DOS cmd >d BASIC BIN 10398 BCD ASM 1074 BCD2 ASM 1074 BOOT BIN 8245 BOOT6502BIN 22576 LCD ASM 1792 LCD BIN 266 SIEVE ASM 3383 SIEVE BIN 207 SIEVEROMASM 1810 SIEVEROMBIN 8192 TSTADC ASM 757 TSTSBC ASM 757 /LOST DIR 0 >x sieve.bin .load.exe 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499 503 509 521 523 541 547 557 563 569 571 577 587 593 599 601 607 613 617 619 631 641 643 647 653 659 661 673 677 683 691 701 709 719 727 733 739 743 751 757 761 769 773 787 797 809 811 821 823 827 829 839 853 857 859 863 877 881 883 887 907 911 919 929 937 941 947 953 967 971 977 983 991 997 1009 1013 1019 1021 1031 1033 1039 1049 1051 1061 1063 1069 1087 1091 1093 1097 1103 1109 1117 1123 1129 1151 1153 1163 1171 1181 1187 1193 1201 1213 1217 1223 1229 1231 1237 1249 1259 1277 1279 1283 1289 1291 1297 1301 1303 1307 1319 1321 1327 1361 1367 1373 1381 1399 1409 1423 1427 1429 1433 1439 1447 1451 1453 1459 1471 1481 1483 1487 1489 1493 1499 1511 1523 1531 1543 1549 1553 1559 1567 1571 1579 1583 1597 1601 1607 1609 1613 1619 1621 1627 1637 1657 1663 1667 1669 1693 1697 1699 1709 1721 1723 1733 1741 1747 1753 1759 1777 1783 1787 1789 1801 1811 1823 1831 1847 1861 1867 1871 1873 1877 1879 1889 1901 1907 1913 1931 1933 1949 1951 1973 1979 1987 1993 1997 1999 2003 2011 2017 2027 2029 2039 >t sieve.asm str0 = $E000 cout = $E003 uart_getch = $E006 uart_gets = $E009 prthex = $E00C beep1 = $E00F i2cwr = $E012 i2crd = $E015 spibyte = $E018 spiwr = $E01B spird = $E01E mmc_init = $E021 mmc_rd_sector = $E024 mmc_wr_sector = $E027 FAT_init = $E02A FAT_search_dir = $E02D FAT_clus2sec = $E030 FAT_next_cluster = $E033 FAT_list_dir = $E036 FAT_chdir = $E039 read_sector_from_file = $E03C execfile = $E03F *=0 tmp1: *=*+1 tmp2: *=*+1 tmp3: *=*+1 tmp4: *=*+1 ptr1: *=*+2 ptr2: *=*+2 ptr3: *=*+2 ptr4: *=*+2 sp: *=*+2 ; Stack pointer sreg: *=*+2 ; Secondary register/high 16 bit for longs regsave: *=*+2 ; slot to save/restore (E)AX into regbank: *=*+6 ; 6 byte register bank MMCcmd: *=*+1 ; MMC command+address(32 bits)+crc MMCaddr3: *=*+1 MMCaddr2: *=*+1 MMCaddr1: *=*+1 MMCaddr0: *=*+1 MMCcrc: *=*+1 sector: sector0: *=*+1 ; sector (24 bits) sector1: *=*+1 sector2: *=*+1 FAT: *=*+3 ; first sector of the FAT (1st copy) FATsecperclus: *=*+1 FATnrootsec: *=*+2 ; number of sectors of the root directory FATrootsec: *=*+3 ; first sector of the root directory dircluster: *=*+2 ; start cluster for current subdirectory (zero if root) cluster: *=*+2 ; current cluster (16 bits) Filesize: *=*+4 ; cluster and Filesize must be on consecutive addresses sectorcnt: *=*+1 ; Remaining sectors in the cluster FileFlags: *=*+1 ; Flags for files (only EOF yet) ;------------------- App variables ----------------------- *=128 number: *=*+2 index: *=*+2 *=$300 dirload: .byte $B0,$CA ; Marca de ejecucion .word dirload ; Direccion de carga .word direxe ; Direccion de ejecucion direxe: ldy #0 ; Mark all numbers as primes to begin lda #$ff l1: sta array,y iny bne l1 sty number+1 ; start with number=2 lda #2 sta number mbuc: lda number ; check if prime sta tmp1 lda number+1 sta tmp2 lsr tmp2 ; y = number/8 ror tmp1 lsr tmp2 ror tmp1 lsr tmp2 ror tmp1 ldy tmp1 lda number ; A = 1<<(number&7) and #7 tax lda #1 cpx #0 beq l3 l2: asl dex bne l2 l3: and array,y ; check bit bne l35 ; not prime jmp nxn ; number is prime. print it l35: lda number sta tmp1 lda number+1 sta tmp2 ; tmp1-tmp2: data to be printed ldy #0 prn1: ;------------- divide tmp1-tmp2 by 10. Remainder result in A ldx #16 lda #0 dv1: asl tmp1 rol tmp2 rol cmp #10 bcc dv2 sbc #10 inc tmp1 dv2: dex bne dv1 ;------------- clc adc #'0' pha iny lda tmp1 ora tmp2 bne prn1 ;------------- prn2: pla jsr cout dey bne prn2 lda #' ' jsr cout ;--------------- Now, mark every multiple of number as not prime lda number ; index=number sta index lda number+1 sta index+1 buc2: clc ; index+=number lda index adc number sta index sta tmp1 lda index+1 adc number+1 sta index+1 sta tmp2 lda #7 ; if (index>=$800) break cmp index+1 bmi nxn lsr tmp2 ; y = index/8 ror tmp1 lsr tmp2 ror tmp1 lsr tmp2 ror tmp1 ldy tmp1 lda index ; A = ~(1<<(number&7)) and #7 tax lda #1 cpx #0 beq l7 l6: asl dex bne l6 l7: eor #$ff and array,y ; mark the bit sta array,y jmp buc2 nxn: ;brk ;brk inc number ; number++ bne l5 inc number+1 l5: lda number+1 ; if (number&0x7ff)!=0 continue cmp #8 beq theend jmp mbuc theend: rts array: ; 256 byte array >