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"Pointer-ified" the mcs51 core

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This commit is contained in:
Couriersud 2008-11-05 00:10:21 +00:00
parent 94e16603c5
commit 82c3ffc153
2 changed files with 556 additions and 530 deletions
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856
src/emu/cpu/mcs51/mcs51.c
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File diff suppressed because it is too large Load Diff

230
src/emu/cpu/mcs51/mcs51ops.c
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@ -5,17 +5,17 @@
********************************************************************************************/
//ACALL code addr /* 1: aaa1 0001 */
INLINE void acall(UINT8 op)
OPHANDLER( acall )
{
UINT8 addr = ROP_ARG(PC++); //Grab code address byte
PUSH_PC(); //Save PC to the stack
//Thanks Gerrit for help with this! :)
PC = (PC & 0xf800) | ((op & 0xe0) << 3) | addr;
PC = (PC & 0xf800) | ((r & 0xe0) << 3) | addr;
change_pc(PC);
}
//ADD A, #data /* 1: 0010 0100 */
INLINE void add_a_byte(void)
OPHANDLER( add_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
UINT8 result = ACC + data; //Add data to accumulator
@ -24,7 +24,7 @@ INLINE void add_a_byte(void)
}
//ADD A, data addr /* 1: 0010 0101 */
INLINE void add_a_mem(void)
OPHANDLER( add_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -34,7 +34,7 @@ INLINE void add_a_mem(void)
}
//ADD A, @R0/@R1 /* 1: 0010 011i */
INLINE void add_a_ir(int r)
OPHANDLER( add_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data from memory pointed to by R0 or R1
UINT8 result = ACC + data; //Add data to accumulator
@ -43,7 +43,7 @@ INLINE void add_a_ir(int r)
}
//ADD A, R0 to R7 /* 1: 0010 1rrr */
INLINE void add_a_r(int r)
OPHANDLER( add_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0 - R7
UINT8 result = ACC + data; //Add data to accumulator
@ -52,7 +52,7 @@ INLINE void add_a_r(int r)
}
//ADDC A, #data /* 1: 0011 0100 */
INLINE void addc_a_byte(void)
OPHANDLER( addc_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
UINT8 result = ACC + data + GET_CY; //Add data + carry flag to accumulator
@ -61,7 +61,7 @@ INLINE void addc_a_byte(void)
}
//ADDC A, data addr /* 1: 0011 0101 */
INLINE void addc_a_mem(void)
OPHANDLER( addc_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -71,7 +71,7 @@ INLINE void addc_a_mem(void)
}
//ADDC A, @R0/@R1 /* 1: 0011 011i */
INLINE void addc_a_ir(int r)
OPHANDLER( addc_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data from memory pointed to by R0 or R1
UINT8 result = ACC + data + GET_CY; //Add data + carry flag to accumulator
@ -80,7 +80,7 @@ INLINE void addc_a_ir(int r)
}
//ADDC A, R0 to R7 /* 1: 0011 1rrr */
INLINE void addc_a_r(int r)
OPHANDLER( addc_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0 - R7
UINT8 result = ACC + data + GET_CY; //Add data + carry flag to accumulator
@ -89,16 +89,16 @@ INLINE void addc_a_r(int r)
}
//AJMP code addr /* 1: aaa0 0001 */
INLINE void ajmp(UINT8 op)
OPHANDLER( ajmp )
{
UINT8 addr = ROP_ARG(PC++); //Grab code address byte
//Thanks Gerrit for help with this! :)
PC = (PC & 0xf800) | ((op & 0xe0) << 3) | addr;
PC = (PC & 0xf800) | ((r & 0xe0) << 3) | addr;
change_pc(PC);
}
//ANL data addr, A /* 1: 0101 0010 */
INLINE void anl_mem_a(void)
OPHANDLER( anl_mem_a )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -106,7 +106,7 @@ INLINE void anl_mem_a(void)
}
//ANL data addr, #data /* 1: 0101 0011 */
INLINE void anl_mem_byte(void)
OPHANDLER( anl_mem_byte )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = ROP_ARG(PC++); //Grab data
@ -115,14 +115,14 @@ INLINE void anl_mem_byte(void)
}
//ANL A, #data /* 1: 0101 0100 */
INLINE void anl_a_byte(void)
OPHANDLER( anl_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
SET_ACC(ACC & data); //Set ACC to value of ACC Logical AND with Data
}
//ANL A, data addr /* 1: 0101 0101 */
INLINE void anl_a_mem(void)
OPHANDLER( anl_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -130,21 +130,21 @@ INLINE void anl_a_mem(void)
}
//ANL A, @RO/@R1 /* 1: 0101 011i */
INLINE void anl_a_ir(int r)
OPHANDLER( anl_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data from address R0 or R1 points to
SET_ACC(ACC & data); //Set ACC to value of ACC Logical AND with Data
}
//ANL A, RO to R7 /* 1: 0101 1rrr */
INLINE void anl_a_r(int r)
OPHANDLER( anl_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0 - R7
SET_ACC(ACC & data); //Set ACC to value of ACC Logical AND with Data
}
//ANL C, bit addr /* 1: 1000 0010 */
INLINE void anl_c_bitaddr(void)
OPHANDLER( anl_c_bitaddr )
{
int cy = GET_CY;
UINT8 addr = ROP_ARG(PC++); //Grab bit address
@ -153,7 +153,7 @@ INLINE void anl_c_bitaddr(void)
}
//ANL C,/bit addr /* 1: 1011 0000 */
INLINE void anl_c_nbitaddr(void)
OPHANDLER( anl_c_nbitaddr )
{
int cy = GET_CY;
UINT8 addr = ROP_ARG(PC++); //Grab bit address
@ -163,7 +163,7 @@ INLINE void anl_c_nbitaddr(void)
}
//CJNE A, #data, code addr /* 1: 1011 0100 */
INLINE void cjne_a_byte(void)
OPHANDLER( cjne_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -179,7 +179,7 @@ INLINE void cjne_a_byte(void)
}
//CJNE A, data addr, code addr /* 1: 1011 0101 */
INLINE void cjne_a_mem(void)
OPHANDLER( cjne_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -196,7 +196,7 @@ INLINE void cjne_a_mem(void)
}
//CJNE @R0/@R1, #data, code addr /* 1: 1011 011i */
INLINE void cjne_ir_byte(int r)
OPHANDLER( cjne_ir_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -213,7 +213,7 @@ INLINE void cjne_ir_byte(int r)
}
//CJNE R0 to R7, #data, code addr /* 1: 1011 1rrr */
INLINE void cjne_r_byte(int r)
OPHANDLER( cjne_r_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -230,26 +230,26 @@ INLINE void cjne_r_byte(int r)
}
//CLR bit addr /* 1: 1100 0010 */
INLINE void clr_bitaddr(void)
OPHANDLER( clr_bitaddr )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
BIT_W(addr,0); //Clear bit at specified bit address
}
//CLR C /* 1: 1100 0011 */
INLINE void clr_c(void)
OPHANDLER( clr_c )
{
SET_CY(0); //Clear Carry Flag
}
//CLR A /* 1: 1110 0100 */
INLINE void clr_a(void)
OPHANDLER( clr_a )
{
SET_ACC(0); //Clear Accumulator
}
//CPL bit addr /* 1: 1011 0010 */
INLINE void cpl_bitaddr(void)
OPHANDLER( cpl_bitaddr )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
UINT8 data = (~BIT_R(addr))&1;
@ -257,21 +257,21 @@ INLINE void cpl_bitaddr(void)
}
//CPL C /* 1: 1011 0011 */
INLINE void cpl_c(void)
OPHANDLER( cpl_c )
{
UINT8 bit = (~GET_CY)&1; //Complement Carry Flag
SET_CY(bit);
}
//CPL A /* 1: 1111 0100 */
INLINE void cpl_a(void)
OPHANDLER( cpl_a )
{
UINT8 data = ((~ACC)&0xff);
SET_ACC(data); //Complement Accumulator
}
//DA A /* 1: 1101 0100 */
INLINE void da_a(void)
OPHANDLER( da_a )
{
/*From several sources, since none said the same thing:
The decimal adjust instruction is associated with the use of the ADD and ADDC instructions.
@ -292,13 +292,13 @@ INLINE void da_a(void)
}
//DEC A /* 1: 0001 0100 */
INLINE void dec_a(void)
OPHANDLER( dec_a )
{
SET_ACC(ACC-1);
}
//DEC data addr /* 1: 0001 0101 */
INLINE void dec_mem(void)
OPHANDLER( dec_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr);
@ -306,20 +306,20 @@ INLINE void dec_mem(void)
}
//DEC @R0/@R1 /* 1: 0001 011i */
INLINE void dec_ir(int r)
OPHANDLER( dec_ir )
{
UINT8 data = IRAM_IR(R_REG(r));
IRAM_W(R_REG(r),data-1);
}
//DEC R0 to R7 /* 1: 0001 1rrr */
INLINE void dec_r(int r)
OPHANDLER( dec_r )
{
SET_REG(r, R_REG(r) - 1);
}
//DIV AB /* 1: 1000 0100 */
INLINE void div_ab(void)
OPHANDLER( div_ab )
{
if( B == 0 ) {
//Overflow flag is set!
@ -342,7 +342,7 @@ INLINE void div_ab(void)
}
//DJNZ data addr, code addr /* 1: 1101 0101 */
INLINE void djnz_mem(void)
OPHANDLER( djnz_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -355,7 +355,7 @@ INLINE void djnz_mem(void)
}
//DJNZ R0 to R7,code addr /* 1: 1101 1rrr */
INLINE void djnz_r(int r)
OPHANDLER( djnz_r )
{
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
SET_REG(r ,R_REG(r) - 1); //Decrement value
@ -367,13 +367,13 @@ INLINE void djnz_r(int r)
}
//INC A /* 1: 0000 0100 */
INLINE void inc_a(void)
OPHANDLER( inc_a )
{
SET_ACC(ACC+1);
}
//INC data addr /* 1: 0000 0101 */
INLINE void inc_mem(void)
OPHANDLER( inc_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr);
@ -381,28 +381,28 @@ INLINE void inc_mem(void)
}
//INC @R0/@R1 /* 1: 0000 011i */
INLINE void inc_ir(int r)
OPHANDLER( inc_ir )
{
UINT8 data = IRAM_IR(R_REG(r));
IRAM_W(R_REG(r),data+1);
}
//INC R0 to R7 /* 1: 0000 1rrr */
INLINE void inc_r(int r)
OPHANDLER( inc_r )
{
UINT8 data = R_REG(r);
SET_REG(r, data + 1);
}
//INC DPTR /* 1: 1010 0011 */
INLINE void inc_dptr(void)
OPHANDLER( inc_dptr )
{
UINT16 dptr = (DPTR)+1;
SET_DPTR(dptr);
}
//JB bit addr, code addr /* 1: 0010 0000 */
INLINE void jb(void)
OPHANDLER( jb )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -414,7 +414,7 @@ INLINE void jb(void)
}
//JBC bit addr, code addr /* 1: 0001 0000 */
INLINE void jbc(void)
OPHANDLER( jbc )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -426,7 +426,7 @@ INLINE void jbc(void)
}
//JC code addr /* 1: 0100 0000 */
INLINE void jc(void)
OPHANDLER( jc )
{
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
if(GET_CY) //Jump if Carry Flag Set
@ -437,14 +437,14 @@ INLINE void jc(void)
}
//JMP @A+DPTR /* 1: 0111 0011 */
INLINE void jmp_iadptr(void)
OPHANDLER( jmp_iadptr )
{
PC = ACC + DPTR;
change_pc(PC);
}
//JNB bit addr, code addr /* 1: 0011 0000 */
INLINE void jnb(void)
OPHANDLER( jnb )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
@ -456,7 +456,7 @@ INLINE void jnb(void)
}
//JNC code addr /* 1: 0101 0000 */
INLINE void jnc(void)
OPHANDLER( jnc )
{
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
if(!GET_CY) //Jump if Carry Flag not set
@ -467,7 +467,7 @@ INLINE void jnc(void)
}
//JNZ code addr /* 1: 0111 0000 */
INLINE void jnz(void)
OPHANDLER( jnz )
{
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
if(ACC != 0) //Branch if ACC is not 0
@ -478,7 +478,7 @@ INLINE void jnz(void)
}
//JZ code addr /* 1: 0110 0000 */
INLINE void jz(void)
OPHANDLER( jz )
{
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
if(ACC == 0) //Branch if ACC is 0
@ -489,7 +489,7 @@ INLINE void jz(void)
}
//LCALL code addr /* 1: 0001 0010 */
INLINE void lcall(void)
OPHANDLER( lcall )
{
UINT8 addr_hi, addr_lo;
addr_hi = ROP_ARG(PC++);
@ -500,7 +500,7 @@ INLINE void lcall(void)
}
//LJMP code addr /* 1: 0000 0010 */
INLINE void ljmp(void)
OPHANDLER( ljmp )
{
UINT8 addr_hi, addr_lo;
addr_hi = ROP_ARG(PC++);
@ -510,33 +510,33 @@ INLINE void ljmp(void)
}
//MOV A, #data /* 1: 0111 0100 */
INLINE void mov_a_byte(void)
OPHANDLER( mov_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
SET_ACC(data); //Store data to ACC
}
//MOV A, data addr /* 1: 1110 0101 */
INLINE void mov_a_mem(void)
OPHANDLER( mov_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
SET_ACC(IRAM_R(addr)); //Store contents of data address to ACC
}
//MOV A,@RO/@R1 /* 1: 1110 011i */
INLINE void mov_a_ir(int r)
OPHANDLER( mov_a_ir )
{
SET_ACC(IRAM_IR(R_REG(r))); //Store contents of address pointed by R0 or R1 to ACC
}
//MOV A,R0 to R7 /* 1: 1110 1rrr */
INLINE void mov_a_r(int r)
OPHANDLER( mov_a_r )
{
SET_ACC(R_REG(r)); //Store contents of R0 - R7 to ACC
}
//MOV data addr, #data /* 1: 0111 0101 */
INLINE void mov_mem_byte(void)
OPHANDLER( mov_mem_byte )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = ROP_ARG(PC++); //Grab data
@ -544,7 +544,7 @@ INLINE void mov_mem_byte(void)
}
//MOV data addr, data addr /* 1: 1000 0101 */
INLINE void mov_mem_mem(void)
OPHANDLER( mov_mem_mem )
{
//1st address is src, 2nd is dst, but the mov command works as mov dst,src)
UINT8 src,dst;
@ -554,35 +554,35 @@ INLINE void mov_mem_mem(void)
}
//MOV @R0/@R1, #data /* 1: 0111 011i */
INLINE void mov_ir_byte(int r)
OPHANDLER( mov_ir_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
IRAM_IW(R_REG(r),data); //Store data to address pointed by R0 or R1
}
//MOV R0 to R7, #data /* 1: 0111 1rrr */
INLINE void mov_r_byte(int r)
OPHANDLER( mov_r_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
SET_REG(r, data); //Store to R0 - R7
}
//MOV data addr, @R0/@R1 /* 1: 1000 011i */
INLINE void mov_mem_ir(int r)
OPHANDLER( mov_mem_ir )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
IRAM_W(addr,IRAM_IR(R_REG(r))); //Store contents pointed to by R0 or R1 to data address
}
//MOV data addr,R0 to R7 /* 1: 1000 1rrr */
INLINE void mov_mem_r(int r)
OPHANDLER( mov_mem_r )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
IRAM_W(addr,R_REG(r)); //Store contents of R0 - R7 to data address
}
//MOV DPTR, #data16 /* 1: 1001 0000 */
INLINE void mov_dptr_byte(void)
OPHANDLER( mov_dptr_byte )
{
UINT8 data_hi, data_lo;
data_hi = ROP_ARG(PC++); //Grab hi byte
@ -591,47 +591,47 @@ INLINE void mov_dptr_byte(void)
}
//MOV bit addr, C /* 1: 1001 0010 */
INLINE void mov_bitaddr_c(void)
OPHANDLER( mov_bitaddr_c )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
BIT_W(addr,GET_CY); //Store Carry Flag to Bit Address
}
//MOV @R0/@R1, data addr /* 1: 1010 011i */
INLINE void mov_ir_mem(int r)
OPHANDLER( mov_ir_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
IRAM_IW(R_REG(r),IRAM_R(addr)); //Store data from data address to address pointed to by R0 or R1
}
//MOV R0 to R7, data addr /* 1: 1010 1rrr */
INLINE void mov_r_mem(int r)
OPHANDLER( mov_r_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
SET_REG(r, IRAM_R(addr)); //Store to R0 - R7
}
//MOV data addr, A /* 1: 1111 0101 */
INLINE void mov_mem_a(void)
OPHANDLER( mov_mem_a )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
IRAM_W(addr,ACC); //Store A to data address
}
//MOV @R0/@R1, A /* 1: 1111 011i */
INLINE void mov_ir_a(int r)
OPHANDLER( mov_ir_a )
{
IRAM_IW(R_REG(r),ACC); //Store A to location pointed to by R0 or R1
}
//MOV R0 to R7, A /* 1: 1111 1rrr */
INLINE void mov_r_a(int r)
OPHANDLER( mov_r_a )
{
SET_REG(r, ACC); //Store A to R0-R7
}
//MOVC A, @A + PC /* 1: 1000 0011 */
INLINE void movc_a_iapc(void)
OPHANDLER( movc_a_iapc )
{
UINT8 data;
data = CODEMEM_R(ACC+PC); //Move a byte from CODE(Program) Memory and store to ACC
@ -639,14 +639,14 @@ INLINE void movc_a_iapc(void)
}
//MOV C, bit addr /* 1: 1010 0010 */
INLINE void mov_c_bitaddr(void)
OPHANDLER( mov_c_bitaddr )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
SET_CY( (BIT_R(addr)) ); //Store Bit from Bit Address to Carry Flag
}
//MOVC A, @A + DPTR /* 1: 1001 0011 */
INLINE void movc_a_iadptr(void)
OPHANDLER( movc_a_iadptr )
{
UINT8 data;
data = CODEMEM_R(ACC + DPTR); //Move a byte from CODE(Program) Memory and store to ACC
@ -655,7 +655,7 @@ INLINE void movc_a_iadptr(void)
//MOVX A,@DPTR /* 1: 1110 0000 */
//(Move External Ram 16 bit address to A)
INLINE void movx_a_idptr(void)
OPHANDLER( movx_a_idptr )
{
// UINT8 byte = DATAMEM_R(R_DPTR); //Grab 1 byte from External DATA memory pointed to by dptr
UINT32 addr = ERAM_ADDR(DPTR, 0xFFFF);
@ -665,7 +665,7 @@ INLINE void movx_a_idptr(void)
//MOVX A, @R0/@R1 /* 1: 1110 001i */
//(Move External Ram 8 bit address to A)
INLINE void movx_a_ir(int r)
OPHANDLER( movx_a_ir )
{
UINT32 addr = ERAM_ADDR(R_REG(r),0xFF); //Grab address by reading location pointed to by R0 or R1
UINT8 byte = DATAMEM_R(addr); //Grab 1 byte from External DATA memory pointed to by address
@ -674,7 +674,7 @@ INLINE void movx_a_ir(int r)
//MOVX @DPTR,A /* 1: 1111 0000 */
//(Move A to External Ram 16 bit address)
INLINE void movx_idptr_a(void)
OPHANDLER( movx_idptr_a )
{
// DATAMEM_W(R_DPTR, ACC); //Store ACC to External DATA memory address pointed to by DPTR
UINT32 addr = ERAM_ADDR(DPTR, 0xFFFF);
@ -683,14 +683,14 @@ INLINE void movx_idptr_a(void)
//MOVX @R0/@R1,A /* 1: 1111 001i */
//(Move A to External Ram 8 bit address)
INLINE void movx_ir_a(int r)
OPHANDLER( movx_ir_a )
{
UINT32 addr = ERAM_ADDR(R_REG(r),0xFF); //Grab address by reading location pointed to by R0 or R1
DATAMEM_W(addr, ACC); //Store ACC to External DATA memory address
}
//MUL AB /* 1: 1010 0100 */
INLINE void mul_ab(void)
OPHANDLER( mul_ab )
{
UINT16 result = ACC * B;
//A gets lo bits, B gets hi bits of result
@ -702,12 +702,12 @@ INLINE void mul_ab(void)
}
//NOP /* 1: 0000 0000 */
INLINE void nop(void)
OPHANDLER( nop )
{
}
//ORL data addr, A /* 1: 0100 0010 */
INLINE void orl_mem_a(void)
OPHANDLER( orl_mem_a )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -715,7 +715,7 @@ INLINE void orl_mem_a(void)
}
//ORL data addr, #data /* 1: 0100 0011 */
INLINE void orl_mem_byte(void)
OPHANDLER( orl_mem_byte )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = ROP_ARG(PC++); //Grab data
@ -724,14 +724,14 @@ INLINE void orl_mem_byte(void)
}
//ORL A, #data /* 1: 0100 0100 */
INLINE void orl_a_byte(void)
OPHANDLER( orl_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
SET_ACC(ACC | data); //Set ACC to value of ACC Logical OR with Data
}
//ORL A, data addr /* 1: 0100 0101 */
INLINE void orl_a_mem(void)
OPHANDLER( orl_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -739,21 +739,21 @@ INLINE void orl_a_mem(void)
}
//ORL A, @RO/@R1 /* 1: 0100 011i */
INLINE void orl_a_ir(int r)
OPHANDLER( orl_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data from address R0 or R1 points to
SET_ACC(ACC | data); //Set ACC to value of ACC Logical OR with Data
}
//ORL A, RO to R7 /* 1: 0100 1rrr */
INLINE void orl_a_r(int r)
OPHANDLER( orl_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0 - R7
SET_ACC(ACC | data); //Set ACC to value of ACC Logical OR with Data
}
//ORL C, bit addr /* 1: 0111 0010 */
INLINE void orl_c_bitaddr(void)
OPHANDLER( orl_c_bitaddr )
{
int cy = GET_CY;
UINT8 addr = ROP_ARG(PC++); //Grab bit address
@ -762,7 +762,7 @@ INLINE void orl_c_bitaddr(void)
}
//ORL C, /bit addr /* 1: 1010 0000 */
INLINE void orl_c_nbitaddr(void)
OPHANDLER( orl_c_nbitaddr )
{
int cy = GET_CY;
UINT8 addr = ROP_ARG(PC++); //Grab bit address
@ -772,7 +772,7 @@ INLINE void orl_c_nbitaddr(void)
}
//POP data addr /* 1: 1101 0000 */
INLINE void pop(void)
OPHANDLER( pop )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
IRAM_W(addr, IRAM_IR(SP)); //Store to contents of data addr, data pointed to by Stack - IRAM_IR needed to access upper 128 bytes of stack
@ -781,7 +781,7 @@ INLINE void pop(void)
}
//PUSH data addr /* 1: 1100 0000 */
INLINE void push(void)
OPHANDLER( push )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 tmpSP = SP+1; //Grab and Increment Stack Pointer
@ -790,20 +790,20 @@ INLINE void push(void)
}
//RET /* 1: 0010 0010 */
INLINE void ret(void)
OPHANDLER( ret )
{
POP_PC();
}
//RETI /* 1: 0011 0010 */
INLINE void reti(void)
OPHANDLER( reti )
{
POP_PC();
CLEAR_CURRENT_IRQ();
}
//RL A /* 1: 0010 0011 */
INLINE void rl_a(void)
OPHANDLER( rl_a )
{
//Left Shift A, Bit 7 carries to Bit 0
int carry = ((ACC & 0x80) >> 7);
@ -812,7 +812,7 @@ INLINE void rl_a(void)
}
//RLC A /* 1: 0011 0011 */
INLINE void rlc_a(void)
OPHANDLER( rlc_a )
{
//Left Shift A, Bit 7 goes to Carry Flag, Original Carry Flag goes to Bit 0 of ACC
int carry = ((ACC & 0x80) >> 7);
@ -822,7 +822,7 @@ INLINE void rlc_a(void)
}
//RR A /* 1: 0000 0011 */
INLINE void rr_a(void)
OPHANDLER( rr_a )
{
//Right Shift A, Bit 0 carries to Bit 7
int carry = ((ACC & 1) << 7);
@ -831,7 +831,7 @@ INLINE void rr_a(void)
}
//RRC A /* 1: 0001 0011 */
INLINE void rrc_a(void)
OPHANDLER( rrc_a )
{
//Right Shift A, Bit 0 goes to Carry Flag, Bit 7 of ACC gets set to original Carry Flag
int carry = (ACC & 1);
@ -841,20 +841,20 @@ INLINE void rrc_a(void)
}
//SETB C /* 1: 1101 0011 */
INLINE void setb_c(void)
OPHANDLER( setb_c )
{
SET_CY(1); //Set Carry Flag
}
//SETB bit addr /* 1: 1101 0010 */
INLINE void setb_bitaddr(void)
OPHANDLER( setb_bitaddr )
{
UINT8 addr = ROP_ARG(PC++); //Grab bit address
BIT_W(addr,1); //Set Bit at Bit Address
}
//SJMP code addr /* 1: 1000 0000 */
INLINE void sjmp(void)
OPHANDLER( sjmp )
{
INT8 rel_addr = ROP_ARG(PC++); //Grab relative code address
PC = PC + rel_addr; //Update PC
@ -862,7 +862,7 @@ INLINE void sjmp(void)
}
//SUBB A, #data /* 1: 1001 0100 */
INLINE void subb_a_byte(void)
OPHANDLER( subb_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
UINT8 result = ACC - data - GET_CY; //Subtract data & carry flag from accumulator
@ -872,7 +872,7 @@ INLINE void subb_a_byte(void)
}
//SUBB A, data addr /* 1: 1001 0101 */
INLINE void subb_a_mem(void)
OPHANDLER( subb_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -882,7 +882,7 @@ INLINE void subb_a_mem(void)
}
//SUBB A, @R0/@R1 /* 1: 1001 011i */
INLINE void subb_a_ir(int r)
OPHANDLER( subb_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data from memory pointed to by R0 or R1
UINT8 result = ACC - data - GET_CY; //Subtract data & carry flag from accumulator
@ -891,7 +891,7 @@ INLINE void subb_a_ir(int r)
}
//SUBB A, R0 to R7 /* 1: 1001 1rrr */
INLINE void subb_a_r(int r)
OPHANDLER( subb_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0 - R7
UINT8 result = ACC - data - GET_CY; //Subtract data & carry flag from accumulator
@ -900,7 +900,7 @@ INLINE void subb_a_r(int r)
}
//SWAP A /* 1: 1100 0100 */
INLINE void swap_a(void)
OPHANDLER( swap_a )
{
UINT8 a_nib_lo, a_nib_hi;
a_nib_hi = (ACC & 0x0f) << 4; //Grab lo byte of ACC and move to hi
@ -909,7 +909,7 @@ INLINE void swap_a(void)
}
//XCH A, data addr /* 1: 1100 0101 */
INLINE void xch_a_mem(void)
OPHANDLER( xch_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data
@ -919,7 +919,7 @@ INLINE void xch_a_mem(void)
}
//XCH A, @RO/@R1 /* 1: 1100 011i */
INLINE void xch_a_ir(int r)
OPHANDLER( xch_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data pointed to by R0 or R1
UINT8 oldACC = ACC; //Hold value of ACC
@ -928,7 +928,7 @@ INLINE void xch_a_ir(int r)
}
//XCH A, RO to R7 /* 1: 1100 1rrr */
INLINE void xch_a_r(int r)
OPHANDLER( xch_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0-R7
UINT8 oldACC = ACC; //Hold value of ACC
@ -937,7 +937,7 @@ INLINE void xch_a_r(int r)
}
//XCHD A, @R0/@R1 /* 1: 1101 011i */
INLINE void xchd_a_ir(int r)
OPHANDLER( xchd_a_ir )
{
UINT8 acc, ir_data;
ir_data = IRAM_IR(R_REG(r)); //Grab data pointed to by R0 or R1
@ -947,7 +947,7 @@ INLINE void xchd_a_ir(int r)
}
//XRL data addr, A /* 1: 0110 0010 */
INLINE void xrl_mem_a(void)
OPHANDLER( xrl_mem_a )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -955,7 +955,7 @@ INLINE void xrl_mem_a(void)
}
//XRL data addr, #data /* 1: 0110 0011 */
INLINE void xrl_mem_byte(void)
OPHANDLER( xrl_mem_byte )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = ROP_ARG(PC++); //Grab data
@ -964,14 +964,14 @@ INLINE void xrl_mem_byte(void)
}
//XRL A, #data /* 1: 0110 0100 */
INLINE void xrl_a_byte(void)
OPHANDLER( xrl_a_byte )
{
UINT8 data = ROP_ARG(PC++); //Grab data
SET_ACC(ACC ^ data); //Set ACC to value of ACC Logical XOR with Data
}
//XRL A, data addr /* 1: 0110 0101 */
INLINE void xrl_a_mem(void)
OPHANDLER( xrl_a_mem )
{
UINT8 addr = ROP_ARG(PC++); //Grab data address
UINT8 data = IRAM_R(addr); //Grab data from data address
@ -979,21 +979,21 @@ INLINE void xrl_a_mem(void)
}
//XRL A, @R0/@R1 /* 1: 0110 011i */
INLINE void xrl_a_ir(int r)
OPHANDLER( xrl_a_ir )
{
UINT8 data = IRAM_IR(R_REG(r)); //Grab data from address R0 or R1 points to
SET_ACC(ACC ^ data); //Set ACC to value of ACC Logical XOR with Data
}
//XRL A, R0 to R7 /* 1: 0110 1rrr */
INLINE void xrl_a_r(int r)
OPHANDLER( xrl_a_r )
{
UINT8 data = R_REG(r); //Grab data from R0 - R7
SET_ACC(ACC ^ data); //Set ACC to value of ACC Logical XOR with Data
}
//illegal opcodes
INLINE void illegal(UINT8 op)
OPHANDLER( illegal )
{
LOG(("i8051 #%d: illegal opcode at 0x%03x: %02x\n", cpu_getactivecpu(), PC-1, op));
LOG(("i8051 #%d: illegal opcode at 0x%03x: %02x\n", cpu_getactivecpu(), PC-1, r));
}