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Cream of the Crop 1
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XRS502.ARJ
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XRS_UMB.USE
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1992-03-10
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XRS version 5 uses DOS 5.0 (or QEMM or 386^Max, etc) "Upper Memory Blocks"
(UMBs) to store both data and place the read buffer for the main file, and
editor and backup buffers if possible. This can place as much as 120K+ of
RAM outside the lower 640K memory (which also doesn't need to be swapped
out if you call an external program or Shell-to-DOS). The example below is
my own system with a 75x100 video screen, showing XRS 5.0 using 102K memory
at the time I shelled to DOS (and notice - only 240 bytes left as a 'stub')
using the <F10> hot-key. The comments (RESP_RTL etc) are my own... Notice
in this case, you're actually editing the response message in a UMB! Note
that this version incorporates error-detection routines not found in prior
versions - if you had problems before, you may want to try it again. To
totally disable XRS's UMB support, put "No UMB" into your CONFIG.XRS file.
=====
MAPMEM 3.3, Copyright 1991 TurboPower Software
Psp Cnt Size Name Command Line Hooked Vectors
---- --- ------ ---------- ------------------- --------------------------------
2 15,376 DOS
03C4 2 3,168 COMMAND x 2E
1 64 ---free---
1 224 ---free---
04A0 2 240 RESP_RTL n/a
04BB 3 2,880 command /u 04 22 23 24 F5
0572 2 633,200 ---free---
655,360 ---total--
High Memory
0266 2 73,728 (RAMDRIVE)
CA01 1 416 SETVER n/a
CA22 2 4,784 DYNASCAN -on
1 224 ---free---
CB58 1 16,752 MOUSE n/a 08 0C 10 33
CF70 1 4,128 DOSKEY 2F
D073 1 32,768 UMB (RESP_RTL) BAT1MAIL.XRS Read Buffer 32K
D874 1 20,480 UMB (RESP_RTL) Editor Backup Buffer + 20K = 52K
DD75 1 15,008 UMB (RESP_RTL) Page/Screen save Buffer + 15K = 67K
E120 1 20,480 UMB (RESP_RTL) Editor Buffer in UMB + 20K = 87K
E621 1 15,008 UMB (RESP_RTL) Page/Screen save Buffer + 15K = 102K
1 9,008 ---free---
FD01 1 1,136 RAMDRIVE n/a
1 80 ---free---
FD4F 1 2,576 FILES
1 224 ---free---
FF01 1 112 QEMM386 1D
FF09 1 1,888 XANSI n/a 29
1 2,000 ---free---
221,136 ---total--