Chapter 2: Calling Convention Implementations

• "Native 64-Bit (N64) and N32 Subprogram Interface for MIPS Architectures" covers the 64-bit subprogram interface. This interface is also used in the n32 ABI.

• "Implementation Differences" identifies differences in the 32-bit and 64-bit implementations C programming language and explains why it's easier to port to n32 rather than to 64 bits.

• "ABI Attribute Summary" lists the important attributes for the o32 and n32/64-bit ABI implementations.

Native 64-Bit (N64) and N32 Subprogram Interface for MIPS Architectures

Implementation Differences

ABI Attribute Summary