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fixed the famous 'SYS 64738', some documentation fixes

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FeralChild64 committed 2019-10-15 17:26:05 +02:00
1 parent 5c58af117a
commit 076a839f1a
6 files changed
+23 -12
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c64/aliases/,aliases_petscii_codes.s
+6 -5
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@@ -15,8 +15,8 @@
.const KEY_FLAG_SHIFT = %00000001
.const KEY_FLAG_VENDOR = %00000010
.const KEY_FLAG_CTRL = %00000100
.const KEY_FLAG_ALT = %00001000 // C65 / C128
.const KEY_FLAG_NO_SCRL = %00100000 // C65 / C128, Open ROMs unofficial
.const KEY_FLAG_ALT = %00001000 // C65 / C128 XXX implement this
.const KEY_FLAG_NO_SCRL = %00100000 // C65 / C128, Open ROMs unofficial XXX implement this
// Note - the following PETSCII codes are currently unassigned, can be used for further extensions:
@@ -27,18 +27,17 @@
.const KEY_NA = $00 // to indicate that no key is presed
// PETSCII codes for our extended screen editor
// PETSCII codes for our extended screen editor XXX implement these
.const KEY_BOTTOM = $02 // CTRL+B - DolphinDOS compatible
.const KEY_TAB_FW = $8F // CTRL+>, TAB - Open ROMs unofficial
.const KEY_TAB_BW = $80 // CTRL+<, SHIFT+TAB - Open ROMs unofficial
// PETSCII codes for certain C128 and C65 functionalities
// PETSCII codes for certain C128 and C65 functionalities XXX implement these
.const KEY_BELL = $07 // C65 / C128, no key
.const KEY_ESC = $1B // C65 / C128
.const KEY_HELP = $10 // C65 / C128, Open ROMs unofficial
// PETSCII codes for programmable keys
@@ -61,6 +60,8 @@
.const KEY_F13 = $19 // C65, Open ROMs unofficial
.const KEY_F14 = $1A // C65, Open ROMs unofficial
.const KEY_HELP = $10 // C65 / C128, Open ROMs unofficial
// PETSCII codes for cursor keys
c64/kernal/interrupts/hw_entry_reset.s → c64/kernal/interrupts/fce2.hw_entry_reset.s
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c64/kernal/interrupts/fce2.interop
+5
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@@ -0,0 +1,5 @@
System reset routine has to be placed under it's original location due to 'SYS 64738' being extremaly popular to reset the C64,
to the point it went into popular culture.
https://twitter.com/hashtag/SYS64738?src=hash
https://www.computerhope.com/jargon/s/sys64738.htm
c64/kernal/keyboard/scnkey_legacy.s
+5
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@@ -9,6 +9,11 @@
//
// NOTE: The code here is described as legacy, because the algorithm (although working very well)
// requires much more RAM than the original Kernal routine uses; without any form of extended
// RAM available to Open ROMs it will always be a serious compatibility risk.
#if CONFIG_LEGACY_SCNKEY