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Optimize IO in

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Around 36% faster
This commit is contained in:
Adrien Moulin
2022-08-09 19:14:42 +02:00
parent 2a6a061556
commit 26d6b308a9
3 changed files with 48 additions and 32 deletions
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5
src/machine/m_amstrad.c
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@@ -156,7 +156,7 @@ typedef struct {
fdc_t *fdc;
} amstrad_t;
int amstrad_latch;
uint32_t amstrad_latch;
static uint8_t key_queue[16];
static int key_queue_start = 0,
@@ -2255,7 +2255,7 @@ ams_read(uint16_t port, void *priv)
else if (video_is_mda())
ret |= 0xc0;
switch (amstrad_latch) {
switch (amstrad_latch & 0x7fffffff) {
case AMSTRAD_NOLATCH:
ret &= ~0x20;
break;
@@ -2293,6 +2293,7 @@ machine_amstrad_init(const machine_t *model, int type)
ams = (amstrad_t *) malloc(sizeof(amstrad_t));
memset(ams, 0x00, sizeof(amstrad_t));
ams->type = type;
amstrad_latch = 0x80000000;
switch (type) {
case AMS_PC200: