"The displacement for A is treated as a 12-bit
*unsigned* binary integer. The displacement for AY,
AG, AGF, AGSI and ASI, is treated as a 20-bit *signed*
binary integer."

I contributed the asterisks. The rest is from the POps.

--

Regards, Gord Tomlin
Action Software International
(a division of Mazda Computer Corporation)
Tel: (905) 470-7113, Fax: (905) 470-6507

On 2012-06-04 15:20, McKown, John wrote:
No such thing as a negative displacement. A displacement is more like an 
unsigned immediate operand. From 0..4095 (0x000 to 0xFFF for a 12 bit 
displacement) or 0..1048575 (0x00000 to 0xFFFFF for a 20 bit long displacement).

--
John McKown
Systems Engineer IV
IT

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-----Original Message-----
From: IBM Mainframe Assembler List
[mailto:[email protected]] On Behalf Of Jan Ott
Sent: Monday, June 04, 2012 2:14 PM
To: [email protected]
Subject: anti 4095 base guys

i guess you guys would never set the base to he last byte of
the program or
dsect; having all negative displacements.




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