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
30 /*fprintf (stderr, "%s:%u:%s: *{*\n", __FILE__, __LINE__, __FUNCTION__);*/ \
31 emitpComment ("; %s:%u:%s *{*\n", __FILE__, __LINE__, __FUNCTION__); \
34 /*fprintf (stderr, "%s:%u:%s: *}*\n", __FILE__, __LINE__, __FUNCTION__);*/ \
35 emitpComment ("; %s:%u:%s *}*\n", __FILE__, __LINE__, __FUNCTION__); \
44 AOP_DPTR, AOP_DPTR2, AOP_R0, AOP_R1,
45 AOP_STK, AOP_IMMD, AOP_STR,
51 /* type asmop : a homogenised type for
52 all the different spaces an operand can be
57 short type; /* can have values
58 AOP_LIT - operand is a literal value
59 AOP_REG - is in registers
60 AOP_DIR - direct just a name
61 AOP_DPTR - dptr contains address of operand
62 AOP_DPTR2 - dptr2 contains address of operand (DS80C390 only).
63 AOP_R0/R1 - r0/r1 contains address of operand
64 AOP_STK - should be pushed on stack this
65 can happen only for the result
66 AOP_IMMD - immediate value for eg. remateriazable
67 AOP_CRY - carry contains the value of this
68 AOP_STR - array of strings
69 AOP_ACC - result is in the acc:b pair
71 short coff; /* current offset */
72 short size; /* total size */
73 unsigned code:1; /* is in Code space */
74 unsigned paged:1; /* in paged memory */
75 unsigned freed:1; /* already freed */
78 value *aop_lit; /* if literal */
79 regs *aop_reg[4]; /* array of registers */
80 char *aop_dir; /* if direct */
81 regs *aop_ptr; /* either -> to r0 or r1 */
82 char *aop_immd; /* if immediate others are implied */
83 int aop_stk; /* stack offset when AOP_STK */
84 char *aop_str[4]; /* just a string array containing the location */
91 void genpic14Code (iCode *);
93 extern unsigned fReturnSizePic;
96 #define AOP(op) op->aop
97 #define AOP_TYPE(op) AOP(op)->type
98 #define AOP_SIZE(op) AOP(op)->size
99 #define IS_AOP_PREG(x) (AOP(x) && (AOP_TYPE(x) == AOP_R1 || \
100 AOP_TYPE(x) == AOP_R0))
102 #define AOP_NEEDSACC(x) (AOP(x) && (AOP_TYPE(x) == AOP_CRY || \
103 AOP_TYPE(x) == AOP_DPTR || AOP_TYPE(x) == AOP_DPTR2 || \
106 #define AOP_INPREG(x) (x && (x->type == AOP_REG && \
107 (x->aopu.aop_reg[0] == pic14_regWithIdx(R0_IDX) || \
108 x->aopu.aop_reg[0] == pic14_regWithIdx(R1_IDX) )))
110 #define RESULTONSTACK(x) \
111 (IC_RESULT(x) && IC_RESULT(x)->aop && \
112 IC_RESULT(x)->aop->type == AOP_STK )
114 #define MOVA(x) if (strcmp(x,"a") && strcmp(x,"acc")) pic14_emitcode(";XXX mov","a,%s %s,%d",x,__FILE__,__LINE__);
115 #define CLRC pic14_emitcode(";XXX clr","c %s,%d",__FILE__,__LINE__);
117 #define BIT_NUMBER(x) (x & 7)
118 #define BIT_REGISTER(x) (x>>3)
127 #define FUNCTION_LABEL_INC 40
129 /*-----------------------------------------------------------------*/
130 /* Macros for emitting skip instructions */
131 /*-----------------------------------------------------------------*/
133 #define emitSKPC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
134 #define emitSKPNC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
135 #define emitSKPZ emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
136 #define emitSKPNZ emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
137 #define emitSKPDC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
138 #define emitSKPNDC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
139 #define emitCLRZ emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
140 #define emitCLRC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
141 #define emitCLRDC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
142 #define emitSETZ emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
143 #define emitSETC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
144 #define emitSETDC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
146 int pic14_getDataSize(operand *op);
147 void emitpcode(PIC_OPCODE poc, pCodeOp *pcop);
148 void emitpComment (const char *fmt, ...);
149 void emitpLabel(int key);
150 void pic14_emitcode (char *inst,char *fmt, ...);
151 void DEBUGpic14_emitcode (char *inst,char *fmt, ...);
152 void pic14_emitDebuggerSymbol (char *);
153 asmop *newAsmop (short type);
154 bool pic14_sameRegs (asmop *aop1, asmop *aop2 );
155 char *aopGet (asmop *aop, int offset, bool bit16, bool dname);
158 bool genPlusIncr (iCode *ic);
159 void pic14_outBitAcc(operand *result);
160 void genPlusBits (iCode *ic);
161 void genPlus (iCode *ic);
162 bool genMinusDec (iCode *ic);
163 void addSign(operand *result, int offset, int sign);
164 void genMinusBits (iCode *ic);
165 void genMinus (iCode *ic);
168 pCodeOp *popGetLabel(unsigned int key);
169 pCodeOp *popCopyReg(pCodeOpReg *pc);
170 pCodeOp *popCopyGPR2Bit(pCodeOp *pc, int bitval);
171 pCodeOp *popGetLit(unsigned int lit);
172 pCodeOp *popGetWithString(char *str, int isExtern);
173 pCodeOp *popRegFromString(char *str, int size, int offset);
174 pCodeOp *popGet (asmop *aop, int offset);//, bool bit16, bool dname);
175 pCodeOp *popGetAddr (asmop *aop, int offset);
176 pCodeOp *popGetTempReg(void);
177 void popReleaseTempReg(pCodeOp *pcop);
180 void aopPut (asmop *aop, char *s, int offset);
181 void pic14_outAcc(operand *result);
182 void aopOp (operand *op, iCode *ic, bool result);
183 void pic14_outBitC(operand *result);
184 void pic14_toBoolean(operand *oper);
185 void freeAsmop (operand *op, asmop *aaop, iCode *ic, bool pop);
186 void mov2w (asmop *aop, int offset);
187 const char *pCodeOpType( pCodeOp *pcop);