From 4f5eb6caa0ea719f3590fa6a1bd326a7ddd3a175 Mon Sep 17 00:00:00 2001
From: StapleButter <thetotalworm@gmail.com>
Date: Thu, 23 Mar 2017 23:47:55 +0100
Subject: support for tiny EEPROM
---
src/ARM.cpp | 5 +++--
src/NDSCart.cpp | 40 +++++++++++++++++++++++++++++++++++++++-
2 files changed, 42 insertions(+), 3 deletions(-)
(limited to 'src')
diff --git a/src/ARM.cpp b/src/ARM.cpp
index f15ce74..a2e0066 100644
--- a/src/ARM.cpp
+++ b/src/ARM.cpp
@@ -171,8 +171,9 @@ void ARM::JumpTo(u32 addr, bool restorecpsr)
else addr &= ~0x1;
}
- if (addr == 0x0201764C) printf("capture test %d: R1=%08X\n", R[6], R[1]);
- if (addr == 0x020175D8) printf("capture test %d: res=%08X\n", R[6], R[0]);
+ // aging cart debug crap
+ //if (addr == 0x0201764C) printf("capture test %d: R1=%08X\n", R[6], R[1]);
+ //if (addr == 0x020175D8) printf("capture test %d: res=%08X\n", R[6], R[0]);
if (addr & 0x1)
{
diff --git a/src/NDSCart.cpp b/src/NDSCart.cpp
index 29da046..615390b 100644
--- a/src/NDSCart.cpp
+++ b/src/NDSCart.cpp
@@ -268,7 +268,45 @@ void Write_Null(u8 val, bool islast) {}
void Write_EEPROMTiny(u8 val, bool islast)
{
- // TODO
+ switch (CurCmd)
+ {
+ case 0x02:
+ case 0x0A:
+ if (DataPos < 1)
+ {
+ Addr = val;
+ Data = 0;
+ }
+ else
+ {
+ SRAM[(Addr & 0xFF) | ((CurCmd==0x0A)?0x100:0)] = val;
+ Addr++;
+ }
+ break;
+
+ case 0x03:
+ case 0x0B:
+ if (DataPos < 1)
+ {
+ Addr = val;
+ Data = 0;
+ }
+ else
+ {
+ Data = SRAM[(Addr & 0xFF) | ((CurCmd==0x0B)?0x100:0)];
+ Addr++;
+ }
+ break;
+
+ case 0x9F:
+ Data = 0xFF;
+ break;
+
+ default:
+ if (DataPos==0)
+ printf("unknown tiny EEPROM save command %02X\n", CurCmd);
+ break;
+ }
}
void Write_EEPROM(u8 val, bool islast)
--
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