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authorJelle Besseling <jelle@pingiun.com>2019-08-08 12:48:51 +0200
committerDrew DeVault <sir@cmpwn.com>2019-08-12 08:58:57 +0900
commit4478c6a4b7e0bc35211d4ab7c681d5d36563c274 (patch)
treea7bd5bb6e1fcec27e7cc1362138bd39080043b88 /commands/compose
parent5b523880b4b4cd2abd9457b4b09c384af33be14b (diff)
downloadaerc-4478c6a4b7e0bc35211d4ab7c681d5d36563c274.tar.gz
Ignore scroll command when msgstore is nil
Fixes ~sircmpwn/aerc2#205. Many functions do a nil check on the store,
so this changes Store() so it returns nil when msglist is nil.

It also places the Scroll() behind the nil check in the next-message command.

https://todo.sr.ht/~sircmpwn/aerc2/205
Diffstat (limited to 'commands/compose')
0 files changed, 0 insertions, 0 deletions
 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-12-02 04:46:43 +0000


 


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# Read a character from stdin, save it to a local on the stack, write it to stdout.
#
# To run:
#   $ ./bootstrap translate init.linux apps/ex5.subx -o apps/ex5
#   $ ./bootstrap run apps/ex5

== code
#   instruction                     effective address                                                   register    displacement    immediate
# . op          subop               mod             rm32          base        index         scale       r32
# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes

Entry:

    # allocate x on the stack
    81          5/subop/subtract    3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # subtract from esp

    # read(stdin, x, 1)
    # . fd = 0 (stdin)
    bb/copy-to-ebx  0/imm32
    # . data = x (location to write result to)
    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    4/base/esp  4/index/none              1/r32/ecx   4/disp8         .                 # copy esp+4 to ecx
    # . size = 1 character
    ba/copy-to-edx  1/imm32
    # . syscall
    e8/call  syscall_read/disp32

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    # . fd = 1 (stdout)
    bb/copy-to-ebx  1/imm32
    # . data = x (location to read from)
    8d/copy-address                 1/mod/*+disp8   4/rm32/sib    4/base/esp  4/index/none              1/r32/ecx   4/disp8         .                 # copy esp+4 to ecx
    # . size = 1 character
    ba/copy-to-edx  1/imm32
    # . syscall
    e8/call  syscall_write/disp32

    # exit(ebx)
    e8/call  syscall_exit/disp32

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