5 files changed, 16 insertions, 0 deletions
diff --git a/src/arm32/address/mod.rs b/src/arm32/address/mod.rs
index fa3488c..067cc20 100644
--- a/src/arm32/address/mod.rs
+++ b/src/arm32/address/mod.rs
@@ -23,6 +23,7 @@ use crate::arm32::Register;
 
 use core::fmt::Display;
 
+/// An addressing mode.
 pub enum Address {
 ArithmeticShiftRightImmediate { source: Register, shift: u32 },
 
diff --git a/src/arm32/condition/mod.rs b/src/arm32/condition/mod.rs
index 5d595f9..f8d81ba 100644
--- a/src/arm32/condition/mod.rs
+++ b/src/arm32/condition/mod.rs
@@ -21,6 +21,12 @@
 
 use core::fmt::Display;
 
+/// A condition code.
+///
+/// Most Arm32 instructions embed a condition code.
+///
+/// Any 4-bit values is always a valid condition code *except* `0b1111`, which sometimes denotes a different instruction altogether
+/// In most cases, it is invalid, however..
 #[derive(Clone, Copy, Eq, Ord, PartialEq, PartialOrd)]
 #[repr(u8)]
 pub enum Condition {
diff --git a/src/arm32/instruction/mod.rs b/src/arm32/instruction/mod.rs
index d10aa6d..1e1971d 100644
--- a/src/arm32/instruction/mod.rs
+++ b/src/arm32/instruction/mod.rs
@@ -26,6 +26,7 @@ mod display;
 
 use crate::arm32::Condition;
 
+/// An Arm32 instruction.
 pub enum Instruction {
 Branch { condition: Condition, immediate: i32 },
 
diff --git a/src/arm32/mod.rs b/src/arm32/mod.rs
index 6727a9c..e73980a 100644
--- a/src/arm32/mod.rs
+++ b/src/arm32/mod.rs
@@ -19,6 +19,10 @@
 // fero General Public License along with Pollex.
 // If not, see <https://www.gnu.org/licenses/>.
 
+//! Arm32-related facilities.
+//!
+//! This includes T variants of Arm32.
+
 use crate::use_mod;
 use_mod!(pub address);
 use_mod!(pub condition);
diff --git a/src/arm32/register/mod.rs b/src/arm32/register/mod.rs
index bd8ba0d..366ab16 100644
--- a/src/arm32/register/mod.rs
+++ b/src/arm32/register/mod.rs
@@ -21,6 +21,10 @@
 
 use core::fmt::Display;
 
+/// An Arm register.
+///
+/// Registers are number `R<N>`, where *N* denotes a decimal number from (0) to (15).
+/// Some registers have aliases, such as `r15|pc`.
 #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
 #[repr(u8)]
 pub enum Register {