2 ds390 specific general functions.
4 Note that mlh prepended _ds390_ on the static functions. Makes
5 it easier to set a breakpoint using the debugger.
13 #include "../SDCCutil.h"
14 extern const char *preArgv[128]; /* pre-processor arguments */
15 static char _defaultRules[] =
20 /* list of key words used by msc51 */
21 static char *_ds390_keywords[] =
49 static builtins __ds390_builtins[] = {
50 { "__builtin_memcpy_x2x","v",3,{"cx*","cx*","i"}}, /* void __builtin_memcpy_x2x (xdata char *,xdata char *,int) */
51 { "__builtin_memcpy_c2x","v",3,{"cx*","cp*","i"}}, /* void __builtin_memcpy_c2x (xdata char *,code char *,int) */
52 { "__builtin_memset_x","v",3,{"cx*","c","i"}}, /* void __builtin_memset (xdata char *,char,int) */
53 /* __builtin_inp - used to read from a memory mapped port, increment first pointer */
54 { "__builtin_inp","v",3,{"cx*","cx*","i"}}, /* void __builtin_inp (xdata char *,xdata char *,int) */
55 /* __builtin_inp - used to write to a memory mapped port, increment first pointer */
56 { "__builtin_outp","v",3,{"cx*","cx*","i"}}, /* void __builtin_outp (xdata char *,xdata char *,int) */
57 { "__builtin_swapw","us",1,{"us"}}, /* unsigned short __builtin_swapw (unsigned short) */
58 { "__builtin_memcmp_x2x","c",3,{"cx*","cx*","i"}}, /* void __builtin_memcmp_x2x (xdata char *,xdata char *,int) */
59 { "__builtin_memcmp_c2x","c",3,{"cx*","cp*","i"}}, /* void __builtin_memcmp_c2x (xdata char *,code char *,int) */
60 { NULL , NULL,0, {NULL}} /* mark end of table */
62 void ds390_assignRegisters (eBBlock ** ebbs, int count);
64 static int regParmFlg = 0; /* determine if we can register a parameter */
69 asm_addTree (&asm_asxxxx_mapping);
73 _ds390_reset_regparm ()
79 _ds390_regparm (sym_link * l)
82 if (options.parms_in_bank1 == 0) {
83 /* simple can pass only the first parameter in a register */
90 int size = getSize(l);
93 /* first one goes the usual way to DPTR */
94 if (regParmFlg == 0) {
98 /* second one onwards goes to RB1_0 thru RB1_7 */
99 remain = regParmFlg - 4;
100 if (size > (8 - remain)) {
105 return regParmFlg - size + 1;
110 _ds390_parseOptions (int *pargc, char **argv, int *i)
112 /* TODO: allow port-specific command line options to specify
113 * segment names here.
119 _ds390_finaliseOptions (void)
121 /* Hack-o-matic: if we are using the flat24 model,
122 * adjust pointer sizes.
124 if (options.model != MODEL_FLAT24) {
126 "*** warning: ds390 port small and large model experimental.\n");
127 if (options.model == MODEL_LARGE)
129 port->mem.default_local_map = xdata;
130 port->mem.default_globl_map = xdata;
134 port->mem.default_local_map = data;
135 port->mem.default_globl_map = data;
139 port->s.fptr_size = 3;
140 port->s.gptr_size = 4;
142 port->stack.isr_overhead += 2; /* Will save dpx on ISR entry. */
144 port->stack.call_overhead += 2; /* This acounts for the extra byte
145 * of return addres on the stack.
146 * but is ugly. There must be a
150 port->mem.default_local_map = xdata;
151 port->mem.default_globl_map = xdata;
153 if (!options.stack10bit)
156 "*** error: ds390 port only supports the 10 bit stack mode.\n");
158 if (!options.stack_loc) options.stack_loc = 0x400007;
161 /* generate native code 16*16 mul/div */
162 if (options.useAccelerator)
163 port->support.muldiv=2;
165 port->support.muldiv=1;
167 /* Fixup the memory map for the stack; it is now in
168 * far space and requires a FPOINTER to access it.
171 istack->ptrType = FPOINTER;
173 if (options.parms_in_bank1) {
174 addToList (preArgv, "-DSDCC_PARMS_IN_BANK1");
180 _ds390_setDefaultOptions (void)
182 options.model=MODEL_FLAT24;
183 options.stack10bit=1;
187 _ds390_getRegName (struct regs *reg)
195 _ds390_genAssemblerPreamble (FILE * of)
197 if (options.model == MODEL_FLAT24)
198 fputs (".flat24 on\t\t; 24 bit flat addressing\n", of);
200 fputs ("dpx = 0x93\t\t; dpx register unknown to assembler\n", of);
201 fputs ("dps = 0x86\t\t; dps register unknown to assembler\n", of);
202 fputs ("dpl1 = 0x84\t\t; dpl1 register unknown to assembler\n", of);
203 fputs ("dph1 = 0x85\t\t; dph1 register unknown to assembler\n", of);
204 fputs ("dpx1 = 0x95\t\t; dpx1 register unknown to assembler\n", of);
205 fputs ("ap = 0x9C\t\t; ap register unknown to assembler\n", of);
206 fputs ("_ap = 0x9C\t\t; _ap register unknown to assembler\n", of);
207 fputs ("mcnt0 = 0xD1\t\t; mcnt0 register unknown to assembler\n", of);
208 fputs ("mcnt1 = 0xD2\t\t; mcnt1 register unknown to assembler\n", of);
209 fputs ("ma = 0xD3\t\t; ma register unknown to assembler\n", of);
210 fputs ("mb = 0xD4\t\t; mb register unknown to assembler\n", of);
211 fputs ("mc = 0xD5\t\t; mc register unknown to assembler\n", of);
212 fputs ("F1 = 0xD1\t\t; F1 user flag unknown to assembler\n", of);
213 fputs ("esp = 0x9B\t\t; ESP user flag unknown to assembler\n", of);
214 if (options.parms_in_bank1) {
216 for (i=0; i < 8 ; i++ )
217 fprintf (of,"b1_%d = 0x%x \n",i,8+i);
221 /* Generate interrupt vector table. */
223 _ds390_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
227 if (options.model != MODEL_FLAT24)
229 /* Let the default code handle it. */
233 fprintf (of, "\tajmp\t__sdcc_gsinit_startup\n");
235 /* now for the other interrupts */
236 for (i = 0; i < maxInterrupts; i++)
240 fprintf (of, "\tljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname);
244 fprintf (of, "\treti\n\t.ds\t7\n");
251 /* Generate code to copy XINIT to XISEG */
252 static void _ds390_genXINIT (FILE * of) {
253 fprintf (of, "; _ds390_genXINIT() start\n");
254 fprintf (of, " mov a,#l_XINIT\n");
255 fprintf (of, " orl a,#l_XINIT>>8\n");
256 fprintf (of, " jz 00003$\n");
257 fprintf (of, " mov a,#s_XINIT\n");
258 fprintf (of, " add a,#l_XINIT\n");
259 fprintf (of, " mov r1,a\n");
260 fprintf (of, " mov a,#s_XINIT>>8\n");
261 fprintf (of, " addc a,#l_XINIT>>8\n");
262 fprintf (of, " mov r2,a\n");
263 fprintf (of, " mov dptr,#s_XINIT\n");
264 fprintf (of, " mov dps,#0x21\n");
265 fprintf (of, " mov dptr,#s_XISEG\n");
266 fprintf (of, "00001$: clr a\n");
267 fprintf (of, " movc a,@a+dptr\n");
268 fprintf (of, " movx @dptr,a\n");
269 fprintf (of, " inc dptr\n");
270 fprintf (of, " inc dptr\n");
271 fprintf (of, "00002$: mov a,dpl\n");
272 fprintf (of, " cjne a,ar1,00001$\n");
273 fprintf (of, " mov a,dph\n");
274 fprintf (of, " cjne a,ar2,00001$\n");
275 fprintf (of, " mov dps,#0\n");
276 fprintf (of, "00003$:\n");
277 fprintf (of, "; _ds390_genXINIT() end\n");
280 /* Do CSE estimation */
281 static bool cseCostEstimation (iCode *ic, iCode *pdic)
283 operand *result = IC_RESULT(ic);
284 //operand *right = IC_RIGHT(ic);
285 //operand *left = IC_LEFT(ic);
286 sym_link *result_type = operandType(result);
287 //sym_link *right_type = (right ? operandType(right) : 0);
288 //sym_link *left_type = (left ? operandType(left) : 0);
290 /* if it is a pointer then return ok for now */
291 if (IC_RESULT(ic) && IS_PTR(result_type)) return 1;
293 /* if bitwise | add & subtract then no since mcs51 is pretty good at it
294 so we will cse only if they are local (i.e. both ic & pdic belong to
295 the same basic block */
296 if (IS_BITWISE_OP(ic) || ic->op == '+' || ic->op == '-') {
297 /* then if they are the same Basic block then ok */
298 if (ic->eBBlockNum == pdic->eBBlockNum) return 1;
302 /* for others it is cheaper to do the cse */
305 /** $1 is always the basename.
306 $2 is always the output file.
308 $l is the list of extra options that should be there somewhere...
309 MUST be terminated with a NULL.
311 static const char *_linkCmd[] =
313 "aslink", "-nf", "$1", NULL
316 /* $3 is replaced by assembler.debug_opts resp. port->assembler.plain_opts */ static const char *_asmCmd[] =
318 "asx8051", "$l", "$3", "$1.asm", NULL
326 "DS80C390", /* Target name */
328 TRUE, /* Emit glue around main */
329 MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24,
335 "-plosgffc", /* Options with debug */
336 "-plosgff", /* Options without debug */
339 NULL /* no do_assemble function */
351 /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
352 1, 2, 2, 4, 1, 2, 3, 1, 4, 4
367 "XISEG (XDATA)", // initialized xdata
368 "XINIT (CODE)", // a code copy of xiseg
376 /* ds390 has an 16 bit mul & div */
383 _ds390_finaliseOptions,
384 _ds390_setDefaultOptions,
385 ds390_assignRegisters,
388 _ds390_genAssemblerPreamble,
389 NULL, /* no genAssemblerEnd */
392 _ds390_reset_regparm,
400 1, /* transform <= to ! > */
401 1, /* transform >= to ! < */
402 1, /* transform != to !(a == b) */
404 TRUE, /* we support array initializers. */
406 __ds390_builtins, /* table of builtin functions */
407 GPOINTER, /* treat unqualified pointers as "generic" pointers */
408 1, /* reset labelKey to 1 */
409 1, /* globals & local static allowed */
413 /*---------------------------------------------------------------------------------*/
414 /* TININative specific */
415 /*---------------------------------------------------------------------------------*/
417 static void _tininative_init (void)
419 asm_addTree (&asm_a390_mapping);
422 static void _tininative_setDefaultOptions (void)
424 options.model=MODEL_FLAT24;
425 options.stack10bit=1;
426 options.stackAuto = 1;
429 static void _tininative_finaliseOptions (void)
431 /* Hack-o-matic: if we are using the flat24 model,
432 * adjust pointer sizes.
434 if (options.model != MODEL_FLAT24) {
435 options.model = MODEL_FLAT24 ;
436 fprintf(stderr,"TININative supports only MODEL FLAT24\n");
438 port->s.fptr_size = 3;
439 port->s.gptr_size = 4;
441 port->stack.isr_overhead += 2; /* Will save dpx on ISR entry. */
443 port->stack.call_overhead += 2; /* This acounts for the extra byte
444 * of return addres on the stack.
445 * but is ugly. There must be a
449 port->mem.default_local_map = xdata;
450 port->mem.default_globl_map = xdata;
452 if (!options.stack10bit) {
453 options.stack10bit = 1;
454 fprintf(stderr,"TININative supports only stack10bit \n");
457 if (!options.stack_loc) options.stack_loc = 0x400007;
459 /* generate native code 16*16 mul/div */
460 if (options.useAccelerator)
461 port->support.muldiv=2;
463 port->support.muldiv=1;
465 /* Fixup the memory map for the stack; it is now in
466 * far space and requires a FPOINTER to access it.
469 istack->ptrType = FPOINTER;
473 static int _tininative_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
477 static void _tininative_genAssemblerPreamble (FILE * of)
479 fputs("$include(tini.inc)\n", of);
480 fputs("$include(ds80c390.inc)\n", of);
481 fputs("$include(tinimacro.inc)\n", of);
482 fputs("$include(apiequ.inc)\n", of);
483 fputs("_bpx EQU 01Eh \t\t; _bpx (frame pointer) mapped to R8_B3:R7_B3\n", of);
484 fputs("_ap EQU 01Dh \t\t; _ap mapped to R6_B3\n", of);
485 /* Must be first and return 0 */
486 fputs("Lib_Native_Init:\n",of);
487 fputs("\tclr\ta\n",of);
489 fputs("LibraryID:\n",of);
490 fputs("\tdb \"DS\"\n",of);
491 if (options.tini_libid) {
492 fprintf(of,"\tdb 0,0,0%02xh,0%02xh,0%02xh,0%02xh\n",
493 (options.tini_libid>>24 & 0xff),
494 (options.tini_libid>>16 & 0xff),
495 (options.tini_libid>>8 & 0xff),
496 (options.tini_libid & 0xff));
498 fprintf(of,"\tdb 0,0,0,0,0,1\n");
502 static void _tininative_genAssemblerEnd (FILE * of)
506 /* tininative assembler , calls "macro", if it succeeds calls "a390" */
507 static void _tininative_do_assemble (const char * const *asmOptions)
509 static const char *macroCmd[] = {
510 "macro","$1.a51",NULL
512 static const char *a390Cmd[] = {
517 buildCmdLine(buffer,macroCmd,srcFileName,NULL,NULL,NULL);
518 if (my_system(buffer)) {
521 buildCmdLine(buffer,a390Cmd,srcFileName,NULL,NULL,asmOptions);
522 if (my_system(buffer)) {
527 /* list of key words used by TININative */
528 static char *_tininative_keywords[] =
557 static builtins __tininative_builtins[] = {
558 { "__builtin_memcpy_x2x","v",3,{"cx*","cx*","i"}}, /* void __builtin_memcpy_x2x (xdata char *,xdata char *,int) */
559 { "__builtin_memcpy_c2x","v",3,{"cx*","cp*","i"}}, /* void __builtin_memcpy_c2x (xdata char *,code char *,int) */
560 { "__builtin_memset_x","v",3,{"cx*","c","i"}}, /* void __builtin_memset (xdata char *,char,int) */
562 { "NatLib_LoadByte","c",1,{"c"}}, /* char Natlib_LoadByte (0 based parameter number) */
563 { "NatLib_LoadShort","s",1,{"c"}}, /* short Natlib_LoadShort (0 based parameter number) */
564 { "NatLib_LoadInt","l",1,{"c"}}, /* long Natlib_LoadLong (0 based parameter number) */
565 { "NatLib_LoadPointer","cx*",1,{"c"}}, /* long Natlib_LoadPointer (0 based parameter number) */
566 /* TINI StateBlock related */
567 { "NatLib_InstallImmutableStateBlock","c",2,{"vx*","us"}},/* char NatLib_InstallImmutableStateBlock(state block *,int handle) */
568 { "NatLib_InstallEphemeralStateBlock","c",2,{"vx*","us"}},/* char NatLib_InstallEphemeralStateBlock(state block *,int handle) */
569 { "NatLib_RemoveImmutableStateBlock","v",0,{NULL}},/* void NatLib_RemoveImmutableStateBlock() */
570 { "NatLib_RemoveEphemeralStateBlock","v",0,{NULL}},/* void NatLib_RemoveEphemeralStateBlock() */
571 { "NatLib_GetImmutableStateBlock","i",0,{NULL}}, /* int NatLib_GetImmutableStateBlock () */
572 { "NatLib_GetEphemeralStateBlock","i",0,{NULL}}, /* int NatLib_GetEphemeralStateBlock () */
574 { "MM_XMalloc","i",1,{"l"}}, /* int MM_XMalloc (long) */
575 { "MM_Malloc","i",1,{"i"}}, /* int MM_Malloc (int) */
576 { "MM_ApplicationMalloc","i",1,{"i"}}, /* int MM_ApplicationMalloc (int) */
577 { "MM_Free","i",1,{"i"}}, /* int MM_Free (int) */
578 { "MM_Deref","cx*",1,{"i"}}, /* char *MM_Free (int) */
579 { "MM_UnrestrictedPersist","c",1,{"i"}}, /* char MM_UnrestrictedPersist (int) */
580 /* System functions */
581 { "System_ExecJavaProcess","c",2,{"cx*","i"}}, /* char System_ExecJavaProcess (char *,int) */
582 { "System_GetRTCRegisters","v",1,{"cx*"}}, /* void System_GetRTCRegisters (char *) */
583 { "System_SetRTCRegisters","v",1,{"cx*"}}, /* void System_SetRTCRegisters (char *) */
584 { "System_ThreadSleep","v",2,{"l","c"}}, /* void System_ThreadSleep (long,char) */
585 { "System_ThreadSleep_ExitCriticalSection","v",2,{"l","c"}},/* void System_ThreadSleep_ExitCriticalSection (long,char) */
586 { "System_ProcessSleep","v",2,{"l","c"}}, /* void System_ProcessSleep (long,char) */
587 { "System_ProcessSleep_ExitCriticalSection","v",2,{"l","c"}},/* void System_ProcessSleep_ExitCriticalSection (long,char) */
588 { "System_ThreadResume","c",2,{"c","c"}}, /* char System_ThreadResume(char,char) */
589 { "System_SaveJavaThreadState","v",0,{NULL}}, /* void System_SaveJavaThreadState() */
590 { "System_RestoreJavaThreadState","v",0,{NULL}}, /* void System_RestoreJavaThreadState() */
591 { "System_ProcessYield","v",0,{NULL}}, /* void System_ProcessYield() */
592 { "System_ProcessSuspend","v",0,{NULL}}, /* void System_ProcessSuspend() */
593 { "System_ProcessResume","v",1,{"c"}}, /* void System_ProcessResume(char) */
594 { "System_RegisterPoll","c",1,{"vF*"}}, /* char System_RegisterPoll ((void *func pointer)()) */
595 { "System_RemovePoll","c",1,{"vF*"}}, /* char System_RemovePoll ((void *func pointer)()) */
596 { "System_GetCurrentProcessId","c",0,{NULL}}, /* char System_GetCurrentProcessId() */
597 { "System_GetCurrentThreadId","c",0,{NULL}}, /* char System_GetCurrentThreadId() */
598 { NULL , NULL,0, {NULL}} /* mark end of table */
601 static const char *_a390Cmd[] =
603 "macro", "$l", "$3", "$1.a51", NULL
605 PORT tininative_port =
609 "DS80C390", /* Target name */
611 FALSE, /* Emit glue around main */
618 "-l", /* Options with debug */
619 "-l", /* Options without debug */
622 _tininative_do_assemble
634 /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
635 1, 2, 2, 4, 1, 3, 3, 1, 4, 4
659 /* ds390 has an 16 bit mul & div */
666 _tininative_finaliseOptions,
667 _tininative_setDefaultOptions,
668 ds390_assignRegisters,
670 _tininative_keywords,
671 _tininative_genAssemblerPreamble,
672 _tininative_genAssemblerEnd,
675 _ds390_reset_regparm,
683 1, /* transform <= to ! > */
684 1, /* transform >= to ! < */
685 1, /* transform != to !(a == b) */
687 TRUE, /* we support array initializers. */
689 __tininative_builtins, /* table of builtin functions */
690 FPOINTER, /* treat unqualified pointers as far pointers */
691 0, /* DONOT reset labelKey */
692 0, /* globals & local static NOT allowed */