CMT 64Kb RAM module for HP-71b question

[Sylvain Cote]

(10-10-2021 12:07 PM)mfleming Wrote:  Yes, you've run out of address space with the default MultiMod configuration plus three 32K RAM modules. I think the address assignment after power up would be

Sure ?

VER$ -> HP71:1BBBB RCPY:E FTH:1B EDT:A KBD:C STRU:A MATH:2B JPC:F05 HPIL:1B

Modified MEMBUF output for MULTIMOD default config no additional memory module

Code:

Addr. Range   Port Dev Seq  Size Addr  Type   Description
00000..0FFFF                                  System    ROM   32K
10000..1FFFF                                  System    ROM   32K
20000..2FFFF                                  Reserved        32K (video RAM, configuration, etc)
30000..31FFF    0   0   0     4  30000  0     Internal  RAM    4K
32000..33FFF    0   1   0     4  32000  0     Internal  RAM    4K
34000..35FFF    0   2   0     4  34000  0     Internal  RAM    4K
36000..37FFF    0   3   0     4  36000  0     Internal  RAM    4K

Code:

38000..3FFFF                                  Unused          16K
40000..47FFF    0   5   0    16  40000  2     HP-IL     ROM   16K
48000..4FFFF    5   0   0    16  48000  2     Forth     ROM   16K
50000..5FFFF                                  Unused          32K
60000..6FFFF                                  Unused          32K
70000..7FFFF                                  Unused          32K
80000..8FFFF                                  Unused          32K

Code:

90000..9FFFF                                  Unused          32K
A0000..AFFFF                                  Unused          32K
B0000..BFFFF                                  Unused          32K
C0000..CFFFF    5   2   0    32  C0000  2     JPC       ROM   32K
D0000..DFFFF    5   1   0    32  D0000  2     Math      ROM   32K
E0000..EFFFF    0   0   0    32  E0000  1     Forth     ROM   32K (hard-configured, seen as IRAM)
F0000..FFFFF                                  Reserved        32K (debugger, configuration, etc)

Modified MEMBUF output for MULTIMOD default config with three 32K RAM

Code:

Addr. Range   Port Dev Seq  Size Addr  Type   Description
00000..0FFFF                                  System    ROM   32K
10000..1FFFF                                  System    ROM   32K
20000..2FFFF                                  Reserved        32K (video RAM, configuration, etc)
30000..31FFF    0   0   0     4  30000  0     Internal  RAM    4K
32000..33FFF    0   1   0     4  32000  0     Internal  RAM    4K
34000..35FFF    0   2   0     4  34000  0     Internal  RAM    4K
36000..37FFF    0   3   0     4  36000  0     Internal  RAM    4K

Code:

38000..3FFFF                                  Unused          16K
40000..47FFF    0   5   0    16  40000  2     HP-IL     ROM   16K
48000..4FFFF    5   0   0    16  48000  2     Forth     ROM   16K
50000..5FFFF                                  Unused          32K
60000..6FFFF                                  Unused          32K
70000..7FFFF                                  Unused          32K
80000..8FFFF                                  Unused          32K

Code:

90000..9FFFF    5   2   0    32  90000  2     JPC       ROM   32K
A0000..AFFFF    5   1   0    32  A0000  2     Math      ROM   32K
B0000..BFFFF    3   0   0    32  B0000  1     External  IRAM  32K Port 3
C0000..CFFFF    2   0   0    32  C0000  1     External  IRAM  32K Port 2
D0000..DFFFF    1   0   0    32  D0000  1     External  IRAM  32K Port 1
E0000..EFFFF    0   0   0    32  E0000  1     Forth     ROM   32K (hard-configured, seen as IRAM)
F0000..FFFFF                                  Reserved        32K (debugger, configuration, etc)

Modified MEMBUF output for MULTIMOD default config with four 32K RAM (48K Unused)

Code:

Addr. Range   Port Dev Seq  Size Addr  Type
00000..0FFFF                                  System    ROM   32K
10000..1FFFF                                  System    ROM   32K
20000..2FFFF                                  Reserved        32K (video RAM, configuration, etc)
30000..3FFFF    1   0   0    32  30000  0     External  RAM   32K Port 1
40000..4FFFF    2   0   0    32  40000  0     External  RAM   32K Port 2
50000..5FFFF    3   0   0    32  50000  0     External  RAM   32K Port 3
60000..6FFFF    4   0   0    32  60000  0     External  RAM    4K

Code:

70000..71FFF    0   0   0     4  70000  0     Internal  RAM    4K
72000..73FFF    0   1   0     4  72000  0     Internal  RAM    4K
74000..75FFF    0   2   0     4  74000  0     Internal  RAM    4K
76000..77FFF    0   3   0     4  76000  0     Internal  RAM    4K
78000..7FFFF                                  Unused          16K
80000..87FFF    0   5   0    16  80000  2     HP-IL     ROM   16K
88000..8FFFF    5   0   0    16  88000  2     Forth     ROM   16K

Code:

90000..9FFFF                                  Unused          32K
A0000..AFFFF                                  Unused          32K
B0000..BFFFF                                  Unused          32K
C0000..CFFFF    5   2   0    32  C0000  2     JPC       ROM   32K
D0000..DFFFF    5   1   0    32  D0000  2     Math      ROM   32K
E0000..EFFFF    0   0   0    32  E0000  1     Forth     ROM   32K (hard-configured, seen as IRAM)
F0000..FFFFF                                  Reserved        32K (debugger, configuration, etc)

Modified MEMBUF output for MULTIMOD default config with two 32K RAM and two 64K RAM

Code:

Addr. Range   Port Dev Seq  Size Addr  Type
00000..0FFFF                                  System    ROM   32K
10000..1FFFF                                  System    ROM   32K
20000..2FFFF                                  Reserved        32K (video RAM, configuration, etc)
30000..3FFFF    1   0   0    32  30000  0     External  RAM   32K Port 1
40000..4FFFF    2   0   0    32  40000  0     External  RAM   32K Port 2
50000..5FFFF    3   0   0    32  50000  0     External  RAM   32K Port 3.00 first  32K of 64K Module
60000..6FFFF    3   1   0    32  60000  0     External  RAM   32K Port 3.01 second 32K of 64K Module

Code:

70000..7FFFF    4   0   0    32  70000  0     External  RAM   32K Port 4.00 first  32K of 64K Module
80000..8FFFF    4   1   0    32  80000  0     External  RAM   32K Port 4.01 second 32K of 64K Module
90000..91FFF    0   0   0     4  90000  0     Internal  RAM    4K
92000..93FFF    0   1   0     4  92000  0     Internal  RAM    4K
94000..95FFF    0   2   0     4  94000  0     Internal  RAM    4K
96000..97FFF    0   3   0     4  96000  0     Internal  RAM    4K
98000..9FFFF                                  Unused          16K

Code:

A0000..A7FFF    0   5   0    16  A0000  2     HP-IL     ROM   16K
A8000..AFFFF    5   0   0    16  A8000  2     Forth     ROM   16K
B0000..BFFFF                                  Unused          32K
C0000..CFFFF    5   2   0    32  C0000  2     JPC       ROM   32K
D0000..DFFFF    5   1   0    32  D0000  2     Math      ROM   32K 
E0000..EFFFF    0   0   0    32  E0000  1     Forth     ROM   32K (hard-configured, seen as IRAM)
F0000..FFFFF                                  Reserved        32K (debugger, configuration, etc)