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Re: 6502bench SourceGen disassembler updated [message #388181 is a reply to message #388166]

Wed, 30 October 2019 00:54

Anonymous

Karma:

Originally posted by: fadden

WAIT just a second...

The listing of the original (non-autostart) monitor ROM, as found in the Apple II Reference Manual, says:

fca8: 38 WAIT sec
fca9: 48 WAIT2 pha
fcaa: e9 01 WAIT3 sbc #$01 ;1.0204 usec
fcac: d0 fc bne WAIT3 ;(13+2712*A+512*A*A)
fcae: 68 pla
fcaf: e9 01 sbc #$01
fcb1: d0 f6 bne WAIT2
fcb3: 60 rts

So there are two comments, and both seem completely wrong.

If we consult Apple II Monitors Peeled page 85, it says the formula is:

2.5A**2 + 13.5A + 13 machine cycles of 1.023 microseconds

However, my understanding is that the 6502 is running at 1.023MHz, so each cycle actually takes 0.9775 usec. Am I missing something, or did they get the math wrong?

The old monitor ROM listing in the Apple II Reference Manual had a lot more comments than the autostart version, so I transcribed it in SourceGen:
https://bigflake.com/disasm/a2-f8rom/OrigF8ROM.html

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		6502bench SourceGen disassembler updated By: Anonymous on Sun, 04 August 2019 18:15
		6502bench SourceGen disassembler updated By: Antoine Vignau on Mon, 05 August 2019 02:46
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 05 August 2019 10:40
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 05 August 2019 16:31
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 05 August 2019 17:45
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 07 August 2019 05:38
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 07 August 2019 10:50
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 07 August 2019 20:55
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 07 August 2019 20:57
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 09 September 2019 14:25
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 21 September 2019 19:30
		Re: 6502bench SourceGen disassembler updated By: Antoine Vignau on Sun, 22 September 2019 05:34
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 22 September 2019 22:02
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 25 September 2019 16:51
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 27 September 2019 17:54
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 02 October 2019 03:41
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 02 October 2019 10:58
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 03 October 2019 02:13
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 03 October 2019 10:37
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 05 October 2019 04:20
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 05 October 2019 14:23
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 27 September 2019 18:04
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 05 October 2019 04:40
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 06 October 2019 04:01
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 06 October 2019 17:12
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 06 October 2019 21:38
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 07 October 2019 20:36
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 07 October 2019 20:53
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 07 October 2019 21:14
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 07 October 2019 21:19
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 07 October 2019 20:58
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 07 October 2019 20:58
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 08 October 2019 16:28
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 08 October 2019 17:01
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 19 October 2019 14:28
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 25 October 2019 21:32
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 30 October 2019 19:41
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 19 November 2019 17:22
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 07 December 2019 16:22
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 26 December 2019 14:32
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 27 January 2020 17:05
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 27 January 2020 17:08
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 08 February 2020 18:05
		Re: 6502bench SourceGen disassembler updated By: Hugh Hood on Sat, 08 February 2020 20:20
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 09 February 2020 00:55
		Re: 6502bench SourceGen disassembler updated By: Michael AppleWin Debu on Mon, 17 February 2020 10:52
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 17 February 2020 18:38
		Re: 6502bench SourceGen disassembler updated By: Steven Hirsch on Tue, 18 February 2020 08:17
		Re: 6502bench SourceGen disassembler updated By: Michael AppleWin Debu on Tue, 18 February 2020 09:41
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 18 February 2020 11:44
		Re: 6502bench SourceGen disassembler updated By: Michael AppleWin Debu on Tue, 18 February 2020 12:35
		Re: 6502bench SourceGen disassembler updated By: Michael AppleWin Debu on Tue, 18 February 2020 12:45
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 18 February 2020 19:58
		Re: 6502bench SourceGen disassembler updated By: Michael AppleWin Debu on Wed, 19 February 2020 12:06
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 12 March 2020 13:37
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 30 March 2020 20:10
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 15 May 2020 16:15
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 11 July 2020 20:21
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 11 July 2020 20:48
		Re: 6502bench SourceGen disassembler updated By: TomCh on Mon, 13 July 2020 08:07
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 22 July 2020 14:19
		Re: 6502bench SourceGen disassembler updated By: Antoine Vignau on Wed, 22 July 2020 15:07
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 22 July 2020 20:33
		Re: 6502bench SourceGen disassembler updated By: Antoine Vignau on Thu, 23 July 2020 03:01
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 23 July 2020 10:57
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 31 July 2020 00:07
		Re: 6502bench SourceGen disassembler updated By: Antoine Vignau on Fri, 31 July 2020 02:54
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 13 August 2020 14:16
		Re: 6502bench SourceGen disassembler updated By: Antoine Vignau on Thu, 13 August 2020 16:28
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 13 August 2020 20:29
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 18 August 2020 11:47
		Re: 6502bench SourceGen disassembler updated By: David Schmidt on Tue, 18 August 2020 17:03
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 23 August 2020 14:25
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 24 September 2020 16:13
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 08 June 2021 17:28
		Re: 6502bench SourceGen disassembler updated By: erolfi on Wed, 09 June 2021 03:39
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 09 June 2021 10:48
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 10 June 2021 18:29
		Re: 6502bench SourceGen disassembler updated By: erolfi on Fri, 18 June 2021 14:00
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 19 June 2021 10:50
		Re: 6502bench SourceGen disassembler updated By: erolfi on Fri, 25 June 2021 02:33
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 25 June 2021 10:54
		Re: 6502bench SourceGen disassembler updated By: erolfi on Fri, 25 June 2021 02:34
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 16 August 2021 16:12
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 14 November 2021 12:49
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 14 November 2021 13:02
		Re: 6502bench SourceGen disassembler updated By: Steven Hirsch on Sun, 14 November 2021 17:21
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 14 November 2021 18:52
		Re: 6502bench SourceGen disassembler updated By: D Finnigan on Sun, 14 November 2021 23:52
		Re: 6502bench SourceGen disassembler updated By: D Finnigan on Sun, 14 November 2021 23:55
		Re: 6502bench SourceGen disassembler updated By: erolfi on Mon, 15 November 2021 08:16
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 15 November 2021 11:32
		Re: 6502bench SourceGen disassembler updated By: erolfi on Mon, 15 November 2021 11:48
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 30 March 2020 20:28
		Re: 6502bench SourceGen disassembler updated By: Antoine Vignau on Tue, 31 March 2020 07:20
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Fri, 25 October 2019 21:38
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Mon, 28 October 2019 17:55
		Re: 6502bench SourceGen disassembler updated By: Hugh Hood on Mon, 28 October 2019 19:14
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 29 October 2019 01:14
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 29 October 2019 04:37
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 29 October 2019 11:21
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 29 October 2019 22:48
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 30 October 2019 00:39
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 29 October 2019 05:44
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Tue, 29 October 2019 11:33
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 30 October 2019 00:54
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 30 October 2019 13:17
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Wed, 30 October 2019 19:45
		Re: 6502bench SourceGen disassembler updated By: Michael J. Mahon on Thu, 31 October 2019 03:24
		How long will I WAIT? By: Anonymous on Thu, 31 October 2019 12:07
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 20 October 2019 01:47
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 20 October 2019 10:51
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 20 October 2019 15:36
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sun, 20 October 2019 19:43
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Thu, 24 October 2019 21:46
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 26 October 2019 00:54
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 26 October 2019 11:43
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 26 October 2019 15:01
		Re: 6502bench SourceGen disassembler updated By: Anonymous on Sat, 26 October 2019 00:57

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