From 183b240547590b5d683d11211323a78293710efd Mon Sep 17 00:00:00 2001 From: Lionel Debroux Date: Wed, 12 Aug 2020 17:09:30 +0200 Subject: [PATCH] libticalcs: support ROM dumps for the 82A, they're possible after usage of ACE/RCE vulnerabilities. Reported by Gerald "grosged" DeGroote, who patched the ROM dumper to use a ION-style header for CalcUtil/NoShell. Signed-off-by: Lionel Debroux --- libticalcs/trunk/src/Makefile.am | 5 +- libticalcs/trunk/src/calc_84p.cc | 7 +- libticalcs/trunk/src/rom82a.h | 196 ++++++++++++++++++ .../trunk/src/romdump_84p_usb/Makefile.am | 6 + .../trunk/src/romdump_84p_usb/romdump.z80 | 8 +- 5 files changed, 219 insertions(+), 3 deletions(-) create mode 100644 libticalcs/trunk/src/rom82a.h diff --git a/libticalcs/trunk/src/Makefile.am b/libticalcs/trunk/src/Makefile.am index 12eaddac9..f952e68db 100644 --- a/libticalcs/trunk/src/Makefile.am +++ b/libticalcs/trunk/src/Makefile.am @@ -89,7 +89,10 @@ rom84p.h: romdump_84p_usb/dump84p.8xp $(tf2hex) rom84pcu.h: romdump_84p_usb/dump84pcu.8xp $(tf2hex) $(tf2hex) romdump_84p_usb/dump84pcu.8xp $(srcdir)/rom84pcu.h 84pcu -romdump_84p_usb/dump84p.8xp romdump_84p_usb/dump84pcu.8xp: +rom82a.h: romdump_84p_usb/dump82a.8xp $(tf2hex) + $(tf2hex) romdump_84p_usb/dump82a.8xp $(srcdir)/rom82a.h 82a + +romdump_84p_usb/dump84p.8xp romdump_84p_usb/dump84pcu.8xp romdump_84p_usb/dump82a.8xp: cd romdump_84p_usb && $(MAKE) rom834pceu.h: romdump_834pce_usb/dump834pceu.8xp $(tf2hex) diff --git a/libticalcs/trunk/src/calc_84p.cc b/libticalcs/trunk/src/calc_84p.cc index a866cef5f..93c04e788 100644 --- a/libticalcs/trunk/src/calc_84p.cc +++ b/libticalcs/trunk/src/calc_84p.cc @@ -43,6 +43,7 @@ #include "dusb_cmd.h" #include "rom84p.h" #include "rom84pcu.h" +#include "rom82a.h" #include "rom834pceu.h" #include "romdump.h" #include "keys83p.h" @@ -1219,6 +1220,10 @@ static int dump_rom_1 (CalcHandle* handle) { ret = rd_send(handle, "romdump.8Xp", romDumpSize84pcu, romDump84pcu); } + else if (infos.model == CALC_TI82A_USB) + { + ret = rd_send(handle, "romdump.8Xp", romDumpSize82a, romDump82a); + } else if (infos.model == CALC_TI84PCE_USB || infos.model == CALC_TI83PCE_USB) { ret = rd_send(handle, "romdump.8Xp", romDumpSize834pceu, romDump834pceu); @@ -2292,7 +2297,7 @@ extern const CalcFncts calc_82a_usb = "TI-82 Advanced", N_("TI-82 Advanced thru DirectLink"), OPS_ISREADY | OPS_SCREEN | OPS_DIRLIST | OPS_VARS | /*OPS_FLASH |*/ OPS_OS | - OPS_IDLIST | /*OPS_ROMDUMP |*/ OPS_CLOCK | OPS_DELVAR | OPS_VERSION | OPS_BACKUP | OPS_KEYS | + OPS_IDLIST | OPS_ROMDUMP | OPS_CLOCK | OPS_DELVAR | OPS_VERSION | OPS_BACKUP | OPS_KEYS | OPS_RENAME | OPS_CHATTR | FTS_SILENT | FTS_MEMFREE | FTS_FLASH, PRODUCT_ID_TI82A, diff --git a/libticalcs/trunk/src/rom82a.h b/libticalcs/trunk/src/rom82a.h new file mode 100644 index 000000000..8892e122b --- /dev/null +++ b/libticalcs/trunk/src/rom82a.h @@ -0,0 +1,196 @@ +static unsigned char romDump82a[] = { +0x2a, 0x2a, 0x54, 0x49, 0x38, 0x33, 0x46, 0x2a, +0x1a, 0x0a, 0x00, 0x43, 0x72, 0x65, 0x61, 0x74, +0x65, 0x64, 0x20, 0x62, 0x79, 0x20, 0x74, 0x69, +0x70, 0x61, 0x63, 0x6b, 0x20, 0x30, 0x2e, 0x31, +0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +0x00, 0x00, 0x00, 0x00, 0x00, 0xcb, 0x05, 0x0d, +0x00, 0xba, 0x05, 0x06, 0x52, 0x4f, 0x4d, 0x44, +0x55, 0x4d, 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0x3f, 0xc0, 0x7e, +0xb8, 0xc9, 0x6f, 0x6d, +}; +static unsigned int romDumpSize82a = 1540; diff --git a/libticalcs/trunk/src/romdump_84p_usb/Makefile.am b/libticalcs/trunk/src/romdump_84p_usb/Makefile.am index 330c627bd..763dc5b08 100644 --- a/libticalcs/trunk/src/romdump_84p_usb/Makefile.am +++ b/libticalcs/trunk/src/romdump_84p_usb/Makefile.am @@ -14,8 +14,14 @@ dump84p.bin: romdump.z80 dump84pcu.bin: romdump.z80 $(PASMO) $(PASMOFLAGS) -E TI84PC $(srcdir)/romdump.z80 dump84pcu.bin +dump82a.bin: romdump.z80 + $(PASMO) $(PASMOFLAGS) -E TI82A $(srcdir)/romdump.z80 dump82a.bin + dump84p.8xp: dump84p.bin $(TIPACK) -n 'ROMDUMP' dump84p.bin -p -o dump84p.8xp dump84pcu.8xp: dump84pcu.bin $(TIPACK) -n 'ROMDUMP' dump84pcu.bin -p -o dump84pcu.8xp + +dump82a.8xp: dump82a.bin + $(TIPACK) -n 'ROMDUMP' dump82a.bin -p -o dump82a.8xp diff --git a/libticalcs/trunk/src/romdump_84p_usb/romdump.z80 b/libticalcs/trunk/src/romdump_84p_usb/romdump.z80 index c2a83bd61..d225678ab 100644 --- a/libticalcs/trunk/src/romdump_84p_usb/romdump.z80 +++ b/libticalcs/trunk/src/romdump_84p_usb/romdump.z80 @@ -156,14 +156,20 @@ outputBuffer equ appBackUpScreen+2 org userMem-2 if defined TI84P db 0BBh,6Dh + B_CALL _runIndicOff endif if defined TI84PC db 0EFh,69h res appTextSave,(iy+appFlags) ld a,1 out (20h),a -endif B_CALL _runIndicOff +endif +if defined TI82A +; ION-style header for CalcUtil + xor a,a + db 00h,00h +endif ; Unlock Flash, if possible. ; The purpose is to get an accurate dump of the certificate page (page 3Eh/7Eh). if defined TI84P