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UNIF: Fix potential crash when accessing non-existing rom banks

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- As stated, prevent a potential crash on some certain roms using split rom banks. This is done by counting the number of prg/chr banks loaded and using this as limit count during mapper bank switching.
- Update related boards.
This commit is contained in:
retro-wertz
2019-06-28 19:25:35 +08:00
parent 83b2f99527
commit 634eb688c1
11 changed files with 91 additions and 38 deletions
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16
src/boards/resettxrom.c
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@@ -27,12 +27,24 @@
#include "mapinc.h"
#include "mmc3.h"
static uint8 chip;
static void M313CW(uint32 A, uint8 V) {
setchr1r(CHRptr[1] ? EXPREGS[0] : 0, A, (EXPREGS[0] << 7) | (V & 0x7F));
if (CHRptr[1]) {
chip = EXPREGS[0];
if (chip > CHRchip_max) chip &= CHRchip_max;
setchr1r(chip, A, (V & 0x7F));
} else
setchr1(A, (EXPREGS[0] << 7) | (V & 0x7F));
}
static void M313PW(uint32 A, uint8 V) {
setprg8r(PRGptr[1] ? EXPREGS[0] : 0, A, (EXPREGS[0] << 4) | (V & 0x0F));
if (PRGptr[1]) {
chip = EXPREGS[0];
if (chip > PRGchip_max) chip &= PRGchip_max;
setprg8r(chip, A, (V & 0x0F));
} else
setprg8(A, (EXPREGS[0] << 4) | (V & 0x0F));
}
static void M313Reset(void) {