thomas/thomasloven.com
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Update markdown and tabs and stuff

Browse Source
This commit is contained in:
Thomas Lovén
2016-10-22 17:07:50 +02:00
parent 67e817490e
commit a27daafa0a
39 changed files with 2249 additions and 2139 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
pages/2012-07-03-Vim-Macros.md
View File

@@ -7,8 +7,8 @@ tags: [osdev]
Today I was writing some code for handling interrupts.
At one point I needed the following piece of code
extern void isr0(void), isr1(void), isr2(void), isr3(void), isr4(void), isr5(void), isr6(void), isr7(void), isr8(void), isr9(void), isr10(void), isr11(void), isr12(void), isr13(void), isr14(void), isr15(void), isr16(void), isr17(void), isr18(void), isr19(void), isr20(void), isr21(void), isr22(void), isr23(void), isr24(void), isr25(void), isr26(void), isr27(void), isr28(void), isr29(void), isr30(void), isr31(void), isr32(void), isr33(void), isr34(void), isr35(void), isr36(void), isr37(void), isr38(void), isr39(void), isr40(void), isr41(void), isr42(void), isr43(void), isr44(void), isr45(void), isr46(void), isr47(void);
{: .prettyprint}
:::c
extern void isr0(void), isr1(void), isr2(void), isr3(void), isr4(void), isr5(void), isr6(void), isr7(void), isr8(void), isr9(void), isr10(void), isr11(void), isr12(void), isr13(void), isr14(void), isr15(void), isr16(void), isr17(void), isr18(void), isr19(void), isr20(void), isr21(void), isr22(void), isr23(void), isr24(void), isr25(void), isr26(void), isr27(void), isr28(void), isr29(void), isr30(void), isr31(void), isr32(void), isr33(void), isr34(void), isr35(void), isr36(void), isr37(void), isr38(void), isr39(void), isr40(void), isr41(void), isr42(void), isr43(void), isr44(void), isr45(void), isr46(void), isr47(void);
###The solution
Vim macros.
@@ -17,7 +17,7 @@ I've been using this site and my rewrite of my operating system as an excuse to
learn vim. And today it payed off. To write the above piece of code I used the
key presses
iisr0(void),<esc>0qayyp3l<ctrl>a0q46@a47k48J$r;Iextern void <esc>
iisr0(void),<esc>0qayyp3l<ctrl>a0q46@a47k48J$r;Iextern void <esc>
Couldn't be easier!
@@ -25,7 +25,7 @@ OK, so maybe it could... Let's break it down.
Let's start with
iisr0(void),<esc>
iisr0(void),<esc>
_i_ puts vim in Insert mode. There we write _isr0(void),_ and finally leave
Insert mode with the escape key.
@@ -33,7 +33,7 @@ Insert mode with the escape key.
Next is _0_ to bring the pointer to the beginning of the line. Then comes the
macro.
qayyp3l<ctrl>a0q
qayyp3l<ctrl>a0q
_qa_ starts recording a macro into register a.
@@ -48,13 +48,13 @@ recording.
The next part:
46@a47k48J
46@a47k48J
runs the macro 46 times, steps up 47 times and joins the current line with the
next 48 times. We now have
isr0(void), isr1(void), isr2(void), isr3(void), isr4(void), isr5(void), isr6(void), isr7(void), isr8(void), isr9(void), isr10(void), isr11(void), isr12(void), isr13(void), isr14(void), isr15(void), isr16(void), isr17(void), isr18(void), isr19(void), isr20(void), isr21(void), isr22(void), isr23(void), isr24(void), isr25(void), isr26(void), isr27(void), isr28(void), isr29(void), isr30(void), isr31(void), isr32(void), isr33(void), isr34(void), isr35(void), isr36(void), isr37(void), isr38(void), isr39(void), isr40(void), isr41(void), isr42(void), isr43(void), isr44(void), isr45(void), isr46(void),
{: .prettyprint}
:::c
isr0(void), isr1(void), isr2(void), isr3(void), isr4(void), isr5(void), isr6(void), isr7(void), isr8(void), isr9(void), isr10(void), isr11(void), isr12(void), isr13(void), isr14(void), isr15(void), isr16(void), isr17(void), isr18(void), isr19(void), isr20(void), isr21(void), isr22(void), isr23(void), isr24(void), isr25(void), isr26(void), isr27(void), isr28(void), isr29(void), isr30(void), isr31(void), isr32(void), isr33(void), isr34(void), isr35(void), isr36(void), isr37(void), isr38(void), isr39(void), isr40(void), isr41(void), isr42(void), isr43(void), isr44(void), isr45(void), isr46(void),
and all we need to do now is replace the last comma with a semicolon using
_$r;_ and insert _extern void_ at the beginning of the line using _I_.
@@ -63,41 +63,41 @@ _$r;_ and insert _extern void_ at the beginning of the line using _I_.
Starting with
INTNOERR 0
{: .prettyprint}
:::nasm
INTNOERR 0
I used
I used
qayypcwINTNOERR<esc>$<ctrl>a0q
qsyypcwINTERR<esc>$<ctrl>a0q
dd6@a@s@a5@s33@a
qayypcwINTNOERR<esc>$<ctrl>a0q
qsyypcwINTERR<esc>$<ctrl>a0q
dd6@a@s@a5@s33@a
and ended up with
INTNOERR 0
INTNOERR 1
INTNOERR 2
INTNOERR 3
INTNOERR 4
INTNOERR 5
INTNOERR 6
INTNOERR 7
INTERR 8
INTNOERR 9
INTERR 10
INTERR 11
INTERR 12
INTERR 13
INTERR 14
INTNOERR 15
...
INTNOERR 45
INTNOERR 46
{: .prettyprint}
:::nasm
INTNOERR 0
INTNOERR 1
INTNOERR 2
INTNOERR 3
INTNOERR 4
INTNOERR 5
INTNOERR 6
INTNOERR 7
INTERR 8
INTNOERR 9
INTERR 10
INTERR 11
INTERR 12
INTERR 13
INTERR 14
INTNOERR 15
...
INTNOERR 45
INTNOERR 46
I love vim!
###Application
###Application
So where did I use this? I've been writing some code for handling interrupts in
the os. You can find it in Git commit
[26dd8e4c75](https://github.com/thomasloven/os5/tree/26dd8e4c7507b66e4f94bf2c4e980265c6f0a20b).