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Implemented more arm64 instructions

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This commit is contained in:
Eduard Urbach 2025-03-06 23:13:14 +01:00
parent 1832d2c73b
commit 014f161633
Signed by: eduard
GPG key ID: 49226B848C78F6C8
26 changed files with 232 additions and 73 deletions
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4
src/x86/Load.go
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@ -3,6 +3,6 @@ package x86
import "git.urbach.dev/cli/q/src/cpu"
// LoadRegister loads from memory into a register.
func LoadRegister(code []byte, destination cpu.Register, offset int8, length byte, source cpu.Register) []byte {
return memoryAccess(code, 0x8A, 0x8B, source, offset, length, destination)
func LoadRegister(code []byte, destination cpu.Register, base cpu.Register, offset int8, length byte) []byte {
return memoryAccess(code, 0x8A, 0x8B, base, offset, length, destination)
}

4
src/x86/LoadDynamic.go
View file

@ -3,6 +3,6 @@ package x86
import "git.urbach.dev/cli/q/src/cpu"
// LoadDynamicRegister loads from memory with a register offset into a register.
func LoadDynamicRegister(code []byte, destination cpu.Register, offset cpu.Register, length byte, source cpu.Register) []byte {
return memoryAccessDynamic(code, 0x8A, 0x8B, source, offset, length, destination)
func LoadDynamicRegister(code []byte, destination cpu.Register, base cpu.Register, offset cpu.Register, length byte) []byte {
return memoryAccessDynamic(code, 0x8A, 0x8B, base, offset, length, destination)
}

6
src/x86/LoadDynamic_test.go
View file

@ -12,7 +12,7 @@ func TestLoadDynamicRegister(t *testing.T) {
usagePatterns := []struct {
Destination cpu.Register
Length byte
Source cpu.Register
Base cpu.Register
OffsetRegister cpu.Register
Code []byte
}{
@ -83,8 +83,8 @@ func TestLoadDynamicRegister(t *testing.T) {
}
for _, pattern := range usagePatterns {
t.Logf("load %dB %s, [%s+%s]", pattern.Length, pattern.Destination, pattern.Source, pattern.OffsetRegister)
code := x86.LoadDynamicRegister(nil, pattern.Destination, pattern.OffsetRegister, pattern.Length, pattern.Source)
t.Logf("load %dB %s, [%s+%s]", pattern.Length, pattern.Destination, pattern.Base, pattern.OffsetRegister)
code := x86.LoadDynamicRegister(nil, pattern.Destination, pattern.Base, pattern.OffsetRegister, pattern.Length)
assert.DeepEqual(t, code, pattern.Code)
}
}

6
src/x86/Load_test.go
View file

@ -11,7 +11,7 @@ import (
func TestLoadRegister(t *testing.T) {
usagePatterns := []struct {
Destination cpu.Register
Source cpu.Register
Base cpu.Register
Offset int8
Length byte
Code []byte
@ -150,8 +150,8 @@ func TestLoadRegister(t *testing.T) {
}
for _, pattern := range usagePatterns {
t.Logf("load %dB %s, [%s+%d]", pattern.Length, pattern.Destination, pattern.Source, pattern.Offset)
code := x86.LoadRegister(nil, pattern.Destination, pattern.Offset, pattern.Length, pattern.Source)
t.Logf("load %dB %s, [%s+%d]", pattern.Length, pattern.Destination, pattern.Base, pattern.Offset)
code := x86.LoadRegister(nil, pattern.Destination, pattern.Base, pattern.Offset, pattern.Length)
assert.DeepEqual(t, code, pattern.Code)
}
}

2
src/x86/Move.go
View file

@ -54,7 +54,7 @@ func MoveRegisterNumber32(code []byte, destination cpu.Register, number int) []b
return binary.LittleEndian.AppendUint32(code, uint32(number))
}
// MoveRegisterRegister moves a register value into another register.
// MoveRegisterRegister copies a register to another register.
func MoveRegisterRegister(code []byte, destination cpu.Register, source cpu.Register) []byte {
return encode(code, AddressDirect, source, destination, 8, 0x89)
}