phoebewang wrote: And you cannot use ESI when it's used to pass arguments. Suggested registers: | Arity Indicator | Description | Encoding in reg field | | --------------- | --------------- | --------------- | | 0 | 0 parameters | EDI | | 1 | 1 parameter in RDI | ESI | | 2 | 2 parameters in RDI and RSI | EDX | | 3 | 3 parameters in RDI, RSI, and RDX | ECX | | 4 | 4 parameters in RDI, RSI, RDX, and RCX | R8D | | 5 | 5 parameters in RDI, RSI, RDX, RCX, and R8 | R9D | | 6 | 6 parameters in RDI, RSI, RDX, RCX, R8, and R9 | R10D | | 7 | At least one parameter may be passed on the stack | EAX |
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