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picorv32
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c++/c99-style for loops in firmware

This commit is contained in:
Clifford Wolf 2015-07-04 11:47:43 +02:00
parent 91f75bdf1f
commit 21da66db68
4 changed files with 7 additions and 11 deletions
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5
firmware/irq.c
View File

@ -30,7 +30,6 @@ uint32_t *irq(uint32_t *regs, uint32_t irqs)
if ((irqs & 6) != 0) if ((irqs & 6) != 0)
{ {
int i, k;
uint32_t pc = regs[0] - 4; uint32_t pc = regs[0] - 4;
uint32_t instr = *(uint32_t*)pc; uint32_t instr = *(uint32_t*)pc;
@ -59,8 +58,8 @@ uint32_t *irq(uint32_t *regs, uint32_t irqs)
print_str("\n"); print_str("\n");
} }
for (i = 0; i < 8; i++) for (int i = 0; i < 8; i++)
for (k = 0; k < 4; k++) for (int k = 0; k < 4; k++)
{ {
int r = i + k*8; int r = i + k*8;

3
firmware/multest.c
View File

@ -17,8 +17,7 @@ static uint32_t xorshift32(void) {
void multest(void) void multest(void)
{ {
int i; for (int i = 0; i < 10; i++)
for (i = 0; i < 10; i++)
{ {
uint32_t a = xorshift32(); uint32_t a = xorshift32();
uint32_t b = xorshift32(); uint32_t b = xorshift32();

3
firmware/print.c
View File

@ -35,8 +35,7 @@ void print_dec(unsigned int val)
void print_hex(unsigned int val) void print_hex(unsigned int val)
{ {
int i; for (int i = 32-4; i >= 0; i -= 4)
for (i = 32-4; i >= 0; i -= 4)
*((volatile uint32_t*)OUTPORT) = "0123456789ABCDEF"[(val >> i) % 16]; *((volatile uint32_t*)OUTPORT) = "0123456789ABCDEF"[(val >> i) % 16];
} }

7
firmware/sieve.c
View File

@ -54,18 +54,17 @@ static void print_prime(int idx, int val)
void sieve(void) void sieve(void)
{ {
int i, j, k;
int idx = 1; int idx = 1;
hash = 5381; hash = 5381;
print_prime(idx++, 2); print_prime(idx++, 2);
for (i = 0; i < BITMAP_SIZE; i++) { for (int i = 0; i < BITMAP_SIZE; i++) {
if (bitmap_get(i)) if (bitmap_get(i))
continue; continue;
print_prime(idx++, 3+2*i); print_prime(idx++, 3+2*i);
for (j = 2*(3+2*i);; j += 3+2*i) { for (int j = 2*(3+2*i);; j += 3+2*i) {
if (j%2 == 0) if (j%2 == 0)
continue; continue;
k = (j-3)/2; int k = (j-3)/2;
if (k >= BITMAP_SIZE) if (k >= BITMAP_SIZE)
break; break;
bitmap_set(k); bitmap_set(k);