mirror of
https://github.com/irmen/prog8.git
synced 2024-12-27 05:29:38 +00:00
more asm
This commit is contained in:
Irmen de Jong
parent
bcedb5f5e3
commit
c01114db9f
@ -5,29 +5,7 @@
|
||||
|
||||
sub start() {
|
||||
|
||||
const ubyte screen_color = 9
|
||||
const ubyte border_color = 2
|
||||
const ubyte cursor_color = 7
|
||||
|
||||
ubyte ubb
|
||||
uword uww
|
||||
byte color
|
||||
byte color2
|
||||
|
||||
AX=XY
|
||||
uww=XY
|
||||
AY=uww
|
||||
|
||||
A++
|
||||
X++
|
||||
AY++
|
||||
|
||||
A = ~X
|
||||
A = not Y
|
||||
ubb = ~ubb
|
||||
uww = ~uww
|
||||
color2 = ~color
|
||||
uww = not uww
|
||||
c64utils.init_system()
|
||||
|
||||
return
|
||||
|
||||
|
||||
@ -73,11 +73,28 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
}
|
||||
|
||||
private fun symname(scoped: String, block: IntermediateProgram.ProgramBlock): String {
|
||||
val name = if (scoped.startsWith("${block.shortname}.")) scoped.substring(block.shortname.length+1) else scoped
|
||||
val validName = name.replace("<<<", "prog8_").replace(">>>", "")
|
||||
if(validName=="-")
|
||||
if(' ' in scoped)
|
||||
return scoped
|
||||
|
||||
val blockLocal: Boolean
|
||||
var name = if (scoped.startsWith("${block.shortname}.")) {
|
||||
blockLocal = true
|
||||
scoped.substring(block.shortname.length+1)
|
||||
} else {
|
||||
blockLocal = false
|
||||
scoped
|
||||
}
|
||||
name = name.replace("<<<", "prog8_").replace(">>>", "")
|
||||
if(name=="-")
|
||||
return "-"
|
||||
return validName.replace("-", "").replace(".", "_")
|
||||
if(blockLocal)
|
||||
name = name.replace(".", "_")
|
||||
else {
|
||||
val parts = name.split(".", limit=2)
|
||||
if(parts.size>1)
|
||||
name = "${parts[0]}.${parts[1].replace(".", "_")}"
|
||||
}
|
||||
return name.replace("-", "")
|
||||
}
|
||||
|
||||
|
||||
@ -311,6 +328,12 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
out("\tdex")
|
||||
}
|
||||
|
||||
private fun pushByteY() {
|
||||
out("\ttya")
|
||||
out("\tsta ${ESTACK_LO.toHex()},x")
|
||||
out("\tdex")
|
||||
}
|
||||
|
||||
private fun replaceByteA() {
|
||||
out("\tsta ${(ESTACK_LO+1).toHex()},x")
|
||||
}
|
||||
@ -388,6 +411,12 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
out("\tlda ${ESTACK_LO.toHex()},x")
|
||||
}
|
||||
|
||||
private fun popByteY() {
|
||||
// for operations that remove a value from the stack
|
||||
out("\tinx")
|
||||
out("\tldy ${ESTACK_LO.toHex()},x")
|
||||
}
|
||||
|
||||
private fun peekByteA() {
|
||||
// for operations that modify a value on the stack
|
||||
out("\tlda ${(ESTACK_LO+1).toHex()},x")
|
||||
@ -435,8 +464,9 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
Opcode.CLC -> out("\tclc")
|
||||
Opcode.SEI -> out("\tsei")
|
||||
Opcode.CLI -> out("\tcli")
|
||||
Opcode.RETURN -> out("\trts") // todo is return really this simple?
|
||||
Opcode.JUMP -> out("\tjmp ${ins.callLabel}")
|
||||
Opcode.CALL -> out("\tjsr ${ins.callLabel}")
|
||||
Opcode.RETURN -> out("\trts") // todo is return really this simple?
|
||||
Opcode.B2UB -> {} // is a no-op, just carry on with the byte as-is
|
||||
Opcode.UB2B -> {} // is a no-op, just carry on with the byte as-is
|
||||
Opcode.RSAVE -> out("\tphp\n\tpha\n\ttxa\n\tpha\n\ttya\n\tpha")
|
||||
@ -573,8 +603,12 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
return 1 // skip 1
|
||||
}
|
||||
// byte from variable onto stack
|
||||
TODO("can be register")
|
||||
pushVarByte(ins.callLabel!!)
|
||||
when(ins.callLabel) {
|
||||
"A" -> pushByteA()
|
||||
"X" -> throw CompilerException("makes no sense to push X it's used as a stack pointer itself")
|
||||
"Y" -> pushByteY()
|
||||
else -> pushVarByte(ins.callLabel!!)
|
||||
}
|
||||
}
|
||||
Opcode.PUSH_WORD -> {
|
||||
val nextIns = block.getIns(insIdx+1)
|
||||
@ -649,8 +683,12 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
return 1 // skip 1
|
||||
}
|
||||
// word from memory onto stack
|
||||
TODO("can be register")
|
||||
pushVarWord(ins.callLabel!!)
|
||||
when(ins.callLabel) {
|
||||
"AX" -> TODO()
|
||||
"AY" -> TODO()
|
||||
"XY" -> TODO()
|
||||
else -> pushVarWord(ins.callLabel!!)
|
||||
}
|
||||
}
|
||||
Opcode.PUSH_FLOAT -> {
|
||||
val nextIns = block.getIns(insIdx+1)
|
||||
@ -702,12 +740,43 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
pushFloat(ins.arg!!.integerValue().toHex())
|
||||
}
|
||||
Opcode.INC_VAR_UB, Opcode.INC_VAR_B -> {
|
||||
TODO("can be register")
|
||||
out("\tinc ${ins.callLabel}")
|
||||
when(ins.callLabel) {
|
||||
"A" -> out("\tclc\n\tadc #1")
|
||||
"X" -> out("\tinx")
|
||||
"Y" -> out("\tiny")
|
||||
else -> out("\tinc ${ins.callLabel}")
|
||||
}
|
||||
}
|
||||
Opcode.INC_VAR_UW -> {
|
||||
when(ins.callLabel) {
|
||||
"AX" -> {
|
||||
out("\tclc\n\tadc #1")
|
||||
out("\tbne +")
|
||||
out("\tinx")
|
||||
out("+")
|
||||
}
|
||||
"AY" -> {
|
||||
out("\tclc\n\tadc #1")
|
||||
out("\tbne +")
|
||||
out("\tiny")
|
||||
out("+")
|
||||
}
|
||||
"XY" -> {
|
||||
out("\tinx")
|
||||
out("\tbne +")
|
||||
out("\tiny")
|
||||
out("+")
|
||||
}
|
||||
else -> TODO("inc_var_uw $ins")
|
||||
}
|
||||
}
|
||||
Opcode.DEC_VAR_UB, Opcode.DEC_VAR_B -> {
|
||||
TODO("can be register")
|
||||
out("\tdec ${ins.callLabel}")
|
||||
when(ins.callLabel) {
|
||||
"A" -> out("\tsec\n\tsbc #1")
|
||||
"X" -> out("\tdex")
|
||||
"Y" -> out("\tdey")
|
||||
else -> out("\tdec ${ins.callLabel}")
|
||||
}
|
||||
}
|
||||
Opcode.ADD_UB, Opcode.ADD_B -> {
|
||||
peekByte2A()
|
||||
@ -726,15 +795,50 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
out("\tsta ${ins.arg!!.integerValue().toHex()}")
|
||||
}
|
||||
Opcode.POP_VAR_BYTE -> {
|
||||
popByteA()
|
||||
TODO("can be register")
|
||||
out("\tsta ${ins.callLabel}")
|
||||
when(ins.callLabel) {
|
||||
"A" -> popByteA()
|
||||
"X" -> throw CompilerException("makes no sense to pop X it's used as a stack pointer itself")
|
||||
"Y" -> popByteY()
|
||||
else -> {
|
||||
popByteA()
|
||||
out("\tsta ${ins.callLabel}")
|
||||
}
|
||||
}
|
||||
}
|
||||
Opcode.POP_VAR_WORD -> {
|
||||
popWordAY()
|
||||
TODO("can be register")
|
||||
out("\tsta ${ins.callLabel}")
|
||||
out("\tsty ${ins.callLabel}+1")
|
||||
when(ins.callLabel) {
|
||||
"AX" -> throw CompilerException("makes no sense to pop X it's used as a stack pointer itself")
|
||||
"AY" -> TODO()
|
||||
"XY" -> throw CompilerException("makes no sense to pop X it's used as a stack pointer itself")
|
||||
else -> {
|
||||
popWordAY()
|
||||
out("\tsta ${ins.callLabel}")
|
||||
out("\tsty ${ins.callLabel}+1")
|
||||
}
|
||||
}
|
||||
}
|
||||
Opcode.DEC_VAR_UW -> {
|
||||
when(ins.callLabel) {
|
||||
"AX" -> {
|
||||
out("\tcmp #0")
|
||||
out("\tbne +")
|
||||
out("\tdex")
|
||||
out("+\tsec\n\tsbc #1")
|
||||
}
|
||||
"AY" -> {
|
||||
out("\tcmp #0")
|
||||
out("\tbne +")
|
||||
out("\tdey")
|
||||
out("+\tsec\n\tsbc #1")
|
||||
}
|
||||
"XY" -> {
|
||||
out("\ttxa")
|
||||
out("\tbne +")
|
||||
out("\tdey")
|
||||
out("+\tdex")
|
||||
}
|
||||
else -> TODO("dec_var_uw $ins")
|
||||
}
|
||||
}
|
||||
Opcode.NEG_B -> {
|
||||
peekByteA()
|
||||
@ -761,7 +865,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
out("\tlda #0")
|
||||
out("\tbeq ++")
|
||||
out("+\tlda #1")
|
||||
out("++")
|
||||
out("+")
|
||||
replaceByteA()
|
||||
}
|
||||
Opcode.NOT_WORD -> {
|
||||
@ -771,7 +875,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
out("\tlda #0")
|
||||
out("\tbeq ++")
|
||||
out("+\tlda #1")
|
||||
out("++\tsta ${(ESTACK_LO+1).toHex()},x")
|
||||
out("+\tsta ${(ESTACK_LO+1).toHex()},x")
|
||||
out("\tsta ${(ESTACK_HI+1).toHex()},x")
|
||||
}
|
||||
|
||||
@ -783,10 +887,8 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
// Opcode.POP_VAR_FLOAT -> TODO()
|
||||
// Opcode.COPY_VAR_FLOAT -> TODO()
|
||||
// Opcode.INC_VAR_W -> TODO()
|
||||
// Opcode.INC_VAR_UW -> TODO()
|
||||
// Opcode.INC_VAR_F -> TODO()
|
||||
// Opcode.DEC_VAR_W -> TODO()
|
||||
// Opcode.DEC_VAR_UW -> TODO()
|
||||
// Opcode.DEC_VAR_F -> TODO()
|
||||
// Opcode.ADD_UW -> TODO()
|
||||
// Opcode.ADD_W -> TODO()
|
||||
@ -916,7 +1018,6 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
// Opcode.BNZ -> TODO()
|
||||
// Opcode.BNEG -> TODO()
|
||||
// Opcode.BPOS -> TODO()
|
||||
// Opcode.CALL -> TODO()
|
||||
// Opcode.SYSCALL -> TODO()
|
||||
// Opcode.BREAKPOINT -> TODO()
|
||||
}
|
||||
|
||||
@ -18,6 +18,7 @@ asmsub init_system () -> clobbers(A,X,Y) -> () {
|
||||
; This means that the BASIC, KERNAL and CHARGEN ROMs are banked in,
|
||||
; the VIC, SID and CIA chips are reset, screen is cleared, and the default IRQ is set.
|
||||
; Also a different color scheme is chosen to identify ourselves a little.
|
||||
; All three registers set to 0, status flags cleared.
|
||||
%asm {{
|
||||
sei
|
||||
cld
|
||||
|
||||
Loading…
Reference in New Issue
Block a user