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__); \
50 AOP_STK, AOP_IMMD, AOP_STR,
56 /* type asmop : a homogenised type for
57 all the different spaces an operand can be
62 short type; /* can have values
63 AOP_LIT - operand is a literal value
64 AOP_REG - is in registers
65 AOP_DIR - direct just a name
66 AOP_STK - should be pushed on stack this
67 can happen only for the result
68 AOP_IMMD - immediate value for eg. remateriazable
69 AOP_CRY - carry contains the value of this
70 AOP_STR - array of strings
72 short coff; /* current offset */
73 short size; /* total size */
74 unsigned code:1; /* is in Code space */
75 unsigned paged:1; /* in paged memory */
76 unsigned freed:1; /* already freed */
79 value *aop_lit; /* if literal */
80 regs *aop_reg[4]; /* array of registers */
81 char *aop_dir; /* if direct */
82 regs *aop_ptr; /* either -> to r0 or r1 */
83 char *aop_immd; /* if immediate others are implied */
84 int aop_stk; /* stack offset when AOP_STK */
85 char *aop_str[4]; /* just a string array containing the location */
92 void genpic14Code (iCode *);
94 extern unsigned fReturnSizePic;
97 #define AOP(op) op->aop
98 #define AOP_TYPE(op) AOP(op)->type
99 #define AOP_SIZE(op) AOP(op)->size
101 #define AOP_NEEDSACC(x) (AOP(x) && (AOP_TYPE(x) == AOP_CRY || AOP(x)->paged))
103 #define RESULTONSTACK(x) \
104 (IC_RESULT(x) && IC_RESULT(x)->aop && \
105 IC_RESULT(x)->aop->type == AOP_STK )
107 #define MOVA(x) if (strcmp(x,"a") && strcmp(x,"acc")) pic14_emitcode(";XXX mov","a,%s %s,%d",x,__FILE__,__LINE__);
108 #define CLRC pic14_emitcode(";XXX clr","c %s,%d",__FILE__,__LINE__);
110 #define BIT_NUMBER(x) (x & 7)
111 #define BIT_REGISTER(x) (x>>3)
120 #define FUNCTION_LABEL_INC 40
122 /*-----------------------------------------------------------------*/
123 /* Macros for emitting skip instructions */
124 /*-----------------------------------------------------------------*/
126 #define emitSKPC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
127 #define emitSKPNC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
128 #define emitSKPZ emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
129 #define emitSKPNZ emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
130 #define emitSKPDC emitpcode(POC_BTFSS,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
131 #define emitSKPNDC emitpcode(POC_BTFSC,popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
132 #define emitCLRZ emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
133 #define emitCLRC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
134 #define emitCLRDC emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
135 #define emitCLRIRP emitpcode(POC_BCF, popCopyGPR2Bit(PCOP(&pc_status),PIC_IRP_BIT))
136 #define emitSETZ emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_Z_BIT))
137 #define emitSETC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_C_BIT))
138 #define emitSETDC emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_DC_BIT))
139 #define emitSETIRP emitpcode(POC_BSF, popCopyGPR2Bit(PCOP(&pc_status),PIC_IRP_BIT))
141 int pic14_getDataSize(operand *op);
142 void emitpcode_real(PIC_OPCODE poc, pCodeOp *pcop);
143 #define emitpcode(poc,pcop) do { if (options.debug || debug_verbose) { emitpComment (" >>> %s:%d:%s", __FILE__, __LINE__, __FUNCTION__); } emitpcode_real(poc,pcop); } while(0)
144 void emitpComment (const char *fmt, ...);
145 void emitpLabel(int key);
146 void pic14_emitcode (char *inst,char *fmt, ...);
147 void DEBUGpic14_emitcode (char *inst,char *fmt, ...);
148 void pic14_emitDebuggerSymbol (char *);
149 asmop *newAsmop (short type);
150 bool pic14_sameRegs (asmop *aop1, asmop *aop2 );
151 char *aopGet (asmop *aop, int offset, bool bit16, bool dname);
154 bool genPlusIncr (iCode *ic);
155 void pic14_outBitAcc(operand *result);
156 void genPlus (iCode *ic);
157 bool genMinusDec (iCode *ic);
158 void addSign(operand *result, int offset, int sign);
159 void genMinus (iCode *ic);
162 pCodeOp *popGetLabel(unsigned int key);
163 pCodeOp *popCopyReg(pCodeOpReg *pc);
164 pCodeOp *popCopyGPR2Bit(pCodeOp *pc, int bitval);
165 pCodeOp *popGetLit(unsigned int lit);
166 pCodeOp *popGetWithString(char *str, int isExtern);
167 pCodeOp *popRegFromString(char *str, int size, int offset);
168 pCodeOp *popGet (asmop *aop, int offset);//, bool bit16, bool dname);
169 pCodeOp *popGetAddr (asmop *aop, int offset, int index);
170 pCodeOp *popGetTempReg(void);
171 void popReleaseTempReg(pCodeOp *pcop);
174 void aopPut (asmop *aop, char *s, int offset);
175 void pic14_outAcc(operand *result);
176 void aopOp (operand *op, iCode *ic, bool result);
177 void pic14_outBitC(operand *result);
178 void pic14_toBoolean(operand *oper);
179 void freeAsmop (operand *op, asmop *aaop, iCode *ic, bool pop);
180 void mov2w (asmop *aop, int offset);
181 const char *pCodeOpType( pCodeOp *pcop);
183 int aop_isLitLike (asmop *aop);
184 int op_isLitLike (operand *op);