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> compile NEMU

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221220000 张三
Linux zzy 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 12:55:29 up 2 days,  3:09,  1 user,  load average: 0.55, 0.48, 0.44
This commit is contained in:
tracer-ics2023
2024-09-14 12:55:29 +08:00
committed by zzy
parent 6493b003a9
commit 85e1ea4806
1 changed files with 3 additions and 3 deletions
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6
nemu/src/device/timer.c
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@ -19,13 +19,12 @@
static uint32_t *rtc_port_base = NULL; static uint32_t *rtc_port_base = NULL;
__attribute_noinline__
static void rtc_io_handler(uint32_t offset, int len, bool is_write) { static void rtc_io_handler(uint32_t offset, int len, bool is_write) {
assert(offset == 0 || offset == 4); assert(offset == 0 || offset == 4);
if (!is_write && offset == 4) { if (!is_write && offset == 4) {
uint64_t us = get_time(); uint64_t us = get_time();
((volatile uint32_t*)rtc_port_base)[0] = (uint32_t)us; rtc_port_base[0] = (uint32_t)us;
((volatile uint32_t*)rtc_port_base)[1] = us >> 32; rtc_port_base[1] = us >> 32;
} }
} }
@ -40,6 +39,7 @@ static void timer_intr() {
void init_timer() { void init_timer() {
rtc_port_base = (uint32_t *)new_space(8); rtc_port_base = (uint32_t *)new_space(8);
get_time();
#ifdef CONFIG_HAS_PORT_IO #ifdef CONFIG_HAS_PORT_IO
add_pio_map ("rtc", CONFIG_RTC_PORT, rtc_port_base, 8, rtc_io_handler); add_pio_map ("rtc", CONFIG_RTC_PORT, rtc_port_base, 8, rtc_io_handler);
#else #else