[Nextor 3] Fix "map to device sector 0" option in CALL MAPDRV

[Konamiman]

"Backport" of #151

Part of #164

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

A control flow modification in the partition mapping driver adjusts the jump target for primary partition handling in MAPDRV_GETCUR, inserting an intermediate label MAPDRV_GOT_PAR_SEC to route execution through a new two-step path before the mapping logic executes.

Changes

Cohort / File(s)	Summary
Partition mapping control flow source/kernel/bank4/partit.mac	Modified MAPDRV_GETCUR jump target from MAPDRV_GOTPAR to MAPDRV_GOT_PAR_SEC; added new intermediate label prior to mapping section for partition sector handling

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• #175 — Modifies BC save/restore behavior around MAPDRV/UNMAPALL calls in the same file
• #174 — Adjusts MAPDRV mapping paths and control flow in partit.mac, affecting the same code sections

Poem

🐰 A hop through the partition's maze,
With new labels lighting the way,
Two steps instead of one direct blaze,
The mapping driver saves the day!
Control flow clean, the sectors align,
This tiny tweak makes it just fine! 🎯

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