generate ( cfg -- code )


Vocabulary
compiler.codegen

Inputs and outputs
cfga cfg
codea sequence


Word description
Generates assembly code for the given cfg. The output sequence has six items with the following interpretations:
The first element is a sequence of alien function symbols and dlls used by the cfg interleaved. That is, the parameter-table.
The second item is the literal-table.
The third item is the relocation table as a byte-array.
The fourth item is the label-table.
The fifth item is the generated assembly code as a byte-array. It still contains unresolved crossreferences.
The sixth item is the size of the stack frame in bytes.


Examples
A small quotation is compiled and then disassembled:
USING: compiler.cfg.debugger io prettyprint ; [ "hello\n" write ] test-regs first dup cfg set generate [ . ] [ 4 swap nth disassemble ] bi
{ { } { "hello\n" output-stream assoc-stack stream-write } B{ 6 0 0 242 24 0 0 96 49 0 0 96 58 0 0 34 64 0 0 242 80 0 0 50 } { } B{ 137 5 0 0 0 0 72 131 236 8 73 131 198 24 72 185 0 0 0 0 0 0 0 0 73 137 78 240 73 139 77 0 72 139 73 64 73 137 14 72 185 0 0 0 0 0 0 0 0 73 137 78 248 232 0 0 0 0 137 5 0 0 0 0 72 131 196 8 72 141 29 5 0 0 0 233 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 } 16 } 0000000001cc4ca0: 890500000000 mov [rip], eax 0000000001cc4ca6: 4883ec08 sub rsp, 0x8 0000000001cc4caa: 4983c618 add r14, 0x18 0000000001cc4cae: 48b90000000000000000 mov rcx, 0x0 0000000001cc4cb8: 49894ef0 mov [r14-0x10], rcx 0000000001cc4cbc: 498b4d00 mov rcx, [r13] 0000000001cc4cc0: 488b4940 mov rcx, [rcx+0x40] 0000000001cc4cc4: 49890e mov [r14], rcx 0000000001cc4cc7: 48b90000000000000000 mov rcx, 0x0 0000000001cc4cd1: 49894ef8 mov [r14-0x8], rcx 0000000001cc4cd5: e800000000 call 0x1cc4cda 0000000001cc4cda: 890500000000 mov [rip], eax 0000000001cc4ce0: 4883c408 add rsp, 0x8 0000000001cc4ce4: 488d1d05000000 lea rbx, [rip+0x5] 0000000001cc4ceb: e900000000 jmp 0x1cc4cf0 0000000001cc4cf0: 0000 add [rax], al 0000000001cc4cf2: 0000 add [rax], al 0000000001cc4cf4: 0000 add [rax], al 0000000001cc4cf6: 0000 add [rax], al 0000000001cc4cf8: 0000 add [rax], al 0000000001cc4cfa: 0000 add [rax], al 0000000001cc4cfc: 0000 add [rax], al 0000000001cc4cfe: 0000 add [rax], al


Definition