forked from Lephenixnoir/gint
Lephe
8148d89c88
This change ports the TLB management system to fx9860g through %003. This raises the size limit for add-ins to about 500k. Because SH3 fx9860g does not have ILRAM, the GMAPPED attribute has been made to generate content to a .gint.mapped section which is sent to the P1 RAM section historically dubbed "real ram" in which gint's data and VBR are installed. (Now that I think about it, gint's data should try to go to normal RAM instead to reduce pressure on this invasion.) Return-to-menu was also fixed on both platforms by narrowing down the need for code to remain mapped to the chance of running it with interrupts disabled. The natural distribution of GMAPPED under this criterion showed that _gint_setvbr had been left under TLB control; moving it to the proper RAM area fixed gint switches. Finally, an omission in the bound checks for mappable TEA addresses (TEA >= 0x00300000) prevented the appearance of a non-interactible System ERROR popup when some unmapped addresses are accessed. This version still does not enable interrupts in timer callbacks, exposing any application to a crash if a timer underflows while its callback is not mapped. It is not suitable for any stable application! |
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| .. | ||
| bootlog.c | ||
| exch.c | ||
| exch.s | ||
| gint.c | ||
| hardware.c | ||
| inth.S | ||
| mmu.c | ||
| setup.c | ||
| start.c | ||
| syscalls.S | ||
| tlbh.S | ||
| vbr.s | ||