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Reviewing. Successfuly reworked register allocation for tape runs.

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ed
2026-08-18 00:26:36 -04:00
parent 5a4bfb1224
commit da007d342e
19 changed files with 841 additions and 1787 deletions
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code/duffle/memory.h
+4 -2
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@@ -134,10 +134,12 @@ FI_ U4 farena_unused_start(FArena arena) { return arena.start + arena.used; }
#pragma region BIOS Scratchpad
/* BIOS scratchpad location. 1 KB at 0x1F800000.
* The PS1 BIOS A-functions use this region for inter-call communication and as a temp storage area.
* The Tape runtime uses scratch region along with explicit data structures instead of the stack-based scratch from the C-Runtime. */
* TapeHostFrame occupies the final 44 bytes while tape code executes.
* Atom scratch is bounded by the TapeHostFrame_Loc declaration in lottes_tape.h. */
enum {
Scratchpad_Loc = 0x1F800000,
Scratchpad_Len = 0x400, /* 1 KB */
Scratchpad_End = Scratchpad_Loc + Scratchpad_Len, /* 0x1F800400 */
};
#define C_scratch(type) C_(type, Scratchpad_Loc)
#pragma endregion BIOS Scratchpad