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fixed some syscall docs

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Anton Lydike 2021-04-24 21:49:27 +02:00
parent 1abdc79e5e
commit e45655e4c0
1 changed files with 7 additions and 7 deletions
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docs/syscalls.md
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@ -15,15 +15,15 @@ The global symbols (e.g. `SCALL_READ`) are loaded by default. If you specify the
## Read (63) `SCALL_READ`
* `a0`: source file descriptor
* `a1`: addr in which to read
* `a1`: addr at which to write the input
* `a2`: number of bytes to read (at most)
* `return: a0` number of bytes read or -1
* `return in a0`: number of bytes read or -1
## Write (64) `SCALL_WRITE`
* `a0`: target file descriptor
* `a1`: addr from which to read
* `a2`: number of bytes to read
* `return: a0`: number of bytes written or -1
* `a1`: addr at which the data to be written is located
* `a2`: number of bytes to write
* `return in a0`: number of bytes written or -1
## Exit (93) `SCALL_EXIT`
* `a0`: exit code
@ -37,11 +37,11 @@ The global symbols (e.g. `SCALL_READ`) are loaded by default. If you specify the
- `4`: append
* `a1`: addr where path is stored
* `a2`: length of path
* `return: a0`: file descriptor of opened file or -1
* `return in a0`: file descriptor of opened file or -1
Requires flag `--scall-fs` to be set to True
## Close (1025) `SCALL_CLOSE`
* `a0`: file descriptor to close
* `return: a0`: 0 if closed correctly or -1
* `return in a0`: 0 if closed correctly or -1