2026-09-02 11:39:26 +02:00
1 changed files with 1 additions and 24 deletions
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 ; ===== INTRODUCTION =====
 ; This is supposed to provide some standard library functionality for stock symphony.
 ; In particular its supposed to work with an unmodified ISA, that means some choices are not 
 ; optimal (RA being stored in flags for example)
 ; ===== ABI =====
 ; ----- CALLING CONVENTION -----
 ; n.a. zr
 ; preserved: sp, r8 - r12
 ; scratch: flags, r1 - r7
 ; arguments: r1 - r7 (r1 = 1st argument, r6 = 6th arg/stack args, r7 = 7th arg/stack res)
 ; result: r1, r2 (r1 = low word, r2 = high word)
 ; return address: r13
 ; ----- STACK -----
 ; grows downwards from top of memory
 ; arguments are passed in reverse order with the stack so:
 ; lowest address = 1st stack arg
 ; highest address = last stack arg
 ; ===== TYPES =====
 pub include bit
 pub include imath