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| author | Nao Pross <naopross@thearcway.org> | 2017-11-09 13:17:35 +0100 |
|---|---|---|
| committer | Nao Pross <naopross@thearcway.org> | 2017-11-09 13:17:35 +0100 |
| commit | 3b2f2ea6c6fbfcb23ea9ab324c83d602d45a8820 (patch) | |
| tree | 2362bfb36432e551f2f0025d4f12554bddc863c9 /sw/z80/arch/sleep.c | |
| parent | Update gitignore and add sdcc manual (diff) | |
| download | z80uPC-3b2f2ea6c6fbfcb23ea9ab324c83d602d45a8820.tar.gz z80uPC-3b2f2ea6c6fbfcb23ea9ab324c83d602d45a8820.zip | |
Update makefile, and bug fix in pio driver and usart
Diffstat (limited to 'sw/z80/arch/sleep.c')
| -rw-r--r-- | sw/z80/arch/sleep.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sw/z80/arch/sleep.c b/sw/z80/arch/sleep.c new file mode 100644 index 0000000..154e7ec --- /dev/null +++ b/sw/z80/arch/sleep.c @@ -0,0 +1,16 @@ +#include "sleep.h" + +void usleep(uint16_t microseconds) +{ + __asm + pop hl +loop: + ld bc, #SLEEP_UNIT +unit: + nop + dec bc + jr nz, unit + dec hl + jr nz,loop + __endasm; +}
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