alloc-stack-param ( rep size -- n )

Vocabulary

compiler.cfg.builder.alien.params

Inputs

rep	a representation
size	an integer

Outputs

n	an integer

Word description

Allocates space for a stack parameter value of the given representation and natural byte size, and returns the previous stack parameter offset.

Examples

On 32-bit architectures, the offsets will be aligned to four byte boundaries.

0 stack-params set float-rep 8 alloc-stack-param stack-params get . . 4
0

Definition

IN: compiler.cfg.builder.alien.params

GENERIC#: alloc-stack-param 1 ( rep size -- n )

Methods

USING: compiler.cfg.builder.alien.params cpu.architecture kernel
layouts math namespaces ;

M:: float-rep alloc-stack-param ( rep size -- n )
    compact-stack-params? get
    [ stack-params get size align dup size + stack-params set ] 
    [
        stack-params get rep rep-size
        [ cell align stack-params +@ ] keep
        float-right-align-on-stack? [ + ] [ drop ] if
    ] if ;


USING: compiler.cfg.builder.alien.params cpu.architecture kernel
layouts math namespaces ;

M:: object alloc-stack-param ( rep size -- n )
    compact-stack-params? get
    [ stack-params get size align dup size + stack-params set ] 
    [
        stack-params get dup rep rep-size cell align +
        stack-params set
    ] if ;