sh: Add rdall command

applications/sh/commands/commands.asm

@@ -36,6 +36,11 @@ shell_parse_command:
     call compare_string
     ifz jmp shell_help_command
 
+    ; rdall
+    mov r1, shell_rdall_command_string
+    call compare_string
+    ifz jmp shell_rdall_command
+
     ; rdnext
     mov r1, shell_rdnext_command_string
     call compare_string
@@ -69,6 +74,7 @@ shell_invalid_command_string: data.str "invalid command or FXF binary" data.8 10
     #include "commands/diskrm.asm"
     #include "commands/exit.asm"
     #include "commands/help.asm"
+    #include "commands/rdall.asm"
     #include "commands/rdnext.asm"
     #include "commands/shutdown.asm"
     #include "commands/type.asm"

applications/sh/commands/help.asm

@@ -22,6 +22,7 @@ shell_help_text:
     data.str "diskrm  | remove disk $0" data.8 10
     data.str "exit    | exit the shell" data.8 10
     data.str "help    | show this help text" data.8 10
+    data.str "rdall   | redirect all IO to $0" data.8 10
     data.str "rdnext  | redirect the next command's IO" data.8 10
     data.str "shutdown| turn the computer off" data.8 10
     data.str "type    | print contents of file $0" data.8 10

applications/sh/commands/rdall.asm

@@ -0,0 +1,26 @@
+; rdall command
+
+shell_rdall_command_string: data.strz "rdall"
+
+shell_rdall_command:
+    call shell_parse_arguments
+    push r0
+    call get_current_disk_id
+    mov r1, r0
+    pop r0
+    mov r2, shell_redirect_stream_struct
+    call open
+    cmp r0, 0
+    ifz jmp shell_rdall_command_failed_to_open
+
+    mov.8 [shell_redirect_next], 0
+    mov [shell_stream_struct_ptr], shell_redirect_stream_struct
+
+    ret
+
+shell_rdall_command_failed_to_open:
+    mov r0, shell_rdnext_command_failed_to_open_string
+    call print_str_to_terminal
+    ret
+
+shell_rdall_command_failed_to_open_string: data.str "failed to open file/stream for redirect" data.8 10 data.8 0

applications/sh/commands/rdnext.asm

@@ -26,4 +26,4 @@ shell_rdnext_command_failed_to_open:
     call print_str_to_terminal
     ret
 
-shell_rdnext_command_failed_to_open_string: data.str "failed to open file for redirect" data.8 10 data.8 0
+shell_rdnext_command_failed_to_open_string: data.str "failed to open file/stream for redirect" data.8 10 data.8 0