Huge work; i'm too tired to write commit message for all of it. Pleez let me sleep acouple of hours. Made most tests work. Started SBC.

asm/hw.asm

@@ -0,0 +1,16 @@
+bits 64
+
+;section	.rodata
+hw: db "hw", 0
+
+.text
+global _start
+extern puts
+_start:
+	push	rbp
+	mov	rbp, rsp
+	lea	rdi, [hw+rip]
+	call	puts
+	mov	rax, 0
+	pop	rbp
+	ret

asm/hw.c

@@ -0,0 +1 @@
+main() {puts("hw");}