[Sdcc-user] PIC16 port asm listing line numbers do not match

[Kustaa N. <Kus...@pl...>]

Hi,

it looks to me that the source code line numbers in the .asm file
for PIC16 port do match. Lines are missing and the code
generated does not correspond to the referred to lines.

Is this a known issue? Any workarounds? Worth reporting as bug?

br Kusti



Below is an example, starting from C-source code line 135:

int32_t get_position(uint8_t i) {
 uint8_t stp;
 uint8_t dlt;
 uint32_t pos;
 uint8_t dir;
 do {
  stp = g_low_pri_isr_guard;
  dlt = g_stepper_states[i].last_steps - g_stepper_states[i].steps;
  pos = g_stepper_states[i].position;
  dir = g_stepper_states[i].last_dir;
 } while (stp != g_low_pri_isr_guard);
 if (dir)
  pos += dlt;
 else
  pos -= dlt;
 return pos;
}




This gets compiled to:


; ; Starting pCode block
S_main__get_position code
_get_position:
; .line 135; main.c stp = g_low_pri_isr_guard;
 MOVFF FSR2L, POSTDEC1
 MOVFF FSR1L, FSR2L
 MOVFF r0x00, POSTDEC1
 MOVFF r0x01, POSTDEC1
 MOVFF r0x02, POSTDEC1
 MOVFF r0x03, POSTDEC1
 MOVFF r0x04, POSTDEC1
 MOVFF r0x05, POSTDEC1
 MOVFF r0x06, POSTDEC1
 MOVFF r0x07, POSTDEC1
 MOVFF r0x08, POSTDEC1
 MOVFF r0x09, POSTDEC1
 MOVFF r0x0a, POSTDEC1
 MOVFF r0x0b, POSTDEC1
 MOVFF r0x0c, POSTDEC1
 MOVFF r0x0d, POSTDEC1
 MOVFF r0x0e, POSTDEC1
 MOVLW 0x02
 MOVFF PLUSW2, r0x00
; ;multiply lit val:0x11 by variable r0x00 and store in r0x00
; .line 140; main.c if (dir)
 MOVF r0x00, W
 MULLW 0x11
 MOVF PRODH, W
 MOVWF r0x01
 MOVFF PRODL, r0x00
 MOVLW LOW(_g_stepper_states)
 ADDWF r0x00, F
 MOVLW HIGH(_g_stepper_states)
 ADDWFC r0x01, F
 MOVF r0x00, W
 ADDLW 0x08
 MOVWF r0x02
 MOVLW 0x00
 ADDWFC r0x01, W
 MOVWF r0x03
 MOVF r0x00, W
 ADDLW 0x06
 MOVWF r0x04
 MOVLW 0x00
 ADDWFC r0x01, W
 MOVWF r0x05
 MOVF r0x00, W
 ADDLW 0x0d
 MOVWF r0x06
 MOVLW 0x00
 ADDWFC r0x01, W
 MOVWF r0x07
 MOVLW 0x09
 ADDWF r0x00, F
 BTFSC STATUS, 0
 INCF r0x01, F
_00117_DS_:
; .line 141; main.c pos += dlt;
 MOVFF _g_low_pri_isr_guard, r0x08




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