z390development

z390development/z390

z390 Portable Mainframe Assembler and Emulator Project

4 good first / help-wanted issues · Java · last activity Oct 14, 2026

78 stars 27 forks 78 watchers Java GNU General Public License v2.0

4 Open Issues Need Help Last updated: Oct 14, 2026

Open Issues Need Help

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ivp procedure is too rigid in handling the version number about 3 hours ago

help wanted question component-build

z390development/z390

78

z390 Portable Mainframe Assembler and Emulator Project

Java

ESTAE S0C1 on Exit from Program 9 months ago

help wanted question component-core

z390development/z390

78

z390 Portable Mainframe Assembler and Emulator Project

Java

Assembly of KM/KMA/KMC fails to flag invalid register operands 12 months ago

bug good first issue component-core Lang:Java

z390development/z390

78

z390 Portable Mainframe Assembler and Emulator Project

Java

Improve code for defining architecture levels over 1 year ago

AI Summary: Refactor the z390 project to replace the current constant-based definition of architecture levels with an enum, as per the details in the closed PR 644. This involves modifying the `tz390` component to improve code readability and maintainability.

Complexity: 2/5

good first issue component-core Lang:Java

z390development/z390

78

z390 Portable Mainframe Assembler and Emulator Project

Java