[Ohrrpgce] SVN: james/12844 Use slice clamping to keep targetting cursor slices on the screen

[subversion at HamsterRepublic.com]

james
2022-03-02 20:25:02 -0800 (Wed, 02 Mar 2022)
150
Use slice clamping to keep targetting cursor slices on the screen
(Not a pixel-perfect match for the old cursor clamping, but definitely close enough)
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U   wip/bmod.rbas