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c64 zeropage: added a few more locations to Kernalsafe free list that should be safe

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this makes $02-$21 inclusive, available for use later (x16 virtual registers are placed here on x16...)
This commit is contained in:
Irmen de Jong
2022-07-17 12:12:47 +02:00
parent a07c52e112
commit cfb31377fc
3 changed files with 16 additions and 17 deletions
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codeCore/src/prog8/code/target/c64/C64Zeropage.kt
+5 -6
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@@ -29,10 +29,9 @@ class C64Zeropage(options: CompilationOptions) : Zeropage(options) {
} else {
if (options.zeropage == ZeropageType.KERNALSAFE || options.zeropage == ZeropageType.FLOATSAFE) {
free.addAll(listOf(
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
0x16, 0x17, 0x18, 0x19, 0x1a,
0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21,
0x22, 0x23, 0x24, 0x25,
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25,
0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46,
0x47, 0x48, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x51, 0x52, 0x53,
0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60,
@@ -48,8 +47,8 @@ class C64Zeropage(options: CompilationOptions) : Zeropage(options) {
if (options.zeropage == ZeropageType.FLOATSAFE) {
// remove the zeropage locations used for floating point operations from the free list
free.removeAll(listOf(
0x22, 0x23, 0x24, 0x25,
0x10, 0x11, 0x12, 0x26, 0x27, 0x28, 0x29, 0x2a,
0x03, 0x04, 0x10, 0x11, 0x12,
0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60,
0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72,