Kevin Leong / Mbed 2 deprecated Program3

Fun LED stuff

Dependencies:   LCD_DISCO_F429ZI mbed TS_DISCO_F429ZI BSP_DISCO_F429ZI

Program3_F20_Leong.s@4:69f1e5fa2cb6, 2020-11-16 (annotated)

Committer:
kkleong
Date:
Mon Nov 16 15:02:45 2020 +0000
Revision:
4:69f1e5fa2cb6
Parent:
2:1be4e7457636 
Newe redBlue

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kkleong 0:e579c6f35abf 1 AREA Program3, CODE, READONLY
kkleong 0:e579c6f35abf 2 GLOBAL getQuad
kkleong 0:e579c6f35abf 3 ; uint32_t getQuad ( uint16_t x, uint16_t y)
kkleong 0:e579c6f35abf 4 getQuad CMP R0, #125
kkleong 0:e579c6f35abf 5 MOVLT R0, #1
kkleong 0:e579c6f35abf 6 MOVGT R0, #2
kkleong 0:e579c6f35abf 7 CMP R1, #160
kkleong 0:e579c6f35abf 8 ADDGT R0, R0, #2
kkleong 0:e579c6f35abf 9 BX LR
kkleong 0:e579c6f35abf 10
kkleong 0:e579c6f35abf 11 GLOBAL swapRedBlue
kkleong 0:e579c6f35abf 12 ; uint32_t swapRedBlue ( uint32_t color)
kkleong 4:69f1e5fa2cb6 13 swapRedBlue AND R1, R0, #0x00FF0000
kkleong 4:69f1e5fa2cb6 14 ASR R1, R1, #16
kkleong 0:e579c6f35abf 15
kkleong 4:69f1e5fa2cb6 16 LDR R5, =0x000000FF
kkleong 4:69f1e5fa2cb6 17 AND R2, R0, R5
kkleong 4:69f1e5fa2cb6 18 LSL R2, R2, #16
kkleong 0:e579c6f35abf 19
kkleong 4:69f1e5fa2cb6 20 LDR R4, =0xFF00FF00
kkleong 4:69f1e5fa2cb6 21 AND R3, R0, R4
kkleong 0:e579c6f35abf 22
kkleong 4:69f1e5fa2cb6 23 ORR R0, R1, R2
kkleong 4:69f1e5fa2cb6 24 ORR R0, R0, R3
kkleong 0:e579c6f35abf 25
kkleong 0:e579c6f35abf 26 GLOBAL toggleAlphaMSB
kkleong 0:e579c6f35abf 27 ; uint32_t toggleAlphaMSB ( uint32_t color)
kkleong 0:e579c6f35abf 28 toggleAlphaMSB MVN R1, R0
kkleong 0:e579c6f35abf 29 LSR R1, R1, #24
kkleong 0:e579c6f35abf 30 LSL R1, R1, #24
kkleong 0:e579c6f35abf 31 LSL R0, R0, #8
kkleong 0:e579c6f35abf 32 LSR R0, R0, #8
kkleong 0:e579c6f35abf 33 ORR R0, R0, R1
kkleong 0:e579c6f35abf 34
kkleong 0:e579c6f35abf 35 BX LR
kkleong 0:e579c6f35abf 36
kkleong 0:e579c6f35abf 37 GLOBAL rotateRGBBytes
kkleong 0:e579c6f35abf 38 ; uint32_t rotateRGBBytes ( uint32_t color)
kkleong 2:1be4e7457636 39 rotateRGBBytes MOV R1, R0
kkleong 2:1be4e7457636 40 MOV R2, R0
kkleong 2:1be4e7457636 41 MOV R3, R0
kkleong 2:1be4e7457636 42
kkleong 2:1be4e7457636 43 LSR R1, R1, #24
kkleong 2:1be4e7457636 44 LSL R1, R1, #24
kkleong 2:1be4e7457636 45
kkleong 2:1be4e7457636 46 LSL R2, #8
kkleong 2:1be4e7457636 47 LSR R2, #16
kkleong 2:1be4e7457636 48
kkleong 2:1be4e7457636 49 LSL R3, #24
kkleong 2:1be4e7457636 50 LSR R3, #8
kkleong 2:1be4e7457636 51
kkleong 2:1be4e7457636 52 ORR R0, R1, R2
kkleong 2:1be4e7457636 53 ORR R0, R0, R3
kkleong 0:e579c6f35abf 54 BX LR
kkleong 0:e579c6f35abf 55
kkleong 0:e579c6f35abf 56 GLOBAL setRGBBits
kkleong 0:e579c6f35abf 57 ; uint32_t setRGBBits ( uint32_t color, uint8_t n)
kkleong 0:e579c6f35abf 58 setRGBBits
kkleong 0:e579c6f35abf 59 BX LR
kkleong 0:e579c6f35abf 60
kkleong 0:e579c6f35abf 61
kkleong 0:e579c6f35abf 62 END