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58 lines
1.4 KiB
Lua
58 lines
1.4 KiB
Lua
%import syslib
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%import textio
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%import floats
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%zeropage basicsafe
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; Note: this program is compatible with C64 and CX16.
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main {
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sub start() {
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txt.lowercase()
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; use optimized routine to write text
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txt.print("Hello!\n")
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; use iteration to write text
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str question = "How are you?\n"
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ubyte char
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for char in question
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txt.chrout(char)
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; use indexed loop to write characters
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str bye = "Goodbye!\n"
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for char in 0 to len(bye)-1
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txt.chrout(bye[char])
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ubyte time_lo
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ubyte time_mid
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ubyte time_hi
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%asm {{
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stx P8ZP_SCRATCH_REG
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jsr c64.RDTIM ; A/X/Y
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sta time_lo
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stx time_mid
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sty time_hi
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ldx P8ZP_SCRATCH_REG
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}}
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float clock_seconds = ((mkword(time_mid, time_lo) as float) + (time_hi as float)*65536.0) / 60
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float hours = floor(clock_seconds / 3600)
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clock_seconds -= hours*3600
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float minutes = floor(clock_seconds / 60)
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clock_seconds = floor(clock_seconds - minutes * 60.0)
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txt.print("system time (jiffy clock) is ")
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floats.print_f(hours)
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txt.chrout(':')
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floats.print_f(minutes)
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txt.chrout(':')
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floats.print_f(clock_seconds)
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txt.chrout('\n')
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txt.print("bye!\n")
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}
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}
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