_PC; t2 = get_2_ri(opcode); m_PC = (m_PC & ~t2) | (m_r[(opcode>>19) & 0x1f] & t2); set_ri(opcode, t1); break; default: fatalerror("I960: %x: Unhandled 65.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x66: switch((opcode >> 7) & 0xf) { case 0xd: // flushreg if (m_rcache_pos > 4) { m_rcache_pos = 4; } for(t1=0; t1 < m_rcache_pos; t1++) { int i; for (i = 0; i < 0x10; i++) { m_program->write_dword(m_rcache_frame_addr[t1] + (i * sizeof(UINT32)), m_rcache[t1][i]); } } m_rcache_pos = 0; break; default: fatalerror("I960: %x: Unhandled 66.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x67: switch((opcode >> 7) & 0xf) { case 0x0: // emul m_icount -= 37; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri64(opcode, (INT64)t1 * (INT64)t2); break; case 0x1: // ediv m_icount -= 37; { UINT64 src1, src2; src1 = get_1_ri(opcode); src2 = get_2_ri64(opcode); set_ri2(opcode, src2 % src1, src2 / src1); } break; case 0x4: // cvtir m_icount -= 30; t1 = get_1_ri(opcode); set_rif(opcode, (double)(INT32)t1); break; case 0x5: // cvtilr m_icount -= 30; t1 = get_1_ri(opcode); set_rifl(opcode, (double)(INT32)t1); break; case 0x6: // scalerl m_icount -= 30; t1 = get_1_ri(opcode); t2f = get_2_rifl(opcode); set_rifl(opcode, t2f * pow(2.0, (double)(INT32)t1)); break; case 0x7: // scaler m_icount -= 30; t1 = get_1_ri(opcode); t2f = get_2_rif(opcode); set_rif(opcode, t2f * pow(2.0, (double)(INT32)t1)); break; default: fatalerror("I960: %x: Unhandled 67.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x68: switch((opcode >> 7) & 0xf) { case 0x0: // atanr m_icount -= 267; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, atan2(t2f, t1f)); break; case 0x1: // logepr m_icount -= 400; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, t2f*log(t1f+1.0)/log(2.0)); break; case 0x3: // remr m_icount -= 67; // (67 to 75878 depending on opcodes!!!) t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, fmod(t2f, t1f)); break; case 0x5: // cmpr m_icount -= 10; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); cmp_d(t1f, t2f); break; case 0x8: // sqrtr m_icount -= 104; t1f = get_1_rif(opcode); set_rif(opcode, sqrt(t1f)); break; case 0xa: // logbnr m_icount -= 37; t1f = get_1_rif(opcode); set_rif(opcode, logb(t1f)); break; case 0xb: // roundr { INT32 st1 = get_1_rif(opcode); m_icount -= 69; set_rif(opcode, (double)st1); } break; case 0xc: // sinr m_icount -= 406; t1f = get_1_rif(opcode); set_rif(opcode, sin(t1f)); break; case 0xd: // cosr m_icount -= 406; t1f = get_1_rif(opcode); set_rif(opcode, cos(t1f)); break; case 0xe: // tanr m_icount -= 293; t1f = get_1_rif(opcode); set_rif(opcode, tan(t1f)); break; default: fatalerror("I960: %x: Unhandled 68.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x69: switch((opcode >> 7) & 0xf) { case 0x0: // atanrl m_icount -= 350; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); set_rifl(opcode, atan2(t2f, t1f)); break; case 0x2: // logrl m_icount -= 438; t1f = get_1_rifl(opcode); set_rifl(opcode, log(t1f)); break; case 0x5: // cmprl m_icount -= 12; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); cmp_d(t1f, t2f); break; case 0x8: // sqrtrl m_icount -= 104; t1f = get_1_rifl(opcode); set_rifl(opcode, sqrt(t1f)); break; case 0x9: // exprl m_icount -= 334; t1f = get_1_rifl(opcode); set_rifl(opcode, pow(2.0, t1f)-1.0); break; case 0xa: // logbnrl m_icount -= 37; t1f = get_1_rifl(opcode); set_rifl(opcode, logb(t1f)); break; case 0xb: // roundrl { INT32 st1 = get_1_rifl(opcode); m_icount -= 70; set_rifl(opcode, (double)st1); } break; case 0xc: // sinrl m_icount -= 441; t1f = get_1_rifl(opcode); set_rifl(opcode, sin(t1f)); break; case 0xd: // cosrl m_icount -= 441; t1f = get_1_rifl(opcode); set_rifl(opcode, cos(t1f)); break; case 0xe: // tanrl m_icount -= 323; t1f = get_1_rifl(opcode); set_rifl(opcode, tan(t1f)); break; default: fatalerror("I960: %x: Unhandled 69.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x6c: switch((opcode >> 7) & 0xf) { case 0x0: // cvtri m_icount -= 33; t1f = get_1_rif(opcode); // apply rounding mode // we do this a little indirectly to avoid some odd GCC warnings t2f = 0.0; switch((m_AC>>30)&3) { case 0: t2f = floor(t1f+0.5); break; case 1: t2f = floor(t1f); break; case 2: t2f = ceil(t1f); break; case 3: t2f = t1f; break; } set_ri(opcode, (INT32)t2f); break; case 0x2: // cvtzri m_icount -= 43; t1f = get_1_rif(opcode); set_ri(opcode, (INT32)t1f); break; case 0x3: // cvtzril m_icount -= 44; t1f = get_1_rif(opcode); set_ri64(opcode, (INT64)t1f); break; case 0x9: // movr m_icount -= 5; t1f = get_1_rif(opcode); set_rif(opcode, t1f); break; default: fatalerror("I960: %x: Unhandled 6c.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x6d: switch((opcode >> 7) & 0xf) { case 0x9: // movrl m_icount -= 6; t1f = get_1_rifl(opcode); set_rifl(opcode, t1f); break; default: fatalerror("I960: %x: Unhandled 6d.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x6e: switch((opcode >> 7) & 0xf) { case 0x1: // movre { UINT32 *src=nullptr, *dst=nullptr; m_icount -= 8; if(!(opcode & 0x00000800)) { src = (UINT32 *)&m_r[opcode & 0x1e]; } else { int idx = opcode & 0x1f; if(idx < 4) src = (UINT32 *)&m_fp[idx]; } if(!(opcode & 0x00002000)) { dst = (UINT32 *)&m_r[(opcode>>19) & 0x1e]; } else if(!(opcode & 0x00e00000)) dst = (UINT32 *)&m_fp[(opcode>>19) & 3]; dst[0] = src[0]; dst[1] = src[1]; dst[2] = src[2]&0xffff; } break; case 0x2: // cpysre m_icount -= 8; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); if (t2f >= 0.0) set_rifl(opcode, fabs(t1f)); else set_rifl(opcode, -fabs(t1f)); break; default: fatalerror("I960: %x: Unhandled 6e.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x70: switch((opcode >> 7) & 0xf) { case 0x1: // mulo m_icount -= 18; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2*t1); break; case 0x8: // remo m_icount -= 37; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, t2%t1); break; case 0xb: // divo m_icount -= 37; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); if (t1 == 0) // HACK! set_ri(opcode, 0); else set_ri(opcode, t2/t1); break; default: fatalerror("I960: %x: Unhandled 70.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x74: switch((opcode >> 7) & 0xf) { case 0x1: // muli m_icount -= 18; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ((INT32)t2)*((INT32)t1)); break; case 0x8: // remi m_icount -= 37; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ((INT32)t2)%((INT32)t1)); break; case 0x9:{// modi INT32 src1, src2, dst; m_icount -= 37; src1 = (INT32)get_1_ri(opcode); src2 = (INT32)get_2_ri(opcode); dst = src2 - ((src2/src1)*src1); if(((src2*src1) < 0) && (dst != 0)) dst += src1; set_ri(opcode, dst); break; } case 0xb: // divi m_icount -= 37; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); set_ri(opcode, ((INT32)t2)/((INT32)t1)); break; default: fatalerror("I960: %x: Unhandled 74.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x78: switch((opcode >> 7) & 0xf) { case 0xb: // divr m_icount -= 35; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, t2f/t1f); break; case 0xc: // mulr m_icount -= 18; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, t2f*t1f); break; case 0xd: // subr m_icount -= 10; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, t2f-t1f); break; case 0xf: // addr m_icount -= 10; t1f = get_1_rif(opcode); t2f = get_2_rif(opcode); set_rif(opcode, t2f+t1f); break; default: fatalerror("I960: %x: Unhandled 78.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x79: switch((opcode >> 7) & 0xf) { case 0xb: // divrl m_icount -= 77; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); set_rifl(opcode, t2f/t1f); break; case 0xc: // mulrl m_icount -= 36; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); set_rifl(opcode, t2f*t1f); break; case 0xd: // subrl m_icount -= 13; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); set_rifl(opcode, t2f-t1f); break; case 0xf: // addrl m_icount -= 13; t1f = get_1_rifl(opcode); t2f = get_2_rifl(opcode); set_rifl(opcode, t2f+t1f); break; default: fatalerror("I960: %x: Unhandled 79.%x\n", m_PIP, (opcode >> 7) & 0xf); } break; case 0x80: // ldob m_icount -= 4; m_r[(opcode>>19)&0x1f] = m_program->read_byte(get_ea(opcode)); break; case 0x82: // stob m_icount -= 2; m_program->write_byte(get_ea(opcode), m_r[(opcode>>19)&0x1f]); break; case 0x84: // bx m_icount -= 3; m_IP = get_ea(opcode); break; case 0x85: // balx m_icount -= 5; t1 = get_ea(opcode); m_r[(opcode>>19)&0x1f] = m_IP; m_IP = t1; break; case 0x86: // callx t1 = get_ea(opcode); do_call(t1, 0, m_r[I960_SP]); break; case 0x88: // ldos m_icount -= 4; m_r[(opcode>>19)&0x1f] = i960_read_word_unaligned(get_ea(opcode)); break; case 0x8a: // stos m_icount -= 2; i960_write_word_unaligned(get_ea(opcode), m_r[(opcode>>19)&0x1f]); break; case 0x8c: // lda m_icount--; m_r[(opcode>>19)&0x1f] = get_ea(opcode); break; case 0x90: // ld m_icount -= 4; m_r[(opcode>>19)&0x1f] = i960_read_dword_unaligned(get_ea(opcode)); break; case 0x92: // st m_icount -= 2; i960_write_dword_unaligned(get_ea(opcode), m_r[(opcode>>19)&0x1f]); break; case 0x98:{// ldl int i; m_icount -= 5; t1 = get_ea(opcode); t2 = (opcode>>19)&0x1e; m_bursting = 1; for(i=0; i<2; i++) { m_r[t2+i] = i960_read_dword_unaligned(t1); if(m_bursting) t1 += 4; } break; } case 0x9a:{// stl int i; m_icount -= 3; t1 = get_ea(opcode); t2 = (opcode>>19)&0x1e; m_bursting = 1; for(i=0; i<2; i++) { i960_write_dword_unaligned(t1, m_r[t2+i]); if(m_bursting) t1 += 4; } break; } case 0xa0:{// ldt int i; m_icount -= 6; t1 = get_ea(opcode); t2 = (opcode>>19)&0x1c; m_bursting = 1; for(i=0; i<3; i++) { m_r[t2+i] = i960_read_dword_unaligned(t1); if(m_bursting) t1 += 4; } break; } case 0xa2:{// stt int i; m_icount -= 4; t1 = get_ea(opcode); t2 = (opcode>>19)&0x1c; m_bursting = 1; for(i=0; i<3; i++) { i960_write_dword_unaligned(t1, m_r[t2+i]); if(m_bursting) t1 += 4; } break; } case 0xb0:{// ldq int i; m_icount -= 7; t1 = get_ea(opcode); t2 = (opcode>>19)&0x1c; m_bursting = 1; for(i=0; i<4; i++) { m_r[t2+i] = i960_read_dword_unaligned(t1); if(m_bursting) t1 += 4; } break; } case 0xb2:{// stq int i; m_icount -= 5; t1 = get_ea(opcode); t2 = (opcode>>19)&0x1c; m_bursting = 1; for(i=0; i<4; i++) { i960_write_dword_unaligned(t1, m_r[t2+i]); if(m_bursting) t1 += 4; } break; } case 0xc0: // ldib m_icount -= 4; m_r[(opcode>>19)&0x1f] = (INT8)m_program->read_byte(get_ea(opcode)); break; case 0xc2: // stib m_icount -= 2; m_program->write_byte(get_ea(opcode), m_r[(opcode>>19)&0x1f]); break; case 0xc8: // ldis m_icount -= 4; m_r[(opcode>>19)&0x1f] = (INT16)i960_read_word_unaligned(get_ea(opcode)); break; case 0xca: // stis m_icount -= 2; i960_write_word_unaligned(get_ea(opcode), m_r[(opcode>>19)&0x1f]); break; default: fatalerror("I960: %x: Unhandled %02x\n", m_PIP, opcode >> 24); } } void i960_cpu_device::execute_run() { UINT32 opcode; check_irqs(); while(m_icount > 0) { m_PIP = m_IP; debugger_instruction_hook(this, m_IP); m_bursting = 0; opcode = m_direct->read_dword(m_IP); m_IP += 4; execute_op(opcode); } } void i960_cpu_device::execute_set_input(int irqline, int state) { int int_tab = m_program->read_dword(m_PRCB+20); // interrupt table int cpu_pri = (m_PC>>16)&0x1f; int vector =0; int priority; UINT32 pend, word, wordofs; // We support the 4 external IRQ lines in "normal" mode only. // The i960's interrupt support is a bit more complete than that, // but Namco and Sega both went for the cheapest solution. switch (irqline) { case I960_IRQ0: vector = m_ICR & 0xff; break; case I960_IRQ1: vector = (m_ICR>>8)&0xff; break; case I960_IRQ2: vector = (m_ICR>>16)&0xff; break; case I960_IRQ3: vector = (m_ICR>>24)&0xff; break; } if(!vector) { logerror("i960: interrupt line %d in IAC mode, unsupported!\n", irqline); return; } priority = vector / 8; if(state) { // check if we can take this "right now" if (((cpu_pri < priority) || (priority == 31)) && (m_immediate_irq == 0)) { m_immediate_irq = 1; m_immediate_vector = vector; m_immediate_pri = priority; } else { // store the interrupt in the "pending" table pend = m_program->read_dword(int_tab); pend |= (1 << priority); m_program->write_dword(int_tab, pend); // now bitfield-ize the vector word = ((vector / 32) * 4) + 4; wordofs = vector % 32; pend = m_program->read_dword(int_tab + word); pend |= (1 << wordofs); m_program->write_dword(int_tab + word, pend); } // and ack it to the core now that it's queued standard_irq_callback(irqline); } } void i960_cpu_device::device_start() { m_program = &space(AS_PROGRAM); m_direct = &m_program->direct(); save_item(NAME(m_IP)); save_item(NAME(m_PIP)); save_item(NAME(m_SAT)); save_item(NAME(m_PRCB)); save_item(NAME(m_PC)); save_item(NAME(m_AC)); save_item(NAME(m_ICR)); save_item(NAME(m_r)); save_item(NAME(m_fp)); save_item(NAME(m_rcache)); save_item(NAME(m_rcache_frame_addr)); save_item(NAME(m_rcache_pos)); save_item(NAME(m_immediate_irq)); save_item(NAME(m_immediate_vector)); save_item(NAME(m_immediate_pri)); state_add( I960_SAT, "sat", m_SAT).formatstr("%08X"); state_add( I960_PRCB, "prcb", m_PRCB).formatstr("%08X"); state_add( I960_PC, "pc", m_PC).formatstr("%08X"); state_add( I960_AC, "ac", m_AC).formatstr("%08X"); state_add( I960_IP, "ip", m_IP).formatstr("%08X"); state_add( I960_PIP, "pip", m_PIP).formatstr("%08X"); state_add( I960_R0, "pfp", m_r[ 0]).formatstr("%08X"); state_add( I960_R1, "sp", m_r[ 1]).formatstr("%08X"); state_add( I960_R2, "rip", m_r[ 2]).formatstr("%08X"); state_add( I960_R3, "r3", m_r[ 3]).formatstr("%08X"); state_add( I960_R4, "r4", m_r[ 4]).formatstr("%08X"); state_add( I960_R5, "r5", m_r[ 5]).formatstr("%08X"); state_add( I960_R6, "r6", m_r[ 6]).formatstr("%08X"); state_add( I960_R7, "r7", m_r[ 7]).formatstr("%08X"); state_add( I960_R8, "r8", m_r[ 8]).formatstr("%08X"); state_add( I960_R9, "r9", m_r[ 9]).formatstr("%08X"); state_add( I960_R10, "r10", m_r[10]).formatstr("%08X"); state_add( I960_R11, "r11", m_r[11]).formatstr("%08X"); state_add( I960_R12, "r12", m_r[12]).formatstr("%08X"); state_add( I960_R13, "r13", m_r[13]).formatstr("%08X"); state_add( I960_R14, "r14", m_r[14]).formatstr("%08X"); state_add( I960_R15, "r15", m_r[15]).formatstr("%08X"); state_add( I960_G0, "g0", m_r[16]).formatstr("%08X"); state_add( I960_G1, "g1", m_r[17]).formatstr("%08X"); state_add( I960_G2, "g2", m_r[18]).formatstr("%08X"); state_add( I960_G3, "g3", m_r[19]).formatstr("%08X"); state_add( I960_G4, "g4", m_r[20]).formatstr("%08X"); state_add( I960_G5, "g5", m_r[21]).formatstr("%08X"); state_add( I960_G6, "g6", m_r[22]).formatstr("%08X"); state_add( I960_G7, "g7", m_r[23]).formatstr("%08X"); state_add( I960_G8, "g8", m_r[24]).formatstr("%08X"); state_add( I960_G9, "g9", m_r[25]).formatstr("%08X"); state_add( I960_G10, "g10", m_r[26]).formatstr("%08X"); state_add( I960_G11, "g11", m_r[27]).formatstr("%08X"); state_add( I960_G12, "g12", m_r[28]).formatstr("%08X"); state_add( I960_G13, "g13", m_r[29]).formatstr("%08X"); state_add( I960_G14, "g14", m_r[30]).formatstr("%08X"); state_add( I960_G15, "fp", m_r[31]).formatstr("%08X"); state_add( STATE_GENPC, "GENPC", m_IP).noshow(); state_add( STATE_GENFLAGS, "GENFLAGS", m_AC).noshow().formatstr("%2s"); m_immediate_vector = 0; m_immediate_pri = 0; memset(m_rcache_frame_addr, 0, sizeof(m_rcache_frame_addr)); memset(m_fp, 0, sizeof(m_fp)); m_PIP = 0; m_icountptr = &m_icount; } void i960_cpu_device::state_string_export(const device_state_entry &entry, std::string &str) const { static const char *const conditions[8] = { "no", "g", "e", "ge", "l", "ne", "le", "o" }; switch (entry.index()) { case STATE_GENFLAGS: str = string_format("%s", conditions[m_AC & 7]); break; } } void i960_cpu_device::device_reset() { m_SAT = m_program->read_dword(0); m_PRCB = m_program->read_dword(4); m_IP = m_program->read_dword(12); m_PC = 0x001f2002; m_AC = 0; m_ICR = 0xff000000; m_bursting = 0; m_immediate_irq = 0; memset(m_r, 0, sizeof(m_r)); memset(m_rcache, 0, sizeof(m_rcache)); m_r[I960_FP] = m_program->read_dword(m_PRCB+24); m_r[I960_SP] = m_r[I960_FP] + 64; m_rcache_pos = 0; } offs_t i960_cpu_device::disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options) { extern CPU_DISASSEMBLE( i960 ); return CPU_DISASSEMBLE_NAME(i960)(this, buffer, pc, oprom, opram, options); }