userland: add assembly support

Move arm assembly cheat here, and start some work on x86 cheat as well.
This commit is contained in:
Ciro Santilli 六四事件 法轮功
2019-03-22 00:00:00 +00:00
parent 4943c9ed2e
commit 287c83f3f9
117 changed files with 3870 additions and 547 deletions

19
userland/arch/arm/tst.S Normal file
View File

@@ -0,0 +1,19 @@
/* Test. Same as ands, but don't store the result, just update flags. */
#include "common.h"
ENTRY
/* 0x0F && 0xF0 == 0x00, so beq. */
mov r0, 0x0F
tst r0, 0xF0
ASSERT(beq)
/* bne */
mov r0, 0xFF
tst r0, 0x0F
ASSERT(bne)
# r0 was not modified.
ASSERT_EQ(r0, 0xFF)
EXIT