> This statement about 20-bit displacements appears to be incorrect. Any
> attempt to specify an implicit "address" outside the range of a 12-bit
> displacement generates msgASMA307E.
I did some experimenting by adding LABELs to the usings and explicitly
qualifying the operands to the OIY instruction. It still failed with the same
error.
It then occurred to me that the range of normal usings and labeled usings are
clearly documented as 4 KB maximum. Only the dependent using mentions the
20-bit displacement. But this is a catch-22. I'm not sure you can use it, but
TinyArea can be 8000 bytes:
0000F 17+R15 EQU 15
R:4 00000 18 lbig USING BigArea,R4
000000 EB80 4FA0 0056 00FA0 19 OIY lbig.Byte,Bit
4 FA0 00000 00FA0 20 USING TinyArea,lbig.Byte
000006 EB80 4EE0 0256 01F40 21 OIY TinyFlag,Bit
000000 00000 00FA8 22 BigArea DSECT ,
000000 23 DS 4000X'00'
000FA0 24 Byte DS XL1
00080 25 Bit EQU X'80'
000FA1 26 DS XL7
000000 00000 01F41 27 TinyArea DSECT ,
000000 28 DS 8000X'00'
001F40 29 TinyFlag DS XL1
30 END ,
Regards, Tom
G. Tom Russell
“Stay calm. Be brave. Wait for the signs” — Jasper FriendlyBear
“… and remember to leave good news alone.” — Gracie HeavyHand
