more sane directory name, updated binaries

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FeralChild64 committed 2020-06-26 19:44:01 +02:00
1 parent d4d32095d1
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// #LAYOUT# STD * #TAKE
// #LAYOUT# * KERNAL_0 #TAKE
// #LAYOUT# * * #IGNORE
//
// Official Kernal routine, described in:
//
// - [RG64] C64 Programmers Reference Guide - page 299/300
// - [CM64] Computes Mapping the Commodore 64 - page 232
//
// CPU registers that has to be preserved (see [RG64]): .A, .X, .Y
//
SETTIM:
// Disable interrupts for the duration of the routine, to prevent
// jiffy clock update while changing its values
sei
// Store the jiffy clock state
sty TIME + 0
stx TIME + 1
sta TIME + 2
// Enable interrupts. More elegant solution would be pha + sei + ... + pla,
// but (checked by running a test program) original ROM routine always
// leaves IRQs enabled.
cli
rts