ecm loadhigh

[ecm-pushbx]

Reference: #166

There is one remaining oddity: If an out of bounds region is selected with eg /L:4 then the 3rd region is partially freed whereas I would expect it to be fully reserved like the 1st and 2nd regions. Log of a test session:

&; Welcome to lDebug!
Press any key to enter debugger terminal!
Timer stopped
V0=000000A5 V1=00000000 V2=00000000 V3=00000000  DCO=00000000 DCS=00000000
V4=00000000 V5=00000000 V6=00000000 V7=00000000  DAO=0000F007 DAS=0000F007
V8=00000000 V9=00000000 VA=00000000 VB=00000000  DIF=0180F008 DPI=0000:0000
VC=00000000 VD=00000000 VE=00000000 VF=00000000  DPR=7601     DPP=0000
Current mode: Virtual 86 Mode
-ldos
-q
Starting small lDOS (2025 February) based on MS-DOS v4.01
dosemu XMS 3.0 & UMB support enabled
init: Successfully relocated DOSCODE into the HMA.
init: UMB of size 2000h ( 128 KiB) at C000h allocated.
init: UMB of size 0A00h (  40 KiB) at F000h allocated.
init: UMB of size 0800h (  32 KiB) at B000h allocated.
EMUFS host file and print access available
dosemu EMS driver rev 0.9 installed.
dosemu CDROM driver installed (V0.2)
emufs: redirector enabled

FreeCom version 0.87 - GNUC - XMS_Swap [Feb 18 2025 19:57:17]
SEEKEXT 1.21: high loaded using 416 byte, on multiplex 00h.
emufs: redirector enabled
Welcome to dosemu2!
    Build 2.0pre9-dev-20240420-1892-g6a2f4f527
C:\>lh ldebug /cdm;q
&dm
PSP: 2950
025C 4D 0008 001A     416 B S type 09 S_UPB
0277 4D 0008 0009     144 B S type 08 S_DPB
0281 4D 0008 0000       0 B SD
0282 4D 0283 26CC   155 KiB LDEBUG
294F 4D 2950 76AF   474 KiB DEBUGGEE
9FFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
B000 4D 0008 0047    1136 B SD
B048 4D 0008 00CC   3.1 KiB S type 04 S_IRQSCODE
B115 4D C001 0100   4.0 KiB COMMAND
B216 4D B217 0019     400 B SEEKEXT
B230 4D 0000 05CE  23.2 KiB
B7FF 4D 0008 0800  32.0 KiB S type 30 S_EXCLDUMA
C000 4D C001 00A9   2.6 KiB COMMAND
C0AA 4D 0000 1F54   125 KiB
DFFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
F000 4D 0000 09FE  39.9 KiB
F9FF 5A 0008 0000       0 B S type 30 S_EXCLDUMA
&q
C:\>lh /l:1 ldebug /cdm;q
&dm
PSP: 2950
025C 4D 0008 001A     416 B S type 09 S_UPB
0277 4D 0008 0009     144 B S type 08 S_DPB
0281 4D 0008 0000       0 B SD
0282 4D 0283 26CC   155 KiB LDEBUG
294F 4D 2950 76AF   474 KiB DEBUGGEE
9FFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
B000 4D 0008 0047    1136 B SD
B048 4D 0008 00CC   3.1 KiB S type 04 S_IRQSCODE
B115 4D C001 0100   4.0 KiB COMMAND
B216 4D B217 0019     400 B SEEKEXT
B230 4D 0000 05CE  23.2 KiB
B7FF 4D 0008 0800  32.0 KiB S type 30 S_EXCLDUMA
C000 4D C001 00A9   2.6 KiB COMMAND
C0AA 4D C001 1F54   125 KiB COMMAND
DFFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
F000 4D C001 096D  37.7 KiB COMMAND
F96E 4D C001 0090   2.2 KiB COMMAND
F9FF 5A 0008 0000       0 B S type 30 S_EXCLDUMA
&q
C:\>lh /l:2 ldebug /cdm;q
&dm
PSP: 2950
025C 4D 0008 001A     416 B S type 09 S_UPB
0277 4D 0008 0009     144 B S type 08 S_DPB
0281 4D 0008 0000       0 B SD
0282 4D 0283 26CC   155 KiB LDEBUG
294F 4D 2950 76AF   474 KiB DEBUGGEE
9FFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
B000 4D 0008 0047    1136 B SD
B048 4D 0008 00CC   3.1 KiB S type 04 S_IRQSCODE
B115 4D C001 0100   4.0 KiB COMMAND
B216 4D B217 0019     400 B SEEKEXT
B230 4D C001 05CE  23.2 KiB COMMAND
B7FF 4D 0008 0800  32.0 KiB S type 30 S_EXCLDUMA
C000 4D C001 00A9   2.6 KiB COMMAND
C0AA 4D 0000 1F54   125 KiB
DFFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
F000 4D C001 096D  37.7 KiB COMMAND
F96E 4D C001 0090   2.2 KiB COMMAND
F9FF 5A 0008 0000       0 B S type 30 S_EXCLDUMA
&q
C:\>lh /l:3 ldebug /cdm;q
&dm
PSP: 2950
025C 4D 0008 001A     416 B S type 09 S_UPB
0277 4D 0008 0009     144 B S type 08 S_DPB
0281 4D 0008 0000       0 B SD
0282 4D 0283 26CC   155 KiB LDEBUG
294F 4D 2950 76AF   474 KiB DEBUGGEE
9FFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
B000 4D 0008 0047    1136 B SD
B048 4D 0008 00CC   3.1 KiB S type 04 S_IRQSCODE
B115 4D C001 0100   4.0 KiB COMMAND
B216 4D B217 0019     400 B SEEKEXT
B230 4D C001 05CE  23.2 KiB COMMAND
B7FF 4D 0008 0800  32.0 KiB S type 30 S_EXCLDUMA
C000 4D C001 00A9   2.6 KiB COMMAND
C0AA 4D C001 1F54   125 KiB COMMAND
DFFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
F000 4D 0000 096D  37.7 KiB
F96E 4D C001 0090   2.2 KiB COMMAND
F9FF 5A 0008 0000       0 B S type 30 S_EXCLDUMA
&q
C:\>lh /l:4 ldebug /cdm;q
Illegal memory region 4 - ignored.
&dm
PSP: 2950
025C 4D 0008 001A     416 B S type 09 S_UPB
0277 4D 0008 0009     144 B S type 08 S_DPB
0281 4D 0008 0000       0 B SD
0282 4D 0283 26CC   155 KiB LDEBUG
294F 4D 2950 76AF   474 KiB DEBUGGEE
9FFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
B000 4D 0008 0047    1136 B SD
B048 4D 0008 00CC   3.1 KiB S type 04 S_IRQSCODE
B115 4D C001 0100   4.0 KiB COMMAND
B216 4D B217 0019     400 B SEEKEXT
B230 4D C001 05CE  23.2 KiB COMMAND
B7FF 4D 0008 0800  32.0 KiB S type 30 S_EXCLDUMA
C000 4D C001 00A9   2.6 KiB COMMAND
C0AA 4D C001 1F54   125 KiB COMMAND
DFFF 4D 0008 1000  64.0 KiB S type 30 S_EXCLDUMA
F000 4D C001 034A  13.1 KiB COMMAND
F34B 4D 0000 0622  24.5 KiB
F96E 4D C001 0090   2.2 KiB COMMAND
F9FF 5A 0008 0000       0 B S type 30 S_EXCLDUMA
&q
C:\>