feat: Parsing modifiers and directives

Support added for parsing a limited set of directives and for all access
modifiers.

1 files changed, 37 insertions, 0 deletions

diff --git a/examples/labels.s b/examples/labels.s
new file mode 100644
index 0000000..363b9e5
--- /dev/null
+++ b/examples/labels.s
@@ -0,0 +1,37 @@
+# int square(int num) {
+#     return num * num;
+# }
+#
+#
+# int main(void) {
+#     return square(2);
+# }
+
+square:
+        addi    sp,sp,-32
+        sd      ra,24(sp)
+        sd      s0,16(sp)
+        addi    s0,sp,32
+        mv      a5,a0
+        sw      a5,-20(s0)
+        lw      a5,-20(s0)
+        mulw    a5,a5,a5
+        sext.w  a5,a5
+        mv      a0,a5
+        ld      ra,24(sp)
+        ld      s0,16(sp)
+        addi    sp,sp,32
+        jr      ra
+main:
+        addi    sp,sp,-16
+        sd      ra,8(sp)
+        sd      s0,0(sp)
+        addi    s0,sp,16
+        li      a0,2
+        call    square
+        mv      a5,a0
+        mv      a0,a5
+        ld      ra,8(sp)
+        ld      s0,0(sp)
+        addi    sp,sp,16
+        jr      ra