Apple-2-SW/prog8
1
0
Fork 0
mirror of https://github.com/irmen/prog8.git synced 2026-04-20 11:17:01 +00:00
Code Issues Projects Releases Wiki Activity

x16 r39: more free ZP registers possible by enabling floatsafe option

Browse Source
This commit is contained in:
Irmen de Jong
2022-03-31 18:30:26 +02:00
parent d911728611
commit d1b14b68fa
3 changed files with 10 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
codeCore/src/prog8/code/target/cx16/CX16Zeropage.kt
+10 -2
View File
@@ -12,8 +12,12 @@ class CX16Zeropage(options: CompilationOptions) : Zeropage(options) {
init {
if (options.floats && options.zeropage !in arrayOf(ZeropageType.BASICSAFE, ZeropageType.DONTUSE))
throw InternalCompilerException("when floats are enabled, zero page type should be 'basicsafe' or 'dontuse'")
if (options.floats && options.zeropage !in arrayOf(
ZeropageType.FLOATSAFE,
ZeropageType.BASICSAFE,
ZeropageType.DONTUSE
))
throw InternalCompilerException("when floats are enabled, zero page type should be 'floatsafe' or 'basicsafe' or 'dontuse'")
// the addresses 0x02 to 0x21 (inclusive) are taken for sixteen virtual 16-bit api registers.
@@ -26,6 +30,10 @@ class CX16Zeropage(options: CompilationOptions) : Zeropage(options) {
free.addAll(0x22u..0x7fu)
free.addAll(0xa9u..0xffu)
}
ZeropageType.FLOATSAFE -> {
free.addAll(0x22u..0x7fu)
free.addAll(0xd4u..0xffu)
}
ZeropageType.BASICSAFE -> {
free.addAll(0x22u..0x7fu)
}