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cc65/libsrc/c16/systime.s
uz 931add050e Added a systime implementation by Stefan Haubenthal with a few changes. The
routine reads the TOD clock of CIA1 on the C64 and C128. Since systime was a
dummy routine common for all CBMs before, this change adds an individual dummy
routine for all other CBM systems. CBM510/610 do also have a TOD clock, so a
similar function as in the C64 could be used ...


git-svn-id: svn://svn.cc65.org/cc65/trunk@3974 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-07-27 18:44:37 +00:00

29 lines
428 B
ArmAsm

;
; Ullrich von Bassewitz, 12.11.2002
;
; time_t _systime (void);
; /* Similar to time(), but:
; * - Is not ISO C
; * - Does not take the additional pointer
; * - Does not set errno when returning -1
; */
;
.export __systime
.importzp sreg
.code
.proc __systime
lda #$FF
tax
sta sreg
sta sreg+1
rts ; Return -1
.endproc