From 51494729997b457251a62506b87af1635cd19802 Mon Sep 17 00:00:00 2001
From: Kyle Gunger <kgunger12@gmail.com>
Date: Sun, 9 Oct 2022 15:15:39 -0400
Subject: Basic asm helpers

---
 CONTRIBUTING.md            |  5 ++++
 tnslc/compile/compile.tnsl | 28 +++++--------------
 tnslc/compile/isa_x86.tnsl | 67 +++++++++++++++++++++++++++++-----------------
 tnslc/dummy.tnsl           | 21 ++++-----------
 tnslc/tnslc.tnsl           |  1 +
 5 files changed, 60 insertions(+), 62 deletions(-)
 create mode 100644 CONTRIBUTING.md

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..115dac1
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,5 @@
+To contribute to this repository, the following terms must be met:
+
+- The contributing party must have enough rights to the code they are providing to make said code available under the license
+- The contributing party agrees to allow their contributed code to be governed by the license in this repository
+- The contributing party agrees to field any legal issues from their contribution, and give other contributers indemnity
diff --git a/tnslc/compile/compile.tnsl b/tnslc/compile/compile.tnsl
index 520ea1f..7d8f012 100644
--- a/tnslc/compile/compile.tnsl
+++ b/tnslc/compile/compile.tnsl
@@ -14,13 +14,6 @@
 	EXPRESS OR IMPLIED
 #/
 
-/; module compile
-
-	# :include "compile/arch/arch.tnsl"
-	# :include "compile/comp.tnsl"
-;/
-
-:include "isa_x86.tnsl"
 
 ;{}{}charp COMMON_ASM = {
 	"\tret",
@@ -88,18 +81,6 @@
 	;/
 ;/
 
-/; header_guard (~VTrack tab, ~{}charp csec)
-
-;/
-
-/; ret_guard (~VTrack tab, {}charp to_ret, ~{}charp csec)
-	;tail_guard(csec)
-
-;/
-
-/; tail_guard (~{}charp csec)
-;/
-
 /; compile_statement (~int cur, ~{}Token data, ~{}charp hsec, csec, dsec)
 	;cur`++
 	/; if (cur` < len data`)
@@ -115,8 +96,8 @@
 
 /; compile_block (~int cur, ~{}Token data, ~{}charp hsec, csec, dsec)
 	;VTrack tab = {
-		{"", "", "", "", "", "", "", ""},
-		{NT, NT, NT, NT, NT, NT, NT, NT}
+		{},
+		{}
 	}
 
 	;{}charp name = {}
@@ -182,7 +163,7 @@
 	;{}charp dsec = ".data\n"
 
 	;int j = len data`
-
+	/#
 	/; loop (int i = 0; i < j) [i++]
 		/; if (string_equate(data`{i}.data`, "/;"))
 			;compile_block(~i, data, ~hsec, ~csec, ~dsec)
@@ -192,6 +173,9 @@
 			;break
 		;/
 	;/
+	#/
+	;{}charp tmp = add_asm("%eax", "%edx")
+	;add_strings(~csec, ~tmp)
 
 	;tnsl.io.File out = tnsl.io.writeFile(file)
 	
diff --git a/tnslc/compile/isa_x86.tnsl b/tnslc/compile/isa_x86.tnsl
index 1dff3f7..0ab8910 100644
--- a/tnslc/compile/isa_x86.tnsl
+++ b/tnslc/compile/isa_x86.tnsl
@@ -14,18 +14,52 @@
 	EXPRESS OR IMPLIED
 #/
 
-/; push_asm ({}charp reg) [{}charp]
-	;{}charp out = "\tpush "
-	;add_strings(~out, ~reg)
-	;out.append('\n')
+/; construct_statement({}charp base, {}{}charp args) [{}charp]
+	/; loop (int i = 0; i < len args) [i++]
+		;add_strings(~base, ~(args{i}))
+		/; if (i < len args - 1)
+			;base.append(',')
+			;base.append(' ')
+		;/
+	;/
+	;base.append('\n')
+	;return base
+;/
+
+/; literal_num ({}charp num) [{}charp]
+	;{}charp out = "$"
+	;add_strings(~out, ~num)
 	;return out
 ;/
 
+/; add_asm ({}charp from, to) [{}charp]
+	;return construct_statement("\tadd ", {from, to})
+;/
+
+/; sub_asm({}charp from, to) [{}charp]
+	;return construct_statement("\tsub ", {from, to})
+;/
+
+/; push_asm ({}charp reg) [{}charp]
+	;return construct_statement("\tpush ", {reg})
+;/
+
 /; pop_asm ({}charp reg) [{}charp]
-	;{}charp out = "\tpop "
-	;add_strings(~out, ~reg)
-	;out.append('\n')
-	;return out
+	;return construct_statement("\tpop ", {reg})
+;/
+
+/; cmp_asm ({}charp a, b) [{}charp]
+	;return construct_statement("\tcmp ", {a, b})
+;/
+
+/; jmp_asm ({}charp pos) [{}charp]
+	;return construct_statement("\tjmp ", {pos})
+;/
+
+/; mem_offset ({}charp pos, offset, scale) [{}charp]
+	;{}charp tmp = construct_statement("(", {pos, offset, scale})
+	;tmp{len tmp - 1} = ')'
+	;return tmp
 ;/
 
 /; header_guard [{}charp]
@@ -87,7 +121,7 @@
 	/; if (string_equate(common, "ax") || string_equate(common, "bx") || string_equate(common, "cx") || string_equate(common, "dx"))
 
 		/; if (size == 1)
-			common{1} = 'l'
+			;common{1} = 'l'
 		;; else if (size == 4)
 			;out.append('e')
 		;; else if (size == 8)
@@ -124,18 +158,3 @@
 
 	;return out
 ;/
-
-/; literal_num ({}charp num) [{}charp]
-	;{}charp out = "$"
-	;add_strings(~out, ~num)
-	;return out
-;/
-
-/; add_asm ({}charp from, to) [{}charp]
-	;{}charp out = "\tadd "
-	;add_strings(~out, ~from)
-	;out.append(',')
-	;out.append(' ')
-	;add_strings(~out, ~to)
-	;
-;/
\ No newline at end of file
diff --git a/tnslc/dummy.tnsl b/tnslc/dummy.tnsl
index 003e428..60fe913 100644
--- a/tnslc/dummy.tnsl
+++ b/tnslc/dummy.tnsl
@@ -1,28 +1,17 @@
-/; raw _alloc
+/; _alloc (uint bytes) [~void]
     ;asm "mov %rax, %rdi"
-    ;asm "push %r8"
-    ;asm "push %r9"
-    ;asm "push %r10"
     ;asm "mov $0, %r10"
     ;asm "call malloc"
-    ;asm "pop %r10"
-    ;asm "pop %r9"
-    ;asm "pop %r8"
 ;/
 
-/; raw _delete
+/; _delete (~void ptr)
     ;asm "mov %rax, %rdi"
-    ;asm "push %r9"
-    ;asm "push %r10"
     ;asm "mov $0, %r10"
     ;asm "call free"
-    ;asm "pop %r10"
-    ;asm "pop %r9"
 ;/
 
 /; main [int]
-    ;asm "mov $10, %rax"
-    ;asm "call _alloc"
-    ;asm "call _delete"
-    ;asm "mov $0, %rax"
+    ;~void ptr = _alloc(10)
+    ;_delete(ptr)
+    ;return 0
 ;/
diff --git a/tnslc/tnslc.tnsl b/tnslc/tnslc.tnsl
index 7aad7b5..b8cfb92 100644
--- a/tnslc/tnslc.tnsl
+++ b/tnslc/tnslc.tnsl
@@ -19,6 +19,7 @@
 /; export module tnslc
 	:include "parse/parse.tnsl"
 	:include "compile/compile.tnsl"
+	:include "compile/isa_x86.tnsl"
 ;/
 
 
-- 
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