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