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
29 extern int debug_verbose;
32 /*fprintf (stderr, "%s:%u:%s: *{*\n", __FILE__, __LINE__, __FUNCTION__);*/ \
33 if (options.debug || debug_verbose) { \
34 emitpComment ("; %s:%u:%s *{*", __FILE__, __LINE__, __FUNCTION__); \
38 /*fprintf (stderr, "%s:%u:%s: *}*\n", __FILE__, __LINE__, __FUNCTION__);*/ \
39 if (options.debug || debug.verbose) { \
40 emitpComment ("; %s:%u:%s *}*", __FILE__, __LINE__, __FUNCTION__); \
60 /* type asmop : a homogenised type for
61 all the different spaces an operand can be
66 short type; /* can have values
67 AOP_LIT - operand is a literal value
68 AOP_REG - is in registers
69 AOP_DIR - direct just a name
70 AOP_STK - should be pushed on stack this
71 can happen only for the result
72 AOP_IMMD - immediate value for eg. remateriazable
73 AOP_CRY - carry contains the value of this
74 AOP_STR - array of strings
76 short coff; /* current offset */
77 short size; /* total size */
78 unsigned code:1; /* is in Code space */
79 unsigned paged:1; /* in paged memory */
80 unsigned freed:1; /* already freed */
83 value *aop_lit; /* if literal */
84 regs *aop_reg[4]; /* array of registers */
85 char *aop_dir; /* if direct */
86 regs *aop_ptr; /* either -> to r0 or r1 */
87 char *aop_immd; /* if immediate others are implied */
88 int aop_stk; /* stack offset when AOP_STK */
89 char *aop_str[4]; /* just a string array containing the location */
96 void genpic14Code (iCode *);
98 extern unsigned fReturnSizePic;
101 #define AOP(op) op->aop
102 #define AOP_TYPE(op) AOP(op)->type
103 #define AOP_SIZE(op) AOP(op)->size
105 #define AOP_NEEDSACC(x) (AOP(x) && (AOP_TYPE(x) == AOP_CRY || AOP(x)->paged))
107 #define RESULTONSTACK(x) \
108 (IC_RESULT(x) && IC_RESULT(x)->aop && \
109 IC_RESULT(x)->aop->type == AOP_STK )
111 #define MOVA(x) if (strcmp(x,"a") && strcmp(x,"acc")) pic14_emitcode(";XXX mov","a,%s %s,%d",x,__FILE__,__LINE__);
112 #define CLRC pic14_emitcode(";XXX clr","c %s,%d",__FILE__,__LINE__);
114 #define BIT_NUMBER(x) (x & 7)
115 #define BIT_REGISTER(x) (x>>3)
124 #define FUNCTION_LABEL_INC 40
126 /*-----------------------------------------------------------------*/
127 /* Macros for emitting skip instructions */
128 /*-----------------------------------------------------------------*/
130 #define emitSKPC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
131 #define emitSKPNC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
132 #define emitSKPZ emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
133 #define emitSKPNZ emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
134 #define emitSKPDC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
135 #define emitSKPNDC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
136 #define emitCLRZ emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
137 #define emitCLRC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
138 #define emitCLRDC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
139 #define emitCLRIRP emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_IRP_BIT))
140 #define emitSETZ emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
141 #define emitSETC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
142 #define emitSETDC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
143 #define emitSETIRP emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_IRP_BIT))
145 int pic14_getDataSize(operand *op);
146 void emitpcode_real(PIC_OPCODE poc, pCodeOp *pcop);
147 #define emitpcode(poc,pcop) do { if (options.debug || debug_verbose) { emitpComment (" >>> %s:%d:%s", __FILE__, __LINE__, __FUNCTION__); } emitpcode_real(poc,pcop); } while(0)
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 genPlus (iCode *ic);
161 void addSign(operand *result, int offset, int sign);
162 void genMinus (iCode *ic);
165 pCodeOp *popGetLabel(unsigned int key);
166 pCodeOp *popCopyReg(pCodeOpReg *pc);
167 pCodeOp *popCopyGPR2Bit(pCodeOp *pc, int bitval);
168 pCodeOp *popGetLit(unsigned int lit);
169 pCodeOp *popGetWithString(char *str, int isExtern);
170 pCodeOp *popRegFromString(char *str, int size, int offset);
171 pCodeOp *popGet (asmop *aop, int offset);//, bool bit16, bool dname);
172 pCodeOp *popGetAddr (asmop *aop, int offset, int index);
173 pCodeOp *popGetTempReg(void);
174 void popReleaseTempReg(pCodeOp *pcop);
177 void aopPut (asmop *aop, char *s, int offset);
178 void pic14_outAcc(operand *result);
179 void aopOp (operand *op, iCode *ic, bool result);
180 void pic14_outBitC(operand *result);
181 void pic14_toBoolean(operand *oper);
182 void freeAsmop (operand *op, asmop *aaop, iCode *ic, bool pop);
183 void mov2w (asmop *aop, int offset);
184 const char *pCodeOpType( pCodeOp *pcop);
186 int aop_isLitLike (asmop *aop);
187 int op_isLitLike (operand *op);