SA21-9213-0_IBM_5100aplRef.pdf
Page210(210 of 232)
Character Character Name index (0 Iocl) 204 g >V P m ..., Note: The remaining elements (187-256) are unused. -- __-- I I
Appendix D. 5100 APL Compatibility with IBM APLSV The 5100 APL system differs from the IBM APLSV system primarily because the 5100 is a single user system with different input/output devices and it has display screen output rather than typewriter output. The differences are as follows: 0 Turning power on signs the user on; therefore, no sign-on or ID number is required. The 5100 active workspace is generally smaller than APLSV active workspace. It is further limited by the shared variable processor which uses it for input/ output buffers and work areas. The default number of symbols is 125 instead of 256, which increases the avail- able workspace for most users. The library number that appears in system commands has been redefined to a device/file number. It is a 1- to 5-digit number that specifies the device and file number where a workspace is to be )SAVE'd or )LOAD'ed. If the number is less than 4 digits, it is only the file number; device 1 is assumed; otherwise, the high-order 1 or 2 digits is the device number. The )LOAD, )COPY, )PCOPY commands require the library (device/file) num- ber and workspace ID parameters. The )DROP command requires the library (device/file) number and if the specified file is a stored workspace file, the workspace ID parameters. These requirements protect the user from inadver- tently destroying his or her saved workspaces. 0 The following commands are not supported because they apply only to multi- terminal systems and remote systems: )OFF; )OFF HOLD; )CONTINUE HOLD; )PORT'S; )MSGN; )MSG; )OPRN; IOPR; all special system operator commands 0 The following commands are not supported because the function is not supported: )GROUP; )GRPS; )GRP 0 The following commands are not supported: )ORIGIN; )WIDTH; )DIGITS They are available with the system variables 010, UPW, and OPP, respectively. 205