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Fix dumping Hangman (3K cart)

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This commit is contained in:
sanni 2023-02-26 12:14:15 +01:00
parent 6edbd4baa8
commit 7eb59aca1e
1 changed files with 18 additions and 6 deletions
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24
Cart_Reader/FAIRCHILD.ino
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@ -442,8 +442,19 @@ void readROM_FAIRCHILD() {
myFile.write(sdBuffer, 512);
delay(1); // Added delay
for (int z = 1; z < blocks; z++) {
// Skip BIOS/Blocks Code for 4K Cart
if (cartsize == 0x1000) { // Pro Football 4K
if (cartsize == 0x0C00) { // 3K
// Skip SRAM Code for 3K Carts - Tested with Hangman 3K
// Hangman uses an F21022PC 1K SRAM Chip at 0x0400
// SRAM is NOT Battery Backed so contents change
// Chips are organized: 1K ROM + 1K SRAM + 1K ROM + 1K ROM
if (z == 2) {
for (int x = 0; x < 0x0A00; x++) { // Skip 1K SRAM at 0x0400
readData_FAIRCHILD();
}
}
} else if (cartsize == 0x1000) { // 4K
// Skip BIOS/Blocks Code for 4K Carts - Tested with Pro Football 4K
// Pro Football uses a DM74LS02N (Quad 2-Input NOR Gate) with two 2K ROM Chips
setROMC_FAIRCHILD(0x8); // Clear PC0
setREAD_FAIRCHILD();
uint16_t offset = z * 0x200;
@ -500,10 +511,11 @@ void read16K_FAIRCHILD() // Read 16K Bytes
unsigned long cartsize = FAIRCHILD[fairchildsize] * 0x400;
for (int y = 0; y < 0x20; y++) {
// Skip BIOS/Blocks Code for 4K Cart
// 3K CARTS MAY NEED THE SKIP BIOS/BLOCKS ROUTINE USED FOR THE 4K CART
// TEST 3K CARTS BY SETTING ROM SIZE TO 2K/4K AND COMPARE 16K DUMPS
if (cartsize == 0x1000) { // Pro Football 4K
if (cartsize == 0x1000) { // 4K
// Skip BIOS/Blocks Code for 4K Carts - Tested with Pro Football 4K
// Pro Football uses a DM74LS02N (Quad 2-Input NOR Gate) with two 2K ROM Chips
// IF OTHER 4K CARTS DO NOT DUMP PROPERLY USING READROM
// TEST BY SETTING ROM SIZE TO 2K AND 4K THEN COMPARE 16K DUMPS
setROMC_FAIRCHILD(0x8); // Clear PC0
setREAD_FAIRCHILD();
uint16_t offset = y * 0x200;