1 /*-------------------------------------------------------------------------
2 SDCCgen51.h - header file for code generation for 8051
4 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
5 PIC port - T. Scott Dattalo scott@dattalo.com (2000)
7 This program is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 In other words, you are welcome to use, share and improve this program.
22 You are forbidden to forbid anyone else to use, share and improve
23 what you give them. Help stamp out software-hoarding!
24 -------------------------------------------------------------------------*/
26 #ifndef SDCCGENPIC14_H
27 #define SDCCGENPIC14_H
33 AOP_DPTR, AOP_DPTR2, AOP_R0, AOP_R1,
34 AOP_STK, AOP_IMMD, AOP_STR,
38 /* type asmop : a homogenised type for
39 all the different spaces an operand can be
44 short type; /* can have values
45 AOP_LIT - operand is a literal value
46 AOP_REG - is in registers
47 AOP_DIR - direct just a name
48 AOP_DPTR - dptr contains address of operand
49 AOP_DPTR2 - dptr2 contains address of operand (DS80C390 only).
50 AOP_R0/R1 - r0/r1 contains address of operand
51 AOP_STK - should be pushed on stack this
52 can happen only for the result
53 AOP_IMMD - immediate value for eg. remateriazable
54 AOP_CRY - carry contains the value of this
55 AOP_STR - array of strings
56 AOP_ACC - result is in the acc:b pair
58 short coff; /* current offset */
59 short size; /* total size */
60 unsigned code:1; /* is in Code space */
61 unsigned paged:1; /* in paged memory */
62 unsigned freed:1; /* already freed */
65 value *aop_lit; /* if literal */
66 regs *aop_reg[4]; /* array of registers */
67 char *aop_dir; /* if direct */
68 regs *aop_ptr; /* either -> to r0 or r1 */
69 char *aop_immd; /* if immediate others are implied */
70 int aop_stk; /* stack offset when AOP_STK */
71 char *aop_str[4]; /* just a string array containing the location */
77 void genpic14Code (iCode *);
79 //extern char *fReturnpic14[];
80 //extern char *fReturn390[];
81 extern unsigned fReturnSizePic;
82 //extern char **fReturn;
85 #define AOP(op) op->aop
86 #define AOP_TYPE(op) AOP(op)->type
87 #define AOP_SIZE(op) AOP(op)->size
88 #define IS_AOP_PREG(x) (AOP(x) && (AOP_TYPE(x) == AOP_R1 || \
89 AOP_TYPE(x) == AOP_R0))
91 #define AOP_NEEDSACC(x) (AOP(x) && (AOP_TYPE(x) == AOP_CRY || \
92 AOP_TYPE(x) == AOP_DPTR || AOP_TYPE(x) == AOP_DPTR2 || \
95 #define AOP_INPREG(x) (x && (x->type == AOP_REG && \
96 (x->aopu.aop_reg[0] == pic14_regWithIdx(R0_IDX) || \
97 x->aopu.aop_reg[0] == pic14_regWithIdx(R1_IDX) )))
99 #define RESULTONSTACK(x) \
100 (IC_RESULT(x) && IC_RESULT(x)->aop && \
101 IC_RESULT(x)->aop->type == AOP_STK )
103 #define MOVA(x) if (strcmp(x,"a") && strcmp(x,"acc")) pic14_emitcode(";XXX mov","a,%s %s,%d",x,__FILE__,__LINE__);
104 #define CLRC pic14_emitcode(";XXX clr","c %s,%d",__FILE__,__LINE__);
106 #define BIT_NUMBER(x) (x & 7)
107 #define BIT_REGISTER(x) (x>>3)
116 #define FUNCTION_LABEL_INC 20
118 /*-----------------------------------------------------------------*/
119 /* Macros for emitting skip instructions */
120 /*-----------------------------------------------------------------*/
122 #define emitSKPC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
123 #define emitSKPNC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
124 #define emitSKPZ emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
125 #define emitSKPNZ emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
126 #define emitSKPDC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
127 #define emitSKPNDC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
128 #define emitCLRZ emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
129 #define emitCLRC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
130 #define emitCLRDC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
131 #define emitSETZ emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
132 #define emitSETC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
133 #define emitSETDC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
135 int pic14_getDataSize(operand *op);
136 void emitpcode(PIC_OPCODE poc, pCodeOp *pcop);
137 void pic14_emitcode (char *inst,char *fmt, ...);
138 void DEBUGpic14_emitcode (char *inst,char *fmt, ...);
139 asmop *newAsmop (short type);
140 bool pic14_sameRegs (asmop *aop1, asmop *aop2 );
141 char *aopGet (asmop *aop, int offset, bool bit16, bool dname);
144 bool genPlusIncr (iCode *ic);
145 void pic14_outBitAcc(operand *result);
146 void genPlusBits (iCode *ic);
147 void genPlus (iCode *ic);
148 bool genMinusDec (iCode *ic);
149 void addSign(operand *result, int offset, int sign);
150 void genMinusBits (iCode *ic);
151 void genMinus (iCode *ic);
154 pCodeOp *popGetLabel(unsigned int key);
155 pCodeOp *popCopyReg(pCodeOpReg *pc);
156 pCodeOp *popCopyGPR2Bit(pCodeOp *pc, int bitval);
157 pCodeOp *popGetLit(unsigned int lit);
158 pCodeOp *popGetWithString(char *str);
159 pCodeOp *popRegFromString(char *str);
160 pCodeOp *popGet (asmop *aop, int offset, bool bit16, bool dname);
163 void aopPut (asmop *aop, char *s, int offset);
164 void pic14_outAcc(operand *result);
165 void aopOp (operand *op, iCode *ic, bool result);
166 void pic14_outBitC(operand *result);
167 void pic14_toBoolean(operand *oper);
168 void freeAsmop (operand *op, asmop *aaop, iCode *ic, bool pop);