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bus access a bit optimized

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This commit is contained in:
Claude
2020-11-22 11:41:07 +00:00
parent f2baf55223
commit cbb5f0fd6d
2 changed files with 9325 additions and 9321 deletions
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18624
bitstream.svf
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File diff suppressed because it is too large Load Diff

22
emulator.c
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@@ -576,6 +576,7 @@ void write16(uint32_t address, uint32_t data)
*(gpio + 7) = addr_h_s;
*(gpio + 10) = addr_h_r;
while ((GET_GPIO(0)));
GPIO_CLR = 1 << 7;
GPIO_SET = 1 << 7;
@@ -593,7 +594,7 @@ void write16(uint32_t address, uint32_t data)
*(gpio) = gpfsel0;
*(gpio + 1) = gpfsel1;
*(gpio + 2) = gpfsel2;
while ((GET_GPIO(0)));
// while ((GET_GPIO(0)));
// asm volatile ("dmb" ::: "memory");
}
@@ -610,7 +611,7 @@ void write8(uint32_t address, uint32_t data)
uint32_t addr_l_r = (~address >> 16) << 8;
uint32_t data_s = (data & 0x0000ffff) << 8;
uint32_t data_r = (~data & 0x0000ffff) << 8;
// asm volatile ("dmb" ::: "memory");
W8
@@ -620,6 +621,7 @@ void write8(uint32_t address, uint32_t data)
*(gpio + 7) = addr_h_s;
*(gpio + 10) = addr_h_r;
//while ((GET_GPIO(0)));
GPIO_CLR = 1 << 7;
GPIO_SET = 1 << 7;
@@ -639,7 +641,7 @@ void write8(uint32_t address, uint32_t data)
*(gpio + 2) = gpfsel2;
while ((GET_GPIO(0)));
// asm volatile ("dmb" ::: "memory");
GPIO_SET = 1 << 7;
// GPIO_SET = 1 << 7;
}
@@ -660,6 +662,7 @@ uint32_t read16(uint32_t address)
*(gpio + 7) = addr_h_s;
*(gpio + 10) = addr_h_r;
while ((GET_GPIO(0)));
GPIO_CLR = 1 << 7;
GPIO_SET = 1 << 7;
@@ -678,9 +681,9 @@ uint32_t read16(uint32_t address)
GPIO_CLR = 1 << 6;
while (!(GET_GPIO(0)));
GPIO_CLR = 1 << 6;
asm volatile ("nop" ::);
asm volatile ("nop" ::);
asm volatile ("nop" ::);
// asm volatile ("nop" ::);
// asm volatile ("nop" ::);
// asm volatile ("nop" ::);
val = *(gpio + 13);
GPIO_SET = 1 << 6;
// asm volatile ("dmb" ::: "memory");
@@ -704,6 +707,7 @@ uint32_t read8(uint32_t address)
*(gpio + 7) = addr_h_s;
*(gpio + 10) = addr_h_r;
while ((GET_GPIO(0)));
GPIO_CLR = 1 << 7;
GPIO_SET = 1 << 7;
@@ -721,9 +725,9 @@ uint32_t read8(uint32_t address)
GPIO_CLR = 1 << 6;
while (!(GET_GPIO(0)));
GPIO_CLR = 1 << 6;
asm volatile ("nop" ::);
asm volatile ("nop" ::);
asm volatile ("nop" ::);
// asm volatile ("nop" ::);
// asm volatile ("nop" ::);
// asm volatile ("nop" ::);
val = *(gpio + 13);
GPIO_SET = 1 << 6;
// asm volatile ("dmb" ::: "memory");