diff options
Diffstat (limited to 'tmk_core/common/avr/xprintf.S')
| -rw-r--r-- | tmk_core/common/avr/xprintf.S | 498 |
1 files changed, 0 insertions, 498 deletions
diff --git a/tmk_core/common/avr/xprintf.S b/tmk_core/common/avr/xprintf.S deleted file mode 100644 index c5a414c35c..0000000000 --- a/tmk_core/common/avr/xprintf.S +++ /dev/null @@ -1,498 +0,0 @@ -;---------------------------------------------------------------------------; -; Extended itoa, puts, printf and atoi (C)ChaN, 2011 -;---------------------------------------------------------------------------; - - // Base size is 152 bytes -#define CR_CRLF 0 // Convert \n to \r\n (+10 bytes) -#define USE_XPRINTF 1 // Enable xprintf function (+194 bytes) -#define USE_XSPRINTF 0 // Add xsprintf function (+78 bytes) -#define USE_XFPRINTF 0 // Add xfprintf function (+54 bytes) -#define USE_XATOI 0 // Enable xatoi function (+182 bytes) - - -#if FLASHEND > 0x1FFFF -#error xitoa module does not support 256K devices -#endif - -.nolist -#include <avr/io.h> // Include device specific definitions. -.list - -#ifdef SPM_PAGESIZE // Recent devices have "lpm Rd,Z+" and "movw". -.macro _LPMI reg - lpm \reg, Z+ -.endm -.macro _MOVW dh,dl, sh,sl - movw \dl, \sl -.endm -#else // Earlier devices do not have "lpm Rd,Z+" nor "movw". -.macro _LPMI reg - lpm - mov \reg, r0 - adiw ZL, 1 -.endm -.macro _MOVW dh,dl, sh,sl - mov \dl, \sl - mov \dh, \sh -.endm -#endif - - - -;--------------------------------------------------------------------------- -; Stub function to forward to user output function -; -;Prototype: void xputc (char chr // a character to be output -; ); -;Size: 12/12 words - -.section .bss -.global xfunc_out ; xfunc_out must be initialized before using this module. -xfunc_out: .ds.w 1 -.section .text - - -.func xputc -.global xputc -xputc: -#if CR_CRLF - cpi r24, 10 ;LF --> CRLF - brne 1f ; - ldi r24, 13 ; - rcall 1f ; - ldi r24, 10 ;/ -1: -#endif - push ZH - push ZL - lds ZL, xfunc_out+0 ;Pointer to the registered output function. - lds ZH, xfunc_out+1 ;/ - sbiw ZL, 0 ;Skip if null - breq 2f ;/ - icall -2: pop ZL - pop ZH - ret -.endfunc - - - -;--------------------------------------------------------------------------- -; Direct ROM string output -; -;Prototype: void xputs (const char *str_p // rom string to be output -; ); - -.func xputs -.global xputs -xputs: - _MOVW ZH,ZL, r25,r24 ; Z = pointer to rom string -1: _LPMI r24 - cpi r24, 0 - breq 2f - rcall xputc - rjmp 1b -2: ret -.endfunc - - -;--------------------------------------------------------------------------- -; Extended direct numeral string output (32bit version) -; -;Prototype: void xitoa (long value, // value to be output -; char radix, // radix -; char width); // minimum width -; - -.func xitoa -.global xitoa -xitoa: - ;r25:r22 = value, r20 = base, r18 = digits - clr r31 ;r31 = stack level - ldi r30, ' ' ;r30 = sign - ldi r19, ' ' ;r19 = filler - sbrs r20, 7 ;When base indicates signd format and the value - rjmp 0f ;is minus, add a '-'. - neg r20 ; - sbrs r25, 7 ; - rjmp 0f ; - ldi r30, '-' ; - com r22 ; - com r23 ; - com r24 ; - com r25 ; - adc r22, r1 ; - adc r23, r1 ; - adc r24, r1 ; - adc r25, r1 ;/ -0: sbrs r18, 7 ;When digits indicates zero filled, - rjmp 1f ;filler is '0'. - neg r18 ; - ldi r19, '0' ;/ - ;----- string conversion loop -1: ldi r21, 32 ;r26 = r25:r22 % r20 - clr r26 ;r25:r22 /= r20 -2: lsl r22 ; - rol r23 ; - rol r24 ; - rol r25 ; - rol r26 ; - cp r26, r20 ; - brcs 3f ; - sub r26, r20 ; - inc r22 ; -3: dec r21 ; - brne 2b ;/ - cpi r26, 10 ;r26 is a numeral digit '0'-'F' - brcs 4f ; - subi r26, -7 ; -4: subi r26, -'0' ;/ - push r26 ;Stack it - inc r31 ;/ - cp r22, r1 ;Repeat until r25:r22 gets zero - cpc r23, r1 ; - cpc r24, r1 ; - cpc r25, r1 ; - brne 1b ;/ - - cpi r30, '-' ;Minus sign if needed - brne 5f ; - push r30 ; - inc r31 ;/ -5: cp r31, r18 ;Filler - brcc 6f ; - push r19 ; - inc r31 ; - rjmp 5b ;/ - -6: pop r24 ;Flush stacked digits and exit - rcall xputc ; - dec r31 ; - brne 6b ;/ - - ret -.endfunc - - - -;---------------------------------------------------------------------------; -; Formatted string output (16/32bit version) -; -;Prototype: -; void __xprintf (const char *format_p, ...); -; void __xsprintf(char*, const char *format_p, ...); -; void __xfprintf(void(*func)(char), const char *format_p, ...); -; - -#if USE_XPRINTF - -.func xvprintf -xvprintf: - ld ZL, Y+ ;Z = pointer to format string - ld ZH, Y+ ;/ - -0: _LPMI r24 ;Get a format char - cpi r24, 0 ;End of format string? - breq 90f ;/ - cpi r24, '%' ;Is format? - breq 20f ;/ -1: rcall xputc ;Put a normal character - rjmp 0b ;/ -90: ret - -20: ldi r18, 0 ;r18: digits - clt ;T: filler - _LPMI r21 ;Get flags - cpi r21, '%' ;Is a %? - breq 1b ;/ - cpi r21, '0' ;Zero filled? - brne 23f ; - set ;/ -22: _LPMI r21 ;Get width -23: cpi r21, '9'+1 ; - brcc 24f ; - subi r21, '0' ; - brcs 90b ; - lsl r18 ; - mov r0, r18 ; - lsl r18 ; - lsl r18 ; - add r18, r0 ; - add r18, r21 ; - rjmp 22b ;/ - -24: brtc 25f ;get value (low word) - neg r18 ; -25: ld r24, Y+ ; - ld r25, Y+ ;/ - cpi r21, 'c' ;Is type character? - breq 1b ;/ - cpi r21, 's' ;Is type RAM string? - breq 50f ;/ - cpi r21, 'S' ;Is type ROM string? - breq 60f ;/ - _MOVW r23,r22,r25,r24 ;r25:r22 = value - clr r24 ; - clr r25 ; - clt ;/ - cpi r21, 'l' ;Is long int? - brne 26f ; - ld r24, Y+ ;get value (high word) - ld r25, Y+ ; - set ; - _LPMI r21 ;/ -26: cpi r21, 'd' ;Is type signed decimal? - brne 27f ;/ - ldi r20, -10 ; - brts 40f ; - sbrs r23, 7 ; - rjmp 40f ; - ldi r24, -1 ; - ldi r25, -1 ; - rjmp 40f ;/ -27: cpi r21, 'u' ;Is type unsigned decimal? - ldi r20, 10 ; - breq 40f ;/ - cpi r21, 'X' ;Is type hexdecimal? - ldi r20, 16 ; - breq 40f ;/ - cpi r21, 'b' ;Is type binary? - ldi r20, 2 ; - breq 40f ;/ - ret ;abort -40: push ZH ;Output the value - push ZL ; - rcall xitoa ; -42: pop ZL ; - pop ZH ; - rjmp 0b ;/ - -50: push ZH ;Put a string on the RAM - push ZL - _MOVW ZH,ZL, r25,r24 -51: ld r24, Z+ - cpi r24, 0 - breq 42b - rcall xputc - rjmp 51b - -60: push ZH ;Put a string on the ROM - push ZL - rcall xputs - rjmp 42b -.endfunc - - -.func __xprintf -.global __xprintf -__xprintf: - push YH - push YL - in YL, _SFR_IO_ADDR(SPL) -#ifdef SPH - in YH, _SFR_IO_ADDR(SPH) -#else - clr YH -#endif - adiw YL, 5 ;Y = pointer to arguments - rcall xvprintf - pop YL - pop YH - ret -.endfunc - - -#if USE_XSPRINTF - -.func __xsprintf -putram: - _MOVW ZH,ZL, r15,r14 - st Z+, r24 - _MOVW r15,r14, ZH,ZL - ret -.global __xsprintf -__xsprintf: - push YH - push YL - in YL, _SFR_IO_ADDR(SPL) -#ifdef SPH - in YH, _SFR_IO_ADDR(SPH) -#else - clr YH -#endif - adiw YL, 5 ;Y = pointer to arguments - lds ZL, xfunc_out+0 ;Save registered output function - lds ZH, xfunc_out+1 ; - push ZL ; - push ZH ;/ - ldi ZL, lo8(pm(putram));Set local output function - ldi ZH, hi8(pm(putram)); - sts xfunc_out+0, ZL ; - sts xfunc_out+1, ZH ;/ - push r15 ;Initialize pointer to string buffer - push r14 ; - ld r14, Y+ ; - ld r15, Y+ ;/ - rcall xvprintf - _MOVW ZH,ZL, r15,r14 ;Terminate string - st Z, r1 ; - pop r14 ; - pop r15 ;/ - pop ZH ;Restore registered output function - pop ZL ; - sts xfunc_out+0, ZL ; - sts xfunc_out+1, ZH ;/ - pop YL - pop YH - ret -.endfunc -#endif - - -#if USE_XFPRINTF -.func __xfprintf -.global __xfprintf -__xfprintf: - push YH - push YL - in YL, _SFR_IO_ADDR(SPL) -#ifdef SPH - in YH, _SFR_IO_ADDR(SPH) -#else - clr YH -#endif - adiw YL, 5 ;Y = pointer to arguments - lds ZL, xfunc_out+0 ;Save registered output function - lds ZH, xfunc_out+1 ; - push ZL ; - push ZH ;/ - ld ZL, Y+ ;Set output function - ld ZH, Y+ ; - sts xfunc_out+0, ZL ; - sts xfunc_out+1, ZH ;/ - rcall xvprintf - pop ZH ;Restore registered output function - pop ZL ; - sts xfunc_out+0, ZL ; - sts xfunc_out+1, ZH ;/ - pop YL - pop YH - ret -.endfunc -#endif - -#endif - - - -;--------------------------------------------------------------------------- -; Extended numeral string input -; -;Prototype: -; char xatoi ( /* 1: Successful, 0: Failed */ -; const char **str, /* pointer to pointer to source string */ -; long *res /* result */ -; ); -; - - -#if USE_XATOI -.func xatoi -.global xatoi -xatoi: - _MOVW r1, r0, r23, r22 - _MOVW XH, XL, r25, r24 - ld ZL, X+ - ld ZH, X+ - clr r18 ;r21:r18 = 0; - clr r19 ; - clr r20 ; - clr r21 ;/ - clt ;T = 0; - - ldi r25, 10 ;r25 = 10; - rjmp 41f ;/ -40: adiw ZL, 1 ;Z++; -41: ld r22, Z ;r22 = *Z; - cpi r22, ' ' ;if(r22 == ' ') continue - breq 40b ;/ - brcs 70f ;if(r22 < ' ') error; - cpi r22, '-' ;if(r22 == '-') { - brne 42f ; T = 1; - set ; continue; - rjmp 40b ;} -42: cpi r22, '9'+1 ;if(r22 > '9') error; - brcc 70f ;/ - cpi r22, '0' ;if(r22 < '0') error; - brcs 70f ;/ - brne 51f ;if(r22 > '0') cv_start; - ldi r25, 8 ;r25 = 8; - adiw ZL, 1 ;r22 = *(++Z); - ld r22, Z ;/ - cpi r22, ' '+1 ;if(r22 <= ' ') exit; - brcs 80f ;/ - cpi r22, 'b' ;if(r22 == 'b') { - brne 43f ; r25 = 2; - ldi r25, 2 ; cv_start; - rjmp 50f ;} -43: cpi r22, 'x' ;if(r22 != 'x') error; - brne 51f ;/ - ldi r25, 16 ;r25 = 16; - -50: adiw ZL, 1 ;Z++; - ld r22, Z ;r22 = *Z; -51: cpi r22, ' '+1 ;if(r22 <= ' ') break; - brcs 80f ;/ - cpi r22, 'a' ;if(r22 >= 'a') r22 =- 0x20; - brcs 52f ; - subi r22, 0x20 ;/ -52: subi r22, '0' ;if((r22 -= '0') < 0) error; - brcs 70f ;/ - cpi r22, 10 ;if(r22 >= 10) { - brcs 53f ; r22 -= 7; - subi r22, 7 ; if(r22 < 10) - cpi r22, 10 ; - brcs 70f ;} -53: cp r22, r25 ;if(r22 >= r25) error; - brcc 70f ;/ -60: ldi r24, 33 ;r21:r18 *= r25; - sub r23, r23 ; -61: brcc 62f ; - add r23, r25 ; -62: lsr r23 ; - ror r21 ; - ror r20 ; - ror r19 ; - ror r18 ; - dec r24 ; - brne 61b ;/ - add r18, r22 ;r21:r18 += r22; - adc r19, r24 ; - adc r20, r24 ; - adc r21, r24 ;/ - rjmp 50b ;repeat - -70: ldi r24, 0 - rjmp 81f -80: ldi r24, 1 -81: brtc 82f - clr r22 - com r18 - com r19 - com r20 - com r21 - adc r18, r22 - adc r19, r22 - adc r20, r22 - adc r21, r22 -82: st -X, ZH - st -X, ZL - _MOVW XH, XL, r1, r0 - st X+, r18 - st X+, r19 - st X+, r20 - st X+, r21 - clr r1 - ret -.endfunc -#endif |