IBM BSL bulletinSep69 free download

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BSL BULLETIN NO. 7 - - September 19, 1969 The BSL Bulletin is a nleans of distributing information about BSL to IBMers who are using BSL. All BSL users should be receiving the BSL Bulletin. A form for having names added to the distribution list is provided at the back of this BSL Bulletin. This BSL Bulletin contains information concerning: BSL/ eleven' The availability of BSL/12 System control blocks in BSL BSL/ eleven' BSL/ eleven' is a modification of the eleventh internal release of the BSL compiler. It can be ordered from Department D76, SDD, Poughkeepsie, New York. Programmers using BSL under CLEAR PTM release 20 should be using BSL/ eleven'. In addition to a change that makes BSL compatible with CLEAR PTM release 20, BSL/ eleven' contains fixes for the following problems that exist in BSL/ eleven. 1. An incorrect ICTL is generated if the SEQ option specifies a sequence number that has a non-blank in colur.nn 72. 2. The GE:NMGIN option causes the BSL compiler to abend when the difference between the right and left margins equals 70 and the left margin is not 1. 3. TRACE does not give correct information if the ANNOT.ATE =1 option is used. 4. A CALL argument of the form CONSTANT VBL * causes registers to be used improperly for the remainder of the compilation. Basic Systems Language/Programming Technology /SDD, Poughkeepsie, N. Y. IBM CONFIDENTIAL BSL BULLETrn NO. '7 - - September 19, 1969 Page 2 5. A CALL argument of the form STRrnG (CONSTANT:CONSTANT) is flagged as an error. 6. Di vision is performed incorrectly when the divisor is in register 15 from a previous statement. 7. An assE~mbly error is produced for statements of the form IF A = B(I) where A is BASED(PTR- CONST.A.NT), and B is a string. 8. More than one level of factoring in a declare statement may cause the statement to be flagged as an error. 9. Incorrect code is generated for a reference to an item in a based structure, followed by a reference to an item located by a pointer in the same structure. 10. With exactly two registers available, an as s ignn1.ent to a variable length bas ed string generates incorrect code. BSL/12 BSL/12 is scheduled to be distributed November 26, 1969. In addition to fixes for reported problems, BSL/ 12 will contain a number of new features and some: object code optimizations. The new features and optimizations will be described in a BSL Bulletin that will be distributed with BSL/