diff --git a/asm/assembler/block.c b/asm/assembler/block.c
index e69de29..df96b86 100644
--- a/asm/assembler/block.c
+++ b/asm/assembler/block.c
@@ -0,0 +1,46 @@
+#include "assembler.h"
+
+#include <blue/core/hash.h>
+#include <blue/object/dict.h>
+#include <blue/object/number.h>
+#include <blue/object/string.h>
+#include <ivy/asm/bin.h>
+#include <ivy/ident.h>
+#include <ivy/selector.h>
+#include <stdlib.h>
+#include <string.h>
+
+struct block_assembler_scope {
+	struct assembler_scope s_base;
+};
+
+static enum ivy_status init_scope(
+	struct ivy_assembler *as, struct assembler_scope *scope,
+	const ivy_assembler_attrib_table attrib)
+{
+	struct ivy_bin_block header = {0};
+
+	header.b_index = b_i32_htob((uint32_t)attrib[IVY_ASM_ATTRIB_INDEX]);
+	assembler_write_data(as, &header, sizeof header);
+
+	struct block_assembler_scope *c
+		= (struct block_assembler_scope *)scope;
+
+	return IVY_OK;
+}
+
+static enum ivy_status put_instr(
+	struct ivy_assembler *as, struct assembler_scope *scope,
+	const struct ivy_instr *instr)
+{
+	uint32_t op = 0xAABBCCDD;
+	b_i32 x = b_i32_htob(op);
+	assembler_write_data(as, &x, sizeof x);
+	return IVY_OK;
+}
+
+const struct assembler_scope_type block_scope_type = {
+	.s_scope_size = sizeof(struct block_assembler_scope),
+	.s_init_scope = init_scope,
+	.s_put_instr = put_instr,
+};
diff --git a/asm/include/ivy/asm/bin.h b/asm/include/ivy/asm/bin.h
index 5ca11fa..136916b 100644
--- a/asm/include/ivy/asm/bin.h
+++ b/asm/include/ivy/asm/bin.h
@@ -67,6 +67,7 @@ struct ivy_bin_class_table_entry {
 
 struct ivy_bin_class {
 	b_i32 c_ident;
+	uint8_t c_reserved[12];
 	struct ivy_bin_class_table_entry c_table[];
 };
 
diff --git a/asm/parse/block.c b/asm/parse/block.c
index 525408b..4e2589b 100644
--- a/asm/parse/block.c
+++ b/asm/parse/block.c
@@ -6,6 +6,7 @@
 #include <ivy/asm/bin.h>
 #include <ivy/ident.h>
 #include <ivy/selector.h>
+#include <ivy/asm/instr.h>
 #include <stdlib.h>
 
 #define HASH_SELF         0x2d19e518d40792b7
@@ -154,8 +155,10 @@ static enum index_base get_index_base(struct ivy_asm_token *tok)
 	}
 }
 
-static enum ivy_status write_instruction(struct block_parser_state *state)
+static enum ivy_status write_instruction(struct ivy_asm_parser *p, struct block_parser_state *state)
 {
+	struct ivy_instr instr = {0};
+	ivy_assembler_put_instr(p->p_assembler, &instr);
 	return IVY_OK;
 }
 
@@ -234,7 +237,7 @@ static enum ivy_status push_reg_arg(
 static enum ivy_status parse_linefeed(
 	struct ivy_asm_parser *ctx, struct ivy_asm_token *tok)
 {
-	struct block_parser_state *state
+	struct block_parser_state *state 
 		= (struct block_parser_state *)asm_parser_get_state(ctx);
 
 	switch (state->s_prev_component) {
@@ -244,7 +247,7 @@ static enum ivy_status parse_linefeed(
 	case INSTR_OPERAND:
 	case INSTR_OPERAND_INDEX_RIGHT:
 		state->s_prev_component = INSTR_NONE;
-		return write_instruction(state);
+		return write_instruction(ctx, state);
 	default:
 		return IVY_ERR_BAD_SYNTAX;
 	}