int 0x80 was/is the x86_32 way of doing syscalls in linux. im not sure if sysenter, used on 64bit systems is classed as an interrupt. the sdk is just a layer

int 0x80 was/is the x86_32 way of doing syscalls in linux. im not sure if sysenter, used on 64bit systems is classed as an interrupt. the sdk is just a layer on top of that. ive never used c on dos, it woukdnt surprise me if they used a similar library to linux. theres certainly nothing preventing it.