This commit is contained in:
2026-06-17 00:53:26 -04:00
parent 026aec8565
commit 4fe4b50c8b
3 changed files with 28 additions and 28 deletions
+11 -11
View File
@@ -11,11 +11,11 @@ pub struct Code {
}
impl Code {
pub fn mov(&mut self, dst: impl RegMem, src: impl Into<RegImmMem>) -> ERes {
pub fn mov(&mut self, dst: impl RegMem, src: impl Into<RegMemImm>) -> ERes {
let src = src.into();
match dst.kind() {
RegMemKind::Reg(mut dst) => match src {
RegImmMem::Reg(src) => {
RegMemImm::Reg(src) => {
if dst.width() != src.width() {
return Err("src and dst are not same width".into());
}
@@ -27,7 +27,7 @@ impl Code {
self.bytes.push(0x88 | dst.not8());
self.modrm(src, dst);
}
RegImmMem::Imm(src) => {
RegMemImm::Imm(src) => {
let src_width = src.width_unsigned()?;
if src_width > dst.width() {
return Err("immediate cannot fit in register".into());
@@ -47,7 +47,7 @@ impl Code {
self.imm(src, dst.width());
}
}
RegImmMem::Mem(src) => {
RegMemImm::Mem(src) => {
if src.width != dst.width() {
return Err("register & memory sizes don't match".into());
}
@@ -62,7 +62,7 @@ impl Code {
}
},
RegMemKind::Mem(dst) => match src {
RegImmMem::Reg(src) => {
RegMemImm::Reg(src) => {
if src.width() != dst.width {
return Err("register & memory sizes don't match".into());
}
@@ -75,7 +75,7 @@ impl Code {
self.bytes.push(0x88 | src.not8());
self.modrm(src, dst);
}
RegImmMem::Imm(src) => {
RegMemImm::Imm(src) => {
let encode_width = dst.width.min(Width::B32);
let src_width = if dst.width == Width::B64 {
src.width_signed()
@@ -95,15 +95,15 @@ impl Code {
self.modrm(0, dst);
self.imm(src, encode_width);
}
RegImmMem::Mem(_) => return Err("cannot move memory to memory".into()),
RegMemImm::Mem(_) => return Err("cannot move memory to memory".into()),
},
}
Ok(())
}
pub fn push(&mut self, reg: impl Into<RegImmMem>) -> ERes {
pub fn push(&mut self, reg: impl Into<RegMemImm>) -> ERes {
match reg.into() {
RegImmMem::Reg(reg) => match reg.width() {
RegMemImm::Reg(reg) => match reg.width() {
Width::B64 => {
if reg.gt8() {
self.bytes.push(0x41);
@@ -113,7 +113,7 @@ impl Code {
Width::B16 => todo!(),
_ => return Err("register must be 64 or 16 bit".into()),
},
RegImmMem::Imm(imm) => match imm.width_unsigned()? {
RegMemImm::Imm(imm) => match imm.width_unsigned()? {
Width::B8 => {
self.bytes.push(0x6a);
self.bytes.push(imm.0 as u8);
@@ -124,7 +124,7 @@ impl Code {
}
Width::B64 => return Err("immediate must be 32 bit or less".into()),
},
RegImmMem::Mem(mem) => todo!(),
RegMemImm::Mem(mem) => todo!(),
}
Ok(())
}