Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-07 20:50:14 +01:00
Code Issues Actions 27 Packages Projects Releases Wiki Activity

py: Implement "it" instruction for inline Thumb assembler.

Browse Source
This commit is contained in:
Damien George
2015-02-16 17:46:49 +00:00
parent 3d7bf5d4b1
commit 42495392da
2 changed files with 65 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
py/asmthumb.h
View File

@@ -84,6 +84,7 @@ void asm_thumb_data(asm_thumb_t* as, uint bytesize, uint val);
// argument order follows ARM, in general dest is first
// note there is a difference between movw and mov.w, and many others!
#define ASM_THUMB_OP_IT (0xbf00)
#define ASM_THUMB_OP_ITE_EQ (0xbf0c)
#define ASM_THUMB_OP_ITE_CS (0xbf2c)
#define ASM_THUMB_OP_ITE_MI (0xbf4c)
@@ -100,6 +101,9 @@ void asm_thumb_data(asm_thumb_t* as, uint bytesize, uint val);
void asm_thumb_op16(asm_thumb_t *as, uint op);
void asm_thumb_op32(asm_thumb_t *as, uint op1, uint op2);
static inline void asm_thumb_it_cc(asm_thumb_t *as, uint cc, uint mask)
{ asm_thumb_op16(as, ASM_THUMB_OP_IT | (cc << 4) | mask); }
// FORMAT 2: add/subtract
#define ASM_THUMB_FORMAT_2_ADD (0x1800)