diff options
Diffstat (limited to 'src/arm32/register')
| -rw-r--r-- | src/arm32/register/mod.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/arm32/register/mod.rs b/src/arm32/register/mod.rs index 366ab16..2df521b 100644 --- a/src/arm32/register/mod.rs +++ b/src/arm32/register/mod.rs @@ -1,4 +1,4 @@ -// Copyright 2021-2024 Gabriel Bjørnager Jensen. +// Copyright 2024 Gabriel Bjørnager Jensen. // // This file is part of Pollex. // @@ -23,8 +23,9 @@ 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`. +/// Some opcodes can only encode specific registers. +/// For example, many Thumb instructions only accept registers from `r0` to `r7` (the so-called *low* registers). +/// Other opcodes only encode a single register (which is then inferred from the opcode in question). #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)] #[repr(u8)] pub enum Register { |