c64os_prg_5_e.asm

chloaded  .byte 0

ldchksum  ;--- Load checksum.lib ---
          .block
          lda chloaded
          bne done  ;Already loaded

          ldx #"c" ;checksum.lib
          ldy #"h"
          lda #3   ;3 pages, no flags
          jsr loadlib
        
          ;A <- page address of library
        
          ;--- Link checksum.lib ---

          sta maketab+2
          sta initcrc+2
          sta updc16+2
          sta getcrc+2

          inc chloaded ;Mark as loaded

done      rts
          .bend