param-regs ( abi -- regs )
CPU architecture description model

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Vocabulary
cpu.architecture

Inputs

abi	a calling convention symbol

Outputs

regs

an assoc

Word description
Retrieves the order in which machine registers are used for parameters for the given calling convention.

Definition

USING: system ;

IN: cpu.architecture

HOOK: param-regs cpu ( abi -- regs )

Methods

USING: cpu.architecture cpu.arm.64.assembler kernel system ;

M: arm.64 param-regs
    drop {
        { int-regs { X0 X1 X2 X3 X4 X5 X6 X7 X8 } }
        { float-regs { V0 V1 V2 V3 V4 V5 V6 V7 } }
    } ;


USING: cpu.architecture cpu.x86.assembler.operands kernel system
;

M: x86.64 param-regs
    drop {
        { int-regs { RDI RSI RDX RCX R8 R9 } }
        {
            float-regs
            { XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 }
        }
    } ;