+++ /dev/null
-;---------------------------------------------------------------------------;\r
-; Extended itoa, puts, printf and atoi (C)ChaN, 2011\r
-;---------------------------------------------------------------------------;\r
-\r
- // Base size is 152 bytes\r
-#define CR_CRLF 0 // Convert \n to \r\n (+10 bytes)\r
-#define USE_XPRINTF 1 // Enable xprintf function (+194 bytes)\r
-#define USE_XSPRINTF 0 // Add xsprintf function (+78 bytes)\r
-#define USE_XFPRINTF 0 // Add xfprintf function (+54 bytes)\r
-#define USE_XATOI 0 // Enable xatoi function (+182 bytes)\r
-\r
-\r
-#if FLASHEND > 0x1FFFF\r
-#error xitoa module does not support 256K devices\r
-#endif\r
-\r
-.nolist\r
-#include <avr/io.h> // Include device specific definitions.\r
-.list\r
-\r
-#ifdef SPM_PAGESIZE // Recent devices have "lpm Rd,Z+" and "movw".\r
-.macro _LPMI reg\r
- lpm \reg, Z+\r
-.endm\r
-.macro _MOVW dh,dl, sh,sl\r
- movw \dl, \sl\r
-.endm\r
-#else // Earlier devices do not have "lpm Rd,Z+" nor "movw".\r
-.macro _LPMI reg\r
- lpm\r
- mov \reg, r0\r
- adiw ZL, 1\r
-.endm\r
-.macro _MOVW dh,dl, sh,sl\r
- mov \dl, \sl\r
- mov \dh, \sh\r
-.endm\r
-#endif\r
-\r
-\r
-\r
-;---------------------------------------------------------------------------\r
-; Stub function to forward to user output function\r
-;\r
-;Prototype: void xputc (char chr // a character to be output\r
-; );\r
-;Size: 12/12 words\r
-\r
-.section .bss\r
-.global xfunc_out ; xfunc_out must be initialized before using this module.\r
-xfunc_out: .ds.w 1\r
-.section .text\r
-\r
-\r
-.func xputc\r
-.global xputc\r
-xputc:\r
-#if CR_CRLF\r
- cpi r24, 10 ;LF --> CRLF\r
- brne 1f ;\r
- ldi r24, 13 ;\r
- rcall 1f ;\r
- ldi r24, 10 ;/\r
-1:\r
-#endif\r
- push ZH\r
- push ZL\r
- lds ZL, xfunc_out+0 ;Pointer to the registered output function.\r
- lds ZH, xfunc_out+1 ;/\r
- sbiw ZL, 0 ;Skip if null\r
- breq 2f ;/\r
- icall\r
-2: pop ZL\r
- pop ZH\r
- ret\r
-.endfunc\r
-\r
-\r
-\r
-;---------------------------------------------------------------------------\r
-; Direct ROM string output\r
-;\r
-;Prototype: void xputs (const char *str_p // rom string to be output\r
-; );\r
-\r
-.func xputs\r
-.global xputs\r
-xputs:\r
- _MOVW ZH,ZL, r25,r24 ; Z = pointer to rom string\r
-1: _LPMI r24\r
- cpi r24, 0\r
- breq 2f\r
- rcall xputc\r
- rjmp 1b\r
-2: ret\r
-.endfunc\r
-\r
-\r
-;---------------------------------------------------------------------------\r
-; Extended direct numeral string output (32bit version)\r
-;\r
-;Prototype: void xitoa (long value, // value to be output\r
-; char radix, // radix\r
-; char width); // minimum width\r
-;\r
-\r
-.func xitoa\r
-.global xitoa\r
-xitoa:\r
- ;r25:r22 = value, r20 = base, r18 = digits\r
- clr r31 ;r31 = stack level\r
- ldi r30, ' ' ;r30 = sign\r
- ldi r19, ' ' ;r19 = filler\r
- sbrs r20, 7 ;When base indicates signd format and the value\r
- rjmp 0f ;is minus, add a '-'.\r
- neg r20 ;\r
- sbrs r25, 7 ;\r
- rjmp 0f ;\r
- ldi r30, '-' ;\r
- com r22 ;\r
- com r23 ;\r
- com r24 ;\r
- com r25 ;\r
- adc r22, r1 ;\r
- adc r23, r1 ;\r
- adc r24, r1 ;\r
- adc r25, r1 ;/\r
-0: sbrs r18, 7 ;When digits indicates zero filled,\r
- rjmp 1f ;filler is '0'.\r
- neg r18 ;\r
- ldi r19, '0' ;/\r
- ;----- string conversion loop\r
-1: ldi r21, 32 ;r26 = r25:r22 % r20\r
- clr r26 ;r25:r22 /= r20\r
-2: lsl r22 ;\r
- rol r23 ;\r
- rol r24 ;\r
- rol r25 ;\r
- rol r26 ;\r
- cp r26, r20 ;\r
- brcs 3f ;\r
- sub r26, r20 ;\r
- inc r22 ;\r
-3: dec r21 ;\r
- brne 2b ;/\r
- cpi r26, 10 ;r26 is a numeral digit '0'-'F'\r
- brcs 4f ;\r
- subi r26, -7 ;\r
-4: subi r26, -'0' ;/\r
- push r26 ;Stack it\r
- inc r31 ;/\r
- cp r22, r1 ;Repeat until r25:r22 gets zero\r
- cpc r23, r1 ;\r
- cpc r24, r1 ;\r
- cpc r25, r1 ;\r
- brne 1b ;/\r
-\r
- cpi r30, '-' ;Minus sign if needed\r
- brne 5f ;\r
- push r30 ;\r
- inc r31 ;/\r
-5: cp r31, r18 ;Filler\r
- brcc 6f ;\r
- push r19 ;\r
- inc r31 ;\r
- rjmp 5b ;/\r
-\r
-6: pop r24 ;Flush stacked digits and exit\r
- rcall xputc ;\r
- dec r31 ;\r
- brne 6b ;/\r
-\r
- ret\r
-.endfunc\r
-\r
-\r
-\r
-;---------------------------------------------------------------------------;\r
-; Formatted string output (16/32bit version)\r
-;\r
-;Prototype:\r
-; void __xprintf (const char *format_p, ...);\r
-; void __xsprintf(char*, const char *format_p, ...);\r
-; void __xfprintf(void(*func)(char), const char *format_p, ...);\r
-;\r
-\r
-#if USE_XPRINTF\r
-\r
-.func xvprintf\r
-xvprintf:\r
- ld ZL, Y+ ;Z = pointer to format string\r
- ld ZH, Y+ ;/\r
-\r
-0: _LPMI r24 ;Get a format char\r
- cpi r24, 0 ;End of format string?\r
- breq 90f ;/\r
- cpi r24, '%' ;Is format?\r
- breq 20f ;/\r
-1: rcall xputc ;Put a normal character\r
- rjmp 0b ;/\r
-90: ret\r
-\r
-20: ldi r18, 0 ;r18: digits\r
- clt ;T: filler\r
- _LPMI r21 ;Get flags\r
- cpi r21, '%' ;Is a %?\r
- breq 1b ;/\r
- cpi r21, '0' ;Zero filled?\r
- brne 23f ;\r
- set ;/\r
-22: _LPMI r21 ;Get width\r
-23: cpi r21, '9'+1 ;\r
- brcc 24f ;\r
- subi r21, '0' ;\r
- brcs 90b ;\r
- lsl r18 ;\r
- mov r0, r18 ;\r
- lsl r18 ;\r
- lsl r18 ;\r
- add r18, r0 ;\r
- add r18, r21 ;\r
- rjmp 22b ;/\r
-\r
-24: brtc 25f ;get value (low word)\r
- neg r18 ;\r
-25: ld r24, Y+ ;\r
- ld r25, Y+ ;/\r
- cpi r21, 'c' ;Is type character?\r
- breq 1b ;/\r
- cpi r21, 's' ;Is type RAM string?\r
- breq 50f ;/\r
- cpi r21, 'S' ;Is type ROM string?\r
- breq 60f ;/\r
- _MOVW r23,r22,r25,r24 ;r25:r22 = value\r
- clr r24 ;\r
- clr r25 ;\r
- clt ;/\r
- cpi r21, 'l' ;Is long int?\r
- brne 26f ;\r
- ld r24, Y+ ;get value (high word)\r
- ld r25, Y+ ;\r
- set ;\r
- _LPMI r21 ;/\r
-26: cpi r21, 'd' ;Is type signed decimal?\r
- brne 27f ;/\r
- ldi r20, -10 ;\r
- brts 40f ;\r
- sbrs r23, 7 ;\r
- rjmp 40f ;\r
- ldi r24, -1 ;\r
- ldi r25, -1 ;\r
- rjmp 40f ;/\r
-27: cpi r21, 'u' ;Is type unsigned decimal?\r
- ldi r20, 10 ;\r
- breq 40f ;/\r
- cpi r21, 'X' ;Is type hexdecimal?\r
- ldi r20, 16 ;\r
- breq 40f ;/\r
- cpi r21, 'b' ;Is type binary?\r
- ldi r20, 2 ;\r
- breq 40f ;/\r
- ret ;abort\r
-40: push ZH ;Output the value\r
- push ZL ;\r
- rcall xitoa ;\r
-42: pop ZL ;\r
- pop ZH ;\r
- rjmp 0b ;/\r
-\r
-50: push ZH ;Put a string on the RAM\r
- push ZL\r
- _MOVW ZH,ZL, r25,r24\r
-51: ld r24, Z+\r
- cpi r24, 0\r
- breq 42b\r
- rcall xputc\r
- rjmp 51b\r
-\r
-60: push ZH ;Put a string on the ROM\r
- push ZL\r
- rcall xputs\r
- rjmp 42b\r
-.endfunc\r
-\r
-\r
-.func __xprintf\r
-.global __xprintf\r
-__xprintf:\r
- push YH\r
- push YL\r
- in YL, _SFR_IO_ADDR(SPL)\r
-#ifdef SPH\r
- in YH, _SFR_IO_ADDR(SPH)\r
-#else\r
- clr YH\r
-#endif\r
- adiw YL, 5 ;Y = pointer to arguments\r
- rcall xvprintf\r
- pop YL\r
- pop YH\r
- ret\r
-.endfunc\r
-\r
-\r
-#if USE_XSPRINTF\r
-\r
-.func __xsprintf\r
-putram:\r
- _MOVW ZH,ZL, r15,r14\r
- st Z+, r24\r
- _MOVW r15,r14, ZH,ZL\r
- ret\r
-.global __xsprintf\r
-__xsprintf:\r
- push YH\r
- push YL\r
- in YL, _SFR_IO_ADDR(SPL)\r
-#ifdef SPH\r
- in YH, _SFR_IO_ADDR(SPH)\r
-#else\r
- clr YH\r
-#endif\r
- adiw YL, 5 ;Y = pointer to arguments\r
- lds ZL, xfunc_out+0 ;Save registered output function\r
- lds ZH, xfunc_out+1 ;\r
- push ZL ;\r
- push ZH ;/\r
- ldi ZL, lo8(pm(putram));Set local output function\r
- ldi ZH, hi8(pm(putram));\r
- sts xfunc_out+0, ZL ;\r
- sts xfunc_out+1, ZH ;/\r
- push r15 ;Initialize pointer to string buffer\r
- push r14 ;\r
- ld r14, Y+ ;\r
- ld r15, Y+ ;/\r
- rcall xvprintf\r
- _MOVW ZH,ZL, r15,r14 ;Terminate string\r
- st Z, r1 ;\r
- pop r14 ;\r
- pop r15 ;/\r
- pop ZH ;Restore registered output function\r
- pop ZL ;\r
- sts xfunc_out+0, ZL ;\r
- sts xfunc_out+1, ZH ;/\r
- pop YL\r
- pop YH\r
- ret\r
-.endfunc\r
-#endif\r
-\r
-\r
-#if USE_XFPRINTF\r
-.func __xfprintf\r
-.global __xfprintf\r
-__xfprintf:\r
- push YH\r
- push YL\r
- in YL, _SFR_IO_ADDR(SPL)\r
-#ifdef SPH\r
- in YH, _SFR_IO_ADDR(SPH)\r
-#else\r
- clr YH\r
-#endif\r
- adiw YL, 5 ;Y = pointer to arguments\r
- lds ZL, xfunc_out+0 ;Save registered output function\r
- lds ZH, xfunc_out+1 ;\r
- push ZL ;\r
- push ZH ;/\r
- ld ZL, Y+ ;Set output function\r
- ld ZH, Y+ ;\r
- sts xfunc_out+0, ZL ;\r
- sts xfunc_out+1, ZH ;/\r
- rcall xvprintf\r
- pop ZH ;Restore registered output function\r
- pop ZL ;\r
- sts xfunc_out+0, ZL ;\r
- sts xfunc_out+1, ZH ;/\r
- pop YL\r
- pop YH\r
- ret\r
-.endfunc\r
-#endif\r
-\r
-#endif\r
-\r
-\r
-\r
-;---------------------------------------------------------------------------\r
-; Extended numeral string input\r
-;\r
-;Prototype:\r
-; char xatoi ( /* 1: Successful, 0: Failed */\r
-; const char **str, /* pointer to pointer to source string */\r
-; long *res /* result */\r
-; );\r
-;\r
-\r
-\r
-#if USE_XATOI\r
-.func xatoi\r
-.global xatoi\r
-xatoi:\r
- _MOVW r1, r0, r23, r22\r
- _MOVW XH, XL, r25, r24\r
- ld ZL, X+\r
- ld ZH, X+\r
- clr r18 ;r21:r18 = 0;\r
- clr r19 ;\r
- clr r20 ;\r
- clr r21 ;/\r
- clt ;T = 0;\r
-\r
- ldi r25, 10 ;r25 = 10;\r
- rjmp 41f ;/\r
-40: adiw ZL, 1 ;Z++;\r
-41: ld r22, Z ;r22 = *Z;\r
- cpi r22, ' ' ;if(r22 == ' ') continue\r
- breq 40b ;/\r
- brcs 70f ;if(r22 < ' ') error;\r
- cpi r22, '-' ;if(r22 == '-') {\r
- brne 42f ; T = 1;\r
- set ; continue;\r
- rjmp 40b ;}\r
-42: cpi r22, '9'+1 ;if(r22 > '9') error;\r
- brcc 70f ;/\r
- cpi r22, '0' ;if(r22 < '0') error;\r
- brcs 70f ;/\r
- brne 51f ;if(r22 > '0') cv_start;\r
- ldi r25, 8 ;r25 = 8;\r
- adiw ZL, 1 ;r22 = *(++Z);\r
- ld r22, Z ;/\r
- cpi r22, ' '+1 ;if(r22 <= ' ') exit;\r
- brcs 80f ;/\r
- cpi r22, 'b' ;if(r22 == 'b') {\r
- brne 43f ; r25 = 2;\r
- ldi r25, 2 ; cv_start;\r
- rjmp 50f ;}\r
-43: cpi r22, 'x' ;if(r22 != 'x') error;\r
- brne 51f ;/\r
- ldi r25, 16 ;r25 = 16;\r
-\r
-50: adiw ZL, 1 ;Z++;\r
- ld r22, Z ;r22 = *Z;\r
-51: cpi r22, ' '+1 ;if(r22 <= ' ') break;\r
- brcs 80f ;/\r
- cpi r22, 'a' ;if(r22 >= 'a') r22 =- 0x20;\r
- brcs 52f ;\r
- subi r22, 0x20 ;/\r
-52: subi r22, '0' ;if((r22 -= '0') < 0) error;\r
- brcs 70f ;/\r
- cpi r22, 10 ;if(r22 >= 10) {\r
- brcs 53f ; r22 -= 7;\r
- subi r22, 7 ; if(r22 < 10) \r
- cpi r22, 10 ;\r
- brcs 70f ;}\r
-53: cp r22, r25 ;if(r22 >= r25) error;\r
- brcc 70f ;/\r
-60: ldi r24, 33 ;r21:r18 *= r25;\r
- sub r23, r23 ;\r
-61: brcc 62f ;\r
- add r23, r25 ;\r
-62: lsr r23 ;\r
- ror r21 ;\r
- ror r20 ;\r
- ror r19 ;\r
- ror r18 ;\r
- dec r24 ;\r
- brne 61b ;/\r
- add r18, r22 ;r21:r18 += r22;\r
- adc r19, r24 ;\r
- adc r20, r24 ;\r
- adc r21, r24 ;/\r
- rjmp 50b ;repeat\r
-\r
-70: ldi r24, 0\r
- rjmp 81f\r
-80: ldi r24, 1\r
-81: brtc 82f\r
- clr r22\r
- com r18\r
- com r19\r
- com r20\r
- com r21\r
- adc r18, r22\r
- adc r19, r22\r
- adc r20, r22\r
- adc r21, r22\r
-82: st -X, ZH\r
- st -X, ZL\r
- _MOVW XH, XL, r1, r0\r
- st X+, r18\r
- st X+, r19\r
- st X+, r20\r
- st X+, r21\r
- clr r1\r
- ret\r
-.endfunc\r
-#endif\r
-\r
-\r
projects / tmk_firmware.git / blobdiff