Merge pull request #629 from wt/update_asm_toolchain

Remove asm toolchain

Author: jonathanpallant

Cargo.toml

@@ -2,6 +2,7 @@
 resolver = "3"
 members = [
     "cortex-m",
+    "cortex-m/macros",
     "cortex-m-types",
     "cortex-m-rt",
     "cortex-m-semihosting",

cortex-m/Cargo.toml

@@ -19,6 +19,7 @@ volatile-register = "0.2.2"
 bitfield = "0.13.2"
 eh0 = { package = "embedded-hal", version = "0.2.4" }
 eh1 = { package = "embedded-hal", version = "1.0.0" }
+cortex-m-macros = { path = "macros", version = "=0.1.0" }
 
 [dependencies.serde]
 version = "1"