爱特每羊队
110 lines
4.1 KiB
Rust
110 lines
4.1 KiB
Rust
use crate::vm::Vm;
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use oxide_types::value::JsValue;
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impl Vm {
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#[inline(always)]
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fn write_ushr_result(&mut self, rd: usize, result: u32) {
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if result <= i32::MAX as u32 {
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self.regs[rd] = JsValue::int(result as i32);
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} else {
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self.regs[rd] = JsValue::float(result as f64);
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}
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}
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#[inline(always)]
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pub(crate) fn dispatch_bit_and(&mut self, rd: usize, a: usize, b: usize) -> Result<(), String> {
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self.regs[rd] =
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JsValue::int(self.coerce_int32_bounded(self.regs[a])? & self.coerce_int32_bounded(self.regs[b])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_bit_or(&mut self, rd: usize, a: usize, b: usize) -> Result<(), String> {
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self.regs[rd] =
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JsValue::int(self.coerce_int32_bounded(self.regs[a])? | self.coerce_int32_bounded(self.regs[b])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_bit_xor(&mut self, rd: usize, a: usize, b: usize) -> Result<(), String> {
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self.regs[rd] =
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JsValue::int(self.coerce_int32_bounded(self.regs[a])? ^ self.coerce_int32_bounded(self.regs[b])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_shl(&mut self, rd: usize, a: usize, b: usize) -> Result<(), String> {
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let lhs = self.coerce_int32_bounded(self.regs[a])?;
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let shift = self.coerce_uint32_bounded(self.regs[b])? & 0x1F;
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self.regs[rd] = JsValue::int(lhs.wrapping_shl(shift));
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_shr(&mut self, rd: usize, a: usize, b: usize) -> Result<(), String> {
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let lhs = self.coerce_int32_bounded(self.regs[a])?;
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let shift = self.coerce_uint32_bounded(self.regs[b])? & 0x1F;
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self.regs[rd] = JsValue::int(lhs >> shift);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_ushr(&mut self, rd: usize, a: usize, b: usize) -> Result<(), String> {
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let lhs = self.coerce_uint32_bounded(self.regs[a])?;
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let shift = self.coerce_uint32_bounded(self.regs[b])? & 0x1F;
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self.write_ushr_result(rd, lhs >> shift);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_bit_not(&mut self, rd: usize, a: usize) -> Result<(), String> {
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self.regs[rd] = JsValue::int(!self.coerce_int32_bounded(self.regs[a])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_compound_bit_and(&mut self, rd: usize, a: usize) -> Result<(), String> {
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self.regs[rd] =
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JsValue::int(self.coerce_int32_bounded(self.regs[rd])? & self.coerce_int32_bounded(self.regs[a])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_compound_bit_or(&mut self, rd: usize, a: usize) -> Result<(), String> {
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self.regs[rd] =
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JsValue::int(self.coerce_int32_bounded(self.regs[rd])? | self.coerce_int32_bounded(self.regs[a])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_compound_bit_xor(&mut self, rd: usize, a: usize) -> Result<(), String> {
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self.regs[rd] =
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JsValue::int(self.coerce_int32_bounded(self.regs[rd])? ^ self.coerce_int32_bounded(self.regs[a])?);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_compound_shl(&mut self, rd: usize, a: usize) -> Result<(), String> {
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let lhs = self.coerce_int32_bounded(self.regs[rd])?;
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let shift = self.coerce_uint32_bounded(self.regs[a])? & 0x1F;
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self.regs[rd] = JsValue::int(lhs.wrapping_shl(shift));
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_compound_shr(&mut self, rd: usize, a: usize) -> Result<(), String> {
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let lhs = self.coerce_int32_bounded(self.regs[rd])?;
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let shift = self.coerce_uint32_bounded(self.regs[a])? & 0x1F;
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self.regs[rd] = JsValue::int(lhs >> shift);
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Ok(())
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}
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#[inline(always)]
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pub(crate) fn dispatch_compound_ushr(&mut self, rd: usize, a: usize) -> Result<(), String> {
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let lhs = self.coerce_uint32_bounded(self.regs[rd])?;
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let shift = self.coerce_uint32_bounded(self.regs[a])? & 0x1F;
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self.write_ushr_result(rd, lhs >> shift);
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Ok(())
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}
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}
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