Alternative HP-41CL mainframe (OS ROMs) update for beta test

[Sylvain Cote]

(10-01-2019 04:19 PM)hth Wrote:  With some help from Monte, I came up with the following.
First load them to a sequence of RAM pages:
820 NUT0
821 NUT1
822 NUT2
823 XFUNS3
824 TIME
825 XFUNS5
Then "%820 0" PPLUG and "*824 5" PPLUG sets up the mapping and finally MAPEN to enable it.
MAPEN is needed every time you turn the 41CL on (the actual configuration seems to stay).

ok, it seems to work.

Test machine: 41CLv2 - FDBVER? show 09/04/2019 (M/D/Y)

Bug #1 : EMROOM only report 124 registers

Code:

memory lost         EMROOM  // 600 registers - OK  - original  41OS
MMUEN               EMROOM  // 600 registers - OK  - original  41OS
MAPEN               EMROOM  // 124 registers - BUG - alternate 41OS
"ABC"   10  CRFLD   EMROOM  // 112 registers - BUG - alternate 41OS
OFF     ON          EMROOM  // 588 registers - OK  - original  41OS
MAPEN               EMROOM  // 112 registers - BUG - alternate 41OS
MAPDIS              EMROOM  // 588 registers - OK  - original  41OS

Bug #2 : EMROOM registers report inconsistent (starting from previous setup)

Code:

OFF                         // insert CCD module
ON                  EMROOM  // 588 registers - OK  - original  41OS
MAPEN               EMROOM  // 112 registers - BUG - alternate 41OS
ASN "FACT" -15              // create a key asignment
"MYK"   SAVEK       EMROOM  // 585 registers - OK  - alternate 41OS - inconsistent with previous behaviour
MAPDIS              EMROOM  // 585 registers - OK  - original  41OS
MAPEN               EMROOM  // 585 registers - OK  - alternate 41OS - inconsistent with previous behaviour

Code:

"MYK"   PURFL       EMROOM  // 588 registers - OK  - alternate 41OS
MAPDIS              EMROOM  // 588 registers - OK  - original  41OS
MAPEN               EMROOM  // 588 registers - OK  - alternate 41OS
OFF     ON          EMROOM  // 588 registers - OK  - original  41OS
MAPEN               EMROOM  // 588 registers - OK  - alternate 41OS
memory lost         EMROOM  // 600 registers - OK  - original  41OS
MMUEN               EMROOM  // 600 registers - OK  - original  41OS
MAPEN               EMROOM  // 124 registers - BUG - alternate 41OS

Sylvain