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Add missing DMA side effects on I/O writes

This commit is contained in:
David Guillen Fandos 2023-04-15 11:44:02 +02:00
parent bd39c03992
commit 08372aae64
1 changed files with 7 additions and 5 deletions
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12
gba_memory.c
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@ -2421,7 +2421,8 @@ const dma_region_type dma_region_map[17] =
#define dma_write_iwram(type, tfsize) \
address##tfsize(iwram + 0x8000, type##_ptr & 0x7FFF) = \
eswap##tfsize(read_value); \
smc_trigger |= address##tfsize(iwram, type##_ptr & 0x7FFF) \
if (address##tfsize(iwram, type##_ptr & 0x7FFF)) \
alerts |= CPU_ALERT_SMC; \
#define dma_write_vram(type, tfsize) { \
u32 wraddr = type##_ptr & 0x1FFFF; \
@ -2430,7 +2431,7 @@ const dma_region_type dma_region_map[17] =
}
#define dma_write_io(type, tfsize) \
write_io_register##tfsize(type##_ptr & 0x3FF, read_value) \
alerts |= write_io_register##tfsize(type##_ptr & 0x3FF, read_value) \
#define dma_write_oam_ram(type, tfsize) \
address##tfsize(oam_ram, type##_ptr & 0x3FF) = eswap##tfsize(read_value) \
@ -2443,7 +2444,8 @@ const dma_region_type dma_region_map[17] =
#define dma_write_ewram(type, tfsize) \
address##tfsize(ewram, type##_ptr & 0x3FFFF) = eswap##tfsize(read_value); \
smc_trigger |= address##tfsize(ewram, (type##_ptr & 0x3FFFF) + 0x40000) \
if (address##tfsize(ewram, (type##_ptr & 0x3FFFF) + 0x40000)) \
alerts |= CPU_ALERT_SMC; \
#define print_line() \
dma_print(src_op, dest_op, tfsize); \
@ -2471,7 +2473,7 @@ cpu_alert_type dma_tf_loop##tfsize( \
{ \
u32 i; \
u32 read_value; \
u32 smc_trigger = 0; \
cpu_alert_type alerts = CPU_ALERT_NONE; \
u32 src_region = MIN(src_ptr >> 24, 16); \
u32 dest_region = MIN(dest_ptr >> 24, 16); \
dma_region_type src_region_type = dma_region_map[src_region]; \
@ -2677,7 +2679,7 @@ cpu_alert_type dma_tf_loop##tfsize( \
if (wb) /* Update destination pointer if requested */ \
dma->dest_address = dest_ptr; \
\
return smc_trigger ? CPU_ALERT_SMC : CPU_ALERT_NONE; \
return alerts; \
} \
dma_tf_loop_builder(16);