📄 counter.lst
字号:
00019e 6ef6 MOVWF 0xf6,0x0
0001a0 0e00 MOVLW 0x0
0001a2 6ef7 MOVWF 0xf7,0x0
0001a4 0e00 MOVLW 0x0
0001a6 6ef8 MOVWF 0xf8,0x0
_asm C:\mcc18\src\startup\c018i.c
0001a8 0100 MOVLB 0x0 movlb data_ptr C:\mcc18\src\startup\c018i.c
0001aa 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001ac 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001ae 6f85 MOVWF 0x85,0x1 movwf curr_entry, 1 C:\mcc18\src\startup\c018i.c
0001b0 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001b2 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001b4 6f86 MOVWF 0x86,0x1 movwf curr_entry+1, 1 C:\mcc18\src\startup\c018i.c
_endasm C:\mcc18\src\startup\c018i.c
//while (curr_entry) C:\mcc18\src\startup\c018i.c
//{ C:\mcc18\src\startup\c018i.c
test: C:\mcc18\src\startup\c018i.c
_asm C:\mcc18\src\startup\c018i.c
0001b6 e103 BNZ 0x1be bnz 3 C:\mcc18\src\startup\c018i.c
0001b8 6785 TSTFSZ 0x85,0x1 tstfsz curr_entry, 1 C:\mcc18\src\startup\c018i.c
0001ba d001 BRA 0x1be bra 1 C:\mcc18\src\startup\c018i.c
_endasm C:\mcc18\src\startup\c018i.c
0001bc d03d BRA 0x238 goto done; C:\mcc18\src\startup\c018i.c
/* Count down so we only have to look up the data in _cinit C:\mcc18\src\startup\c018i.c
* once. C:\mcc18\src\startup\c018i.c
* C:\mcc18\src\startup\c018i.c
* At this point we know that TBLPTR points to the top of the current C:\mcc18\src\startup\c018i.c
* entry in _cinit, so we can just start reading the from, to, and C:\mcc18\src\startup\c018i.c
* size values. C:\mcc18\src\startup\c018i.c
*/ C:\mcc18\src\startup\c018i.c
_asm C:\mcc18\src\startup\c018i.c
/* read the source address */ C:\mcc18\src\startup\c018i.c
0001be 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001c0 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001c2 6f80 MOVWF 0x80,0x1 movwf prom, 1 C:\mcc18\src\startup\c018i.c
0001c4 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001c6 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001c8 6f81 MOVWF 0x81,0x1 movwf prom+1, 1 C:\mcc18\src\startup\c018i.c
0001ca 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001cc 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001ce 6f82 MOVWF 0x82,0x1 movwf prom+2, 1 C:\mcc18\src\startup\c018i.c
/* skip a byte since it's stored as a 32bit int */ C:\mcc18\src\startup\c018i.c
0001d0 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
/* read the destination address directly into FSR0 */ C:\mcc18\src\startup\c018i.c
0001d2 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001d4 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001d6 6ee9 MOVWF 0xe9,0x0 movwf FSR0L, 0 C:\mcc18\src\startup\c018i.c
0001d8 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001da 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001dc 6eea MOVWF 0xea,0x0 movwf FSR0H, 0 C:\mcc18\src\startup\c018i.c
/* skip two bytes since it's stored as a 32bit int */ C:\mcc18\src\startup\c018i.c
0001de 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001e0 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
/* read the destination address directly into FSR0 */ C:\mcc18\src\startup\c018i.c
0001e2 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001e4 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001e6 6f83 MOVWF 0x83,0x1 movwf curr_byte, 1 C:\mcc18\src\startup\c018i.c
0001e8 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001ea 50f5 MOVF 0xf5,0x0,0x0 movf TABLAT, 0, 0 C:\mcc18\src\startup\c018i.c
0001ec 6f84 MOVWF 0x84,0x1 movwf curr_byte+1, 1 C:\mcc18\src\startup\c018i.c
/* skip two bytes since it's stored as a 32bit int */ C:\mcc18\src\startup\c018i.c
0001ee 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
0001f0 0009 TBLRDPOSTINC tblrdpostinc C:\mcc18\src\startup\c018i.c
_endasm C:\mcc18\src\startup\c018i.c
//prom = data_ptr->from; C:\mcc18\src\startup\c018i.c
//FSR0 = data_ptr->to; C:\mcc18\src\startup\c018i.c
//curr_byte = (unsigned short) data_ptr->size; C:\mcc18\src\startup\c018i.c
/* the table pointer now points to the next entry. Save it C:\mcc18\src\startup\c018i.c
* off since we'll be using the table pointer to do the copying C:\mcc18\src\startup\c018i.c
* for the entry. C:\mcc18\src\startup\c018i.c
*/ C:\mcc18\src\startup\c018i.c
0001f2 cff6 MOVFF 0xff6,0x87 data_ptr = TBLPTR; C:\mcc18\src\startup\c018i.c
0001f4 f087
0001f6 cff7 MOVFF 0xff7,0x88
0001f8 f088
0001fa cff8 MOVFF 0xff8,0x89
0001fc f089
C:\mcc18\src\startup\c018i.c
/* now assign the source address to the table pointer */ C:\mcc18\src\startup\c018i.c
0001fe c080 MOVFF 0x80,0xff6 TBLPTR = prom; C:\mcc18\src\startup\c018i.c
000200 fff6
000202 c081 MOVFF 0x81,0xff7
000204 fff7
000206 c082 MOVFF 0x82,0xff8
000208 fff8
C:\mcc18\src\startup\c018i.c
/* do the copy loop */ C:\mcc18\src\startup\c018i.c
_asm C:\mcc18\src\startup\c018i.c
// determine if we have any more bytes to copy C:\mcc18\src\startup\c018i.c
00020a 0100 MOVLB 0x0 movlb curr_byte C:\mcc18\src\startup\c018i.c
00020c 5383 MOVF 0x83,0x1,0x1 movf curr_byte, 1, 1 C:\mcc18\src\startup\c018i.c
copy_loop: C:\mcc18\src\startup\c018i.c
00020e e102 BNZ 0x214 bnz 2 // copy_one_byte C:\mcc18\src\startup\c018i.c
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