// license:BSD-3-Clause // copyright-holders:Peter Trauner,Antoine Mine #ifndef MAME_CPU_SATURN_SATOPS_IPP #define MAME_CPU_SATURN_SATOPS_IPP #pragma once #include "saturn.h" #define saturn_assert(x) \ do { if (!(x)) logerror("SATURN assertion failed: %s at %s:%i, pc=%05x\n", #x, __FILE__, __LINE__, m_pc); } while (false) inline int saturn_device::READ_OP() { m_icount-=3; const uint8_t data=m_cache.read_byte(m_pc); saturn_assert(data<0x10); m_pc=(m_pc+1)&0xfffff; return data; } inline int saturn_device::READ_OP_ARG() { m_icount-=3; const uint8_t data=m_cache.read_byte(m_pc); saturn_assert(data<0x10); m_pc=(m_pc+1)&0xfffff; return data; } inline int saturn_device::READ_OP_ARG8() { const int n0=READ_OP_ARG(); const int n1=READ_OP_ARG(); return n0|(n1<<4); } inline int8_t saturn_device::READ_OP_DIS8() { return (int8_t)READ_OP_ARG8(); } inline int saturn_device::READ_OP_ARG12() { const int n0=READ_OP_ARG(); const int n1=READ_OP_ARG(); const int n2=READ_OP_ARG(); return n0|(n1<<4)|(n2<<8); } inline int saturn_device::READ_OP_DIS12() { int temp=READ_OP_ARG12(); if (temp&0x800) temp-=0x1000; return temp; } inline int saturn_device::READ_OP_ARG16() { const int n0=READ_OP_ARG(); const int n1=READ_OP_ARG(); const int n2=READ_OP_ARG(); const int n3=READ_OP_ARG(); return n0|(n1<<4)|(n2<<8)|(n3<<12); } inline int16_t saturn_device::READ_OP_DIS16() { return (int16_t)READ_OP_ARG16(); } inline int saturn_device::READ_OP_ARG20() { const int n0=READ_OP_ARG(); const int n1=READ_OP_ARG(); const int n2=READ_OP_ARG(); const int n3=READ_OP_ARG(); const int n4=READ_OP_ARG(); return n0|(n1<<4)|(n2<<8)|(n3<<12)|(n4<<16); } inline int saturn_device::READ_NIBBLE(uint32_t adr) { m_icount-=3; const uint8_t data=m_program.read_byte(adr&0xfffff); saturn_assert(data<0x10); m_crc_func(adr&0xfffff, data, 0xffffffff); return data; } inline int saturn_device::READ_8(uint32_t adr) { const int n0=READ_NIBBLE(adr); const int n1=READ_NIBBLE(adr+1); return n0|(n1<<4); } inline int saturn_device::READ_12(uint32_t adr) { const int n0=READ_NIBBLE(adr); const int n1=READ_NIBBLE(adr+1); const int n2=READ_NIBBLE(adr+2); return n0|(n1<<4)|(n2<<8); } inline int saturn_device::READ_16(uint32_t adr) { const int n0=READ_NIBBLE(adr); const int n1=READ_NIBBLE(adr+1); const int n2=READ_NIBBLE(adr+2); const int n3=READ_NIBBLE(adr+3); return n0|(n1<<4)|(n2<<8)|(n3<<12); } inline int saturn_device::READ_20(uint32_t adr) { const int n0=READ_NIBBLE(adr); const int n1=READ_NIBBLE(adr+1); const int n2=READ_NIBBLE(adr+2); const int n3=READ_NIBBLE(adr+3); const int n4=READ_NIBBLE(adr+4); return n0|(n1<<4)|(n2<<8)|(n3<<12)|(n4<<16); } inline void saturn_device::WRITE_NIBBLE(uint32_t adr, uint8_t nib) { m_icount-=3; saturn_assert(nib<0x10); m_program.write_byte(adr&0xfffff,nib); } inline int saturn_device::S64_READ_X(int r) { return m_reg[r][0]|(m_reg[r][1]<<4)|(m_reg[r][2]<<8); } inline int saturn_device::S64_READ_WORD(int r) { return m_reg[r][0]|(m_reg[r][1]<<4)|(m_reg[r][2]<<8)|(m_reg[r][3]<<12); } inline int saturn_device::S64_READ_A(int r) { return m_reg[r][0]|(m_reg[r][1]<<4)|(m_reg[r][2]<<8)|(m_reg[r][3]<<12)|(m_reg[r][4]<<16); } inline void saturn_device::S64_WRITE_X(int r, int v) { m_reg[r][0]=v&0xf; m_reg[r][1]=(v>>4)&0xf; m_reg[r][2]=(v>>8)&0xf; } inline void saturn_device::S64_WRITE_WORD(int r, int v) { m_reg[r][0]=v&0xf; m_reg[r][1]=(v>>4)&0xf; m_reg[r][2]=(v>>8)&0xf; m_reg[r][3]=(v>>12)&0xf; } inline void saturn_device::S64_WRITE_A(int r, int v) { m_reg[r][0]=v&0xf; m_reg[r][1]=(v>>4)&0xf; m_reg[r][2]=(v>>8)&0xf; m_reg[r][3]=(v>>12)&0xf; m_reg[r][4]=(v>>16)&0xf; } inline uint32_t saturn_device::saturn_pop() { const uint32_t temp=m_rstk[0]; memmove(m_rstk, m_rstk+1, sizeof(m_rstk)-sizeof(m_rstk[0])); m_rstk[7]=0; return temp; } inline void saturn_device::saturn_push(uint32_t adr) { memmove(m_rstk+1, m_rstk, sizeof(m_rstk)-sizeof(m_rstk[0])); m_rstk[0]=adr; } inline void saturn_device::saturn_interrupt_on() { LOG("SATURN at %05x: INTON\n", m_pc-4); m_irq_enable=1; if (m_irq_state) { LOG("SATURN set_irq_line(ASSERT)\n"); m_pending_irq=1; } } inline void saturn_device::saturn_interrupt_off() { LOG("SATURN at %05x: INTOFF\n", m_pc-4); m_irq_enable=0; } inline void saturn_device::saturn_reset_interrupt() { LOG("SATURN at %05x: RSI\n", m_pc-5); m_rsi_func(ASSERT_LINE); } inline void saturn_device::saturn_mem_reset() { m_reset_func(ASSERT_LINE); } inline void saturn_device::saturn_mem_config() { m_config_func(S64_READ_A(C)); } inline void saturn_device::saturn_mem_unconfig() { m_unconfig_func(S64_READ_A(C)); } inline void saturn_device::saturn_mem_id() { const int id = m_id_func(); S64_WRITE_A(C,id); m_monitor_id = id; } inline void saturn_device::saturn_shutdown() { m_sleeping=1; m_irq_enable=1; LOG("SATURN at %05x: SHUTDN\n", m_pc-3); } inline void saturn_device::saturn_bus_command_b() { logerror("SATURN at %05x: BUSCB opcode not handled\n", m_pc-4); } inline void saturn_device::saturn_bus_command_c() { logerror("SATURN at %05x: BUSCC opcode not handled\n", m_pc-3); } inline void saturn_device::saturn_bus_command_d() { logerror("SATURN at %05x: BUSCD opcode not handled\n", m_pc-4); } inline void saturn_device::saturn_serial_request() { logerror("SATURN at %05x: SREQ? opcode not handled\n", m_pc-3); } inline void saturn_device::saturn_out_c() { m_out=S64_READ_X(C); m_out_func(m_out); } inline void saturn_device::saturn_out_cs() { m_out=(m_out&0xff0)|m_reg[C][0]; m_out_func(m_out); } inline void saturn_device::saturn_in(int reg) { saturn_assert(reg>=0 && reg<9); if (!(m_pc&1)) logerror("SATURN at %05x: reg=IN opcode at odd addresse\n", m_pc-3); const int in = m_in_func(); S64_WRITE_WORD(reg,in); m_monitor_in = in; } // st related inline void saturn_device::saturn_clear_st() { m_st&=0xf000; } inline void saturn_device::saturn_st_to_c() { S64_WRITE_X(C,m_st); } inline void saturn_device::saturn_c_to_st() { m_st=(m_st&0xf000)|(S64_READ_X(C)); } inline void saturn_device::saturn_exchange_c_st() { const int t=m_st; m_st=(t&0xf000)|(S64_READ_X(C)); S64_WRITE_X(C,t); } inline void saturn_device::saturn_jump_after_test() { const int adr=READ_OP_DIS8(); if (m_carry) { if (adr==0) { m_pc=saturn_pop(); } else { m_pc=(m_pc+adr-2)&0xfffff; } } } inline void saturn_device::saturn_st_clear_bit() { m_st &= ~(1<<(READ_OP_ARG())); } inline void saturn_device::saturn_st_set_bit() { m_st |= (1<<(READ_OP_ARG())); } inline void saturn_device::saturn_st_jump_bit_clear() { m_carry=!((m_st>>(READ_OP_ARG()))&1); saturn_jump_after_test(); } inline void saturn_device::saturn_st_jump_bit_set() { m_carry=(m_st>>(READ_OP_ARG()))&1; saturn_jump_after_test(); } inline void saturn_device::saturn_hst_clear_bits() { m_hst&=~(READ_OP_ARG()); } inline void saturn_device::saturn_hst_bits_cleared() { m_carry=!(m_hst&(READ_OP_ARG())); saturn_jump_after_test(); } // p related inline void saturn_device::saturn_exchange_p() { const int nr=READ_OP_ARG(); const int t=m_p; m_p=m_reg[C][nr]; m_reg[C][nr]=t; } inline void saturn_device::saturn_p_to_c() { const int nr=READ_OP_ARG(); m_reg[C][nr]=m_p; } inline void saturn_device::saturn_c_to_p() { const int nr=READ_OP_ARG(); m_p=m_reg[C][nr]; } inline void saturn_device::saturn_dec_p() { m_carry=m_p==0; m_p=(m_p-1)&0xf; } inline void saturn_device::saturn_inc_p() { m_p=(m_p+1)&0xf; m_carry=m_p==0; } inline void saturn_device::saturn_load_p() { m_p=READ_OP_ARG(); } inline void saturn_device::saturn_p_equals() { m_carry=m_p==(READ_OP_ARG()); saturn_jump_after_test(); } inline void saturn_device::saturn_p_not_equals() { m_carry=m_p!=(READ_OP_ARG()); saturn_jump_after_test(); } inline void saturn_device::saturn_ca_p_1() { const int a=(S64_READ_A(C))+1+m_p; m_carry=a>=0x100000; S64_WRITE_A(C,a&0xfffff); } inline void saturn_device::saturn_load_reg(int reg) { int count=READ_OP_ARG(); int pos=m_p; saturn_assert(reg>=0 && reg<9); for (; count>=0; count--, pos=(pos+1)&0xf) { m_reg[reg][pos]=READ_OP_ARG(); } } inline void saturn_device::saturn_jump(int adr, int jump) { saturn_assert(adr>=0 && adr<0x100000); if (jump) { m_pc=adr; m_icount-=10; } } inline void saturn_device::saturn_call(int adr) { saturn_assert(adr>=0 && adr<0x100000); saturn_push(m_pc); m_pc=adr; //m_icount-=10; } inline void saturn_device::saturn_return(int yes) { if (yes) { m_pc=saturn_pop(); //m_icount-=10; } } inline void saturn_device::saturn_return_carry_set() { m_pc=saturn_pop(); //m_icount-=10; m_carry=1; } inline void saturn_device::saturn_return_carry_clear() { m_pc=saturn_pop(); //m_icount-=10; m_carry=0; } inline void saturn_device::saturn_return_interrupt() { LOG("SATURN at %05x: RTI\n", m_pc-2); m_in_irq=0; // set to 1 when an IRQ is taken m_pc=saturn_pop(); //m_icount-=10; } inline void saturn_device::saturn_return_xm_set() { m_pc=saturn_pop(); m_hst|=XM; //m_icount-=10; } inline void saturn_device::saturn_pop_c() { S64_WRITE_A(C,saturn_pop()); } inline void saturn_device::saturn_push_c() { saturn_push(S64_READ_A(C)); } inline void saturn_device::saturn_indirect_jump(int reg) { saturn_assert(reg>=0 && reg<9); m_pc=READ_20(S64_READ_A(reg)); } inline void saturn_device::saturn_equals_zero(int reg, int begin, int count) { saturn_assert(reg>=0 && reg<9); saturn_assert(begin>=0 && begin<16 && count>0 && begin+count<=16); m_carry=1; for (int i=0; i=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=1; for (int i=0; i=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=0; i=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=0; i=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=count-1; i>=0; i--) { const int t=m_reg[reg][begin+i]; const int t2=m_reg[right][begin+i]; if (t>t2) { m_carry=1; break; } if (t=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=1; for (int i=count-1; i>=0; i--) { const int t=m_reg[reg][begin+i]; const int t2=m_reg[right][begin+i]; if (tt2) break; m_icount-=2; } saturn_jump_after_test(); } inline void saturn_device::saturn_smaller_equals(int reg, int begin, int count, int right) { saturn_assert(reg>=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=1; for (int i=count-1; i>=0; i--) { const int t=m_reg[reg][begin+i]; const int t2=m_reg[right][begin+i]; if (t>t2) { m_carry=0; break; } if (t=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=count-1; i>=0; i--) { const int t=m_reg[reg][begin+i]; const int t2=m_reg[right][begin+i]; if (tt2) break; m_icount-=2; } saturn_jump_after_test(); } inline void saturn_device::saturn_jump_bit_clear(int reg) { const int op=READ_OP_ARG(); saturn_assert(reg>=0 && reg<9); m_carry=!((m_reg[reg][op>>2]>>(op&3))&1); saturn_jump_after_test(); } inline void saturn_device::saturn_jump_bit_set(int reg) { const int op=READ_OP_ARG(); saturn_assert(reg>=0 && reg<9); m_carry=(m_reg[reg][op>>2]>>(op&3))&1; saturn_jump_after_test(); } inline void saturn_device::saturn_load_pc(int reg) { saturn_assert(reg>=0 && reg<9); m_pc=S64_READ_A(reg); } inline void saturn_device::saturn_store_pc(int reg) { saturn_assert(reg>=0 && reg<9); S64_WRITE_A(reg,m_pc); } inline void saturn_device::saturn_exchange_pc(int reg) { const int temp=m_pc; saturn_assert(reg>=0 && reg<9); m_pc=S64_READ_A(reg); S64_WRITE_A(reg, temp); } /************************************************************************************* address register related *************************************************************************************/ inline void saturn_device::saturn_load_adr(int reg, int nibbles) { saturn_assert(reg>=0 && reg<2); saturn_assert(nibbles==2 || nibbles==4 || nibbles==5); switch (nibbles) { case 5: m_d[reg]=READ_OP_ARG20(); break; case 4: m_d[reg]=(m_d[reg]&0xf0000)|READ_OP_ARG16(); break; case 2: m_d[reg]=(m_d[reg]&0xfff00)|READ_OP_ARG8(); break; } } inline void saturn_device::saturn_add_adr(int reg) { const int t=m_d[reg]+READ_OP_ARG()+1; saturn_assert(reg>=0 && reg<2); m_d[reg]=t&0xfffff; m_carry=t>=0x100000; } inline void saturn_device::saturn_sub_adr(int reg) { const int t=m_d[reg]-READ_OP_ARG()-1; saturn_assert(reg>=0 && reg<2); m_d[reg]=t&0xfffff; m_carry=t<0; } inline void saturn_device::saturn_adr_to_reg(int adr, int reg) { saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); S64_WRITE_A(reg,m_d[adr]); } inline void saturn_device::saturn_reg_to_adr(int reg, int adr) { saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); m_d[adr]=S64_READ_A(reg); } inline void saturn_device::saturn_adr_to_reg_word(int adr, int reg) { saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); S64_WRITE_WORD(reg,m_d[adr]&0xffff); } inline void saturn_device::saturn_reg_to_adr_word(int reg, int adr) { saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); m_d[adr]=(m_d[adr]&0xf0000)|S64_READ_WORD(reg); } inline void saturn_device::saturn_exchange_adr_reg(int adr, int reg) { const int temp=m_d[adr]; saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); m_d[adr]=S64_READ_A(reg); S64_WRITE_A(reg,temp); } inline void saturn_device::saturn_exchange_adr_reg_word(int adr, int reg) { const int temp=m_d[adr]&0xffff; saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); m_d[adr]=(m_d[adr]&0xf0000)|S64_READ_WORD(reg); S64_WRITE_WORD(reg,temp); } inline void saturn_device::saturn_load_nibbles(int reg, int begin, int count, int adr) { saturn_assert(reg>=0 && reg<9); saturn_assert(adr>=0 && adr<2); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && reg<9); saturn_assert(adr>=0 && adr<2); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && reg<9); m_reg[reg][arg>>2]&=~(1<<(arg&3)); } inline void saturn_device::saturn_set_bit(int reg) { const int arg=READ_OP_ARG(); saturn_assert(reg>=0 && reg<9); m_reg[reg][arg>>2]|=1<<(arg&3); } /**************************************************************************** clear opers ****************************************************************************/ inline void saturn_device::saturn_clear(int reg, int begin, int count) { saturn_assert(reg>=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && left<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && dest<9); saturn_assert(src>=0 && src<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=0; i=base) { m_carry=1; t-=base; } else m_carry=0; saturn_assert(t>=0); saturn_assert(t=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); saturn_assert(count>1 || !m_decimal); /* SATURN bug */ for (int i=0; i>=4; if (t>=base) { right++; t-=base; } saturn_assert(t>=0); saturn_assert(t0; } /**************************************************************************** sub opers ****************************************************************************/ inline void saturn_device::saturn_sub(int reg, int begin, int count, int right) { const int base=m_decimal?10:16; saturn_assert(reg>=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=0; i=0); saturn_assert(t=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); saturn_assert(count>1 || !m_decimal); // SATURN bug for (int i=0; i>=4; if (t<0) { right++; t+=base; } saturn_assert(t>=0); saturn_assert(t0; } /**************************************************************************** sub2 opers (a=b-a) ****************************************************************************/ inline void saturn_device::saturn_sub2(int reg, int begin, int count, int right) { const int base=m_decimal?10:16; saturn_assert(reg>=0 && reg<9); saturn_assert(right>=0 && right<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=0; i=0); saturn_assert(t=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=base) m_reg[reg][begin+i]=t-base; else { m_reg[reg][begin+i]=t; break; } } m_carry=t>=base; } /**************************************************************************** decrement opers ****************************************************************************/ inline void saturn_device::saturn_decrement(int reg, int begin, int count) { int t=0; const int base=m_decimal?10:16; saturn_assert(reg>=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); m_carry=0; for (int i=0; i=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); int c=1; m_carry=0; for (int i=0; imax) n-=max+1; else c=0; saturn_assert(n>=0); saturn_assert(n<=max); m_reg[reg][begin+i]=n&0xf; m_icount-=2; } } /**************************************************************************** or opers ****************************************************************************/ inline void saturn_device::saturn_or(int dest, int begin, int count, int src) { saturn_assert(dest>=0 && dest<9); saturn_assert(src>=0 && src<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && dest<9); saturn_assert(src>=0 && src<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=0; i=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); if (m_reg[reg][begin+count-1]) m_hst|=SB; for (int i=count-1; i>=1; i--) { m_reg[reg][begin+i]=m_reg[reg][begin+i-1]; m_icount-=2; } m_reg[reg][begin]=0; m_icount-=2; } /**************************************************************************** shift nibbles right opers ****************************************************************************/ inline void saturn_device::saturn_shift_nibble_right(int reg, int begin, int count) { saturn_assert(reg>=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); if (m_reg[reg][begin]) m_hst|=SB; for (int i=1; i=0 && reg<9); for (int i=15; i>=1; i--) { m_reg[reg][i]=m_reg[reg][i-1]; m_icount-=2; } m_reg[reg][0]=x; m_icount-=2; } /**************************************************************************** rotate nibbles right opers ****************************************************************************/ inline void saturn_device::saturn_rotate_nibble_right_w(int reg) { const int x=m_reg[reg][0]; saturn_assert(reg>=0 && reg<9); for (int i=1; i<16; i++) { m_reg[reg][i-1]=m_reg[reg][i]; m_icount-=2; } m_reg[reg][15]=x; if (x) m_hst|=SB; m_icount-=2; } /**************************************************************************** shift right opers ****************************************************************************/ inline void saturn_device::saturn_shift_right(int reg, int begin, int count) { int c=0; saturn_assert(reg>=0 && reg<9); saturn_assert(begin>=0 && count>0 && begin+count<=16); for (int i=count-1; i>=0; i--) { int t=m_reg[reg][begin+i]; t|=(c<<4); c=t&1; m_reg[reg][begin+i]=t>>1; m_icount-=2; } if (c) m_hst|=SB; m_icount-=2; } #endif // MAME_CPU_SATURN_SATOPS_IPP