andre/cosmopolitan
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Make more improvements

Browse Source 
This change includes many bug fixes, for the NT polyfills, strings,
memory, boot, and math libraries which were discovered by adding more
tools for recreational programming, such as PC emulation. Lemon has also
been vendored because it works so well at parsing languages.
This commit is contained in:
Justine Tunney
2020-09-28 01:13:56 -07:00
parent 416fd86676
commit 23d333c090
201 changed files with 14558 additions and 3082 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
ape/ape.S
View File

@ -1051,7 +1051,6 @@ realmodeloader:
mov %sp,%bp
call rlinit
call sinit4
mov $VIDYA_MODE,%di
call vinit
mov %es,XLM(VIDEO_POSITION_FAR_POINTER)
mov %ax,XLM(VIDEO_POSITION_FAR_POINTER)+2
@ -1291,32 +1290,16 @@ sputc: push %ax
ret
.endfn sputc,globl
/ Asks BIOS to initialize MDA/CGA display w/o cursor/blinking.
/ Asks BIOS to initialize Monochrome Display Adapter.
/
/ @param dil video mode
/ @return es:ax start of video page
/ @mode real
vinit: push %bp
mov %sp,%bp
push %bx
bbmov VIDYA_ADDR_CGA>>4,%ax,%ah,%al
vinit: push $7
pop %ax
int $VIDYA_SERVICE
bbmov VIDYA_ADDR_MDA>>4,%ax,%ah,%al
mov %ax,%es
mov %di,%ax
cmp $VIDYA_MODE_CGA,%al
je 1f
xor %ch,%ch # aka movesdi VIDYA_ADDR_MDA
1: xor %di,%di
bbmov VIDYA_SET_MODE,%ax,%ah,%al
int $VIDYA_SERVICE
bbmov VIDYA_SET_CURSOR,,%ah,%al
bbmov VIDYA_SET_CURSOR_NONE,,%ch,%cl # since we don't support it
int $VIDYA_SERVICE
bbmov VIDYA_SET_BLINKING,,%ah,%al # ← cargo culting (ega?)
bbmov VIDYA_SET_BLINKING_NONE,,%bh,%bl
int $VIDYA_SERVICE
xor %ax,%ax
pop %bx
pop %bp
ret
.endfn vinit,globl