RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

move saving SH2 SR into memory access and do so only if needed

Browse source
This commit is contained in:
kub 2019-03-27 21:58:32 +01:00
parent 9031406131
commit ff0eaa11d9
4 changed files with 84 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

5
pico/32x/sh2soc.c
View file

@ -25,6 +25,9 @@
#include "../pico_int.h"
#include "../memory.h"
#include "../../cpu/sh2/compiler.h"
DRC_DECLARE_SR;
// DMAC handling
struct dma_chan {
unsigned int sar, dar; // src, dst addr
@ -413,10 +416,12 @@ void REGPARM(3) sh2_peripheral_write32(u32 a, u32 d, SH2 *sh2)
if (!(dmac->dmaor & DMA_DME))
return;
DRC_SAVE_SR(sh2);
if ((dmac->chan[0].chcr & (DMA_TE|DMA_DE)) == DMA_DE)
dmac_trigger(sh2, &dmac->chan[0]);
if ((dmac->chan[1].chcr & (DMA_TE|DMA_DE)) == DMA_DE)
dmac_trigger(sh2, &dmac->chan[1]);
DRC_RESTORE_SR(sh2);
}
}