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| author | Benji Dial <benji6283@gmail.com> | 2021-02-16 20:38:53 -0500 |
|---|---|---|
| committer | Benji Dial <benji6283@gmail.com> | 2021-02-16 20:38:53 -0500 |
| commit | 47513bd32c256c4f35e3a8ced7d9fd7e15903530 (patch) | |
| tree | cafdf75d52a954814726e07445063c41bb6599f9 /doc | |
| parent | bd7facc4b5f53481dc85a15ba123361b2758655b (diff) | |
| download | portland-os-47513bd32c256c4f35e3a8ced7d9fd7e15903530.tar.gz | |
terminal application with ipc, shift+pause state dumper, hello world for terminal, meminfo popup program
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/internal/mem.txt | 1 | ||||
| -rw-r--r-- | doc/ints.txt | 15 |
2 files changed, 9 insertions, 7 deletions
diff --git a/doc/internal/mem.txt b/doc/internal/mem.txt index c5f5e8b..1606ca1 100644 --- a/doc/internal/mem.txt +++ b/doc/internal/mem.txt @@ -17,6 +17,7 @@ 0x0003.0000 - 0x0003.7fff (32k): kernel text, data, rodata 0x0003.8000 - 0x0003.ffff (32k): kernel stack 0x0004.0000 - 0x0005.ffff (128k): pagemap +0x0006.0000 - 0x0007.ffff (128k): shared kernel page tables 0x000a.0000 - 0x000f.ffff (384k): VGA and BIOS memory diff --git a/doc/ints.txt b/doc/ints.txt index ca4d91f..fff08fb 100644 --- a/doc/ints.txt +++ b/doc/ints.txt @@ -18,9 +18,10 @@ functions returning handles or pointers use 0 to indicate error. see keys.txt for the return type of the "get key" system call. the edx register of "start task" is a pointer to a null-terminated string. a pointer to a readonly copy of this string is put into the new task's edx. - the esi register of the new task contains a handle to the caller's task. - the edi register is copied directly, and is intended to hold a task handle. - this task handle is who stdio ipc communication should be done with. + the esi register is passed through directly, and is meant to be a task handle. + this is a task handle who stdio ipc communication should be done with. + the new task receives the calling task's handle in edi + the new task receives its own handle in ecx. ipc operations return 0xffffffff if the specified task doesn't exist. "find unread ipc" system call returns 0 if there is no unread ipc. @@ -35,7 +36,7 @@ table 1: close file | 0x01 | | handle | | | | file read | 0x02 | read | handle | file offset | count | buffer | get file size | 0x03 | size | handle | | | | - start task | 0x04 | handle | drive number | path | passed sz | | passed dword + start task | 0x04 | handle | drive number | path | passed sz | passed dword | ipc send | 0x05 | written | task handle | max count | buffer | | ipc read | 0x06 | read | task handle | max count | buffer | | allocate ram | 0x07 | start pointer | pages | | | | @@ -46,13 +47,13 @@ table 1: count of dir | 0x0c | number of files | drive number | path | | | new window | 0x0d | window handle | width | height | pixel buffer | | delete window | 0x0e | | window handle | | | | - resize window | 0x0f | | window handle | width | height | | + resize window | 0x0f | | window handle | width | height | pixel buffer | reassign pixbuf | 0x10 | | window handle | pixel buffer | | | paint window | 0x11 | | window handle | | | | get win action | 0x12 | | window handle | action pointer | | | wait for action | 0x13 | | | | | | - wait ipc send | 0x14 | | sending task | | | | - wait any ipc send | 0x15 | | | | | | + wait ipc sent | 0x14 | | sending task | | | | + wait any ipc sent | 0x15 | | | | | | find unread ipc | 0x16 | sending task | | | | | wait ipc read | 0x17 | | reading task | | | | is task running | 0x18 | boolean | task handle | | | | |