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remove syscall() builtin functions

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vm code can do this via inline assembly
This commit is contained in:
Irmen de Jong
2022-05-01 00:09:03 +02:00
parent 0ee790969d
commit b32641db87
10 changed files with 177 additions and 198 deletions
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codeGenVirtual/src/prog8/codegen/virtual/BuiltinFuncGen.kt
-60
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@@ -5,7 +5,6 @@ import prog8.code.ast.*
import prog8.code.core.ArrayToElementTypes
import prog8.code.core.AssemblyError
import prog8.code.core.DataType
import prog8.code.core.WordDatatypes
import prog8.vm.Opcode
import prog8.vm.Syscall
import prog8.vm.VmDataType
@@ -32,11 +31,6 @@ internal class BuiltinFuncGen(private val codeGen: CodeGen, private val exprGen:
"rndw" -> funcRndw(resultRegister)
"callfar" -> throw AssemblyError("callfar() is for cx16 target only")
"callrom" -> throw AssemblyError("callrom() is for cx16 target only")
"syscall" -> funcSyscall(call)
"syscall1" -> funcSyscall1(call)
"syscall2" -> funcSyscall2(call)
"syscall3" -> funcSyscall3(call)
"syscall1fp" -> funcSyscall1fp(call)
"msb" -> funcMsb(call, resultRegister)
"lsb" -> funcLsb(call, resultRegister)
"memory" -> funcMemory(call, resultRegister)
@@ -350,60 +344,6 @@ internal class BuiltinFuncGen(private val codeGen: CodeGen, private val exprGen:
return code
}
private fun funcSyscall(call: PtBuiltinFunctionCall): VmCodeChunk {
val code = VmCodeChunk()
val vExpr = call.args.single() as PtNumber
code += VmCodeInstruction(Opcode.SYSCALL, value=vExpr.number.toInt())
return code
}
private fun funcSyscall1(call: PtBuiltinFunctionCall): VmCodeChunk {
val code = VmCodeChunk()
val callNr = (call.args[0] as PtNumber).number.toInt()
code += exprGen.translateExpression(call.args[1], 0, -1)
code += VmCodeInstruction(Opcode.SYSCALL, value=callNr)
return code
}
private fun funcSyscall1fp(call: PtBuiltinFunctionCall): VmCodeChunk {
val code = VmCodeChunk()
val callNr = (call.args[0] as PtNumber).number.toInt()
code += exprGen.translateExpression(call.args[1], -1, 0)
code += VmCodeInstruction(Opcode.SYSCALL, value=callNr)
return code
}
private fun funcSyscall2(call: PtBuiltinFunctionCall): VmCodeChunk {
val code = VmCodeChunk()
code += VmCodeInstruction(Opcode.PUSH, VmDataType.WORD, reg1 = 1)
while(codeGen.vmRegisters.peekNext()<2) {
codeGen.vmRegisters.nextFree()
}
val callNr = (call.args[0] as PtNumber).number.toInt()
code += exprGen.translateExpression(call.args[1], 0, -1)
code += exprGen.translateExpression(call.args[2], 1, -1)
code += VmCodeInstruction(Opcode.SYSCALL, value=callNr)
code += VmCodeInstruction(Opcode.POP, VmDataType.WORD, reg1 = 1)
return code
}
private fun funcSyscall3(call: PtBuiltinFunctionCall): VmCodeChunk {
val code = VmCodeChunk()
code += VmCodeInstruction(Opcode.PUSH, VmDataType.WORD, reg1 = 1)
code += VmCodeInstruction(Opcode.PUSH, VmDataType.WORD, reg1 = 2)
while(codeGen.vmRegisters.peekNext()<3) {
codeGen.vmRegisters.nextFree()
}
val callNr = (call.args[0] as PtNumber).number.toInt()
code += exprGen.translateExpression(call.args[1], 0, -1)
code += exprGen.translateExpression(call.args[2], 1, -1)
code += exprGen.translateExpression(call.args[3], 2, -1)
code += VmCodeInstruction(Opcode.SYSCALL, value=callNr)
code += VmCodeInstruction(Opcode.POP, VmDataType.WORD, reg1 = 2)
code += VmCodeInstruction(Opcode.POP, VmDataType.WORD, reg1 = 1)
return code
}
private fun funcRolRor2(opcode: Opcode, call: PtBuiltinFunctionCall, resultRegister: Int): VmCodeChunk {
val vmDt = codeGen.vmType(call.args[0].type)
val code = VmCodeChunk()