📄 fillrectangle.asm
字号:
AREA |.text|, CODE, ARM
EXPORT fill_rectangle
;r0-r3为参数vp,w,h,stride
;sp+0x10为参数val,sp+0x14为参数size
;r0存w,r5存stride
|fill_rectangle| PROC
;程序入口
stmdb sp!, {r4 - r6, lr}
|$MAINPROGRAM|
;程序段
;w *= size; ;stride *= size;
mov r6, r0
ldr r4, [sp, #0x14]
mul r0, r1, r4
mul r5, r3, r4
;此时r0=w,r5=stride,r6=vp
|$LWH224|
;程序段
;if(w==2 && h==2)
cmp r0, #2
bne |$LWH4124|
cmp r2, #2
bne |$LWH24|
;程序段
;*(uint16_t*)(p + 0)=*(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;
cmp r4, #4
bne |$LWH22SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
strh r4, [r0]
strh r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH22SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA1|
mul r0, r4, r2
mov r4, r0
mov r0, r6
strh r4, [r0]
strh r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH24|
;程序段
;else if(w==2 && h==4)
cmp r2, #4
bne |$RETURN|
;程序段
;*(uint16_t*)(p + 0*stride)=
;*(uint16_t*)(p + 1*stride)=
;*(uint16_t*)(p + 2*stride)=
;*(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;
cmp r4, #4
bne |$LWH24SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
strh r4, [r0]
strh r4, [r0, +r5]!
strh r4, [r0, +r5]!
strh r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH24SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA1|
mul r0, r4, r2
mov r4, r0
mov r0, r6
strh r4, [r0]
strh r4, [r0, +r5]
strh r4, [r0, +r5]!
strh r4, [r0, +r5]!
strh r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH4124|
;程序段
;else if(w==4 && h==1)
cmp r0, #4
bne |$LWH8124|
cmp r2, #1
bne |$LWH424|
;程序段
;*(uint32_t*)(p + 0*stride)= size==4 ? val : val*0x01010101;
cmp r4, #4
bne |$LWH41SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
ldmia sp!, {r4 - r6, pc}
|$LWH41SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r4, r2
mov r4, r0
mov r0, r6
str r4, [r0]
ldmia sp!, {r4 - r6, pc}
|$LWH424|
;程序段
;else if(w==4 && h==2)
cmp r2, #2
bne |$LWH44|
;程序段
;*(uint32_t*)(p + 0*stride)=
;*(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;
cmp r4, #4
bne |$LWH42SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH42SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r4, r2
mov r4, r0
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH44|
;程序段
;else if(w==4 && h==4)
cmp r2, #4
bne |$RETURN|
;程序段
;*(uint32_t*)(p + 0*stride)=
;*(uint32_t*)(p + 1*stride)=
;*(uint32_t*)(p + 2*stride)=
;*(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;
cmp r4, #4
bne |$LWH44SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH44SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r4, r2
mov r4, r0
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH8124|
;程序段
;else if(w==8 && h==1)
cmp r0, #8
bne |$LWH1624|
cmp r2, #1
bne |$LWH824|
;程序段
;*(uint32_t*)(p + 0)=
;*(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;
cmp r4, #4
bne |$LWH81SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, #4]
ldmia sp!, {r4 - r6, pc}
|$LWH81SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r4, r2
mov r4, r0
mov r0, r6
str r4, [r0]
str r4, [r0, #4]
ldmia sp!, {r4 - r6, pc}
|$LWH824|
;程序段
;else if(w==8 && h==2)
cmp r2, #2
bne |$LWH84|
;程序段
;*(uint32_t*)(p + 0 + 0*stride)=
;*(uint32_t*)(p + 4 + 0*stride)=
;*(uint32_t*)(p + 0 + 1*stride)=
;*(uint32_t*)(p + 4 + 1*stride)= size==4 ? val : val*0x01010101;
cmp r4, #4
bne |$LWH82SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, #4]
add r0, r0, r5
str r4, [r0]
str r4, [r0, #4]
ldmia sp!, {r4 - r6, pc}
|$LWH82SIZEN4|
ldr r4, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r4, r2
mov r4, r0
mov r0, r6
str r4, [r0]
str r4, [r0, #4]
add r0, r0, r5
str r4, [r0]
str r4, [r0, #4]
ldmia sp!, {r4 - r6, pc}
|$LWH84|
;程序段
;else if(w==8 && h==4)
cmp r2, #4
bne |$RETURN|
;程序段
;*(uint64_t*)(p + 0*stride)=
;*(uint64_t*)(p + 1*stride)=
;*(uint64_t*)(p + 2*stride)=
;*(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
cmp r4, #4
bne |$LWH84SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #4
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH84SIZEN4|
ldr r3, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r3, r2
umull r2, r3, r1, r3
add r3, r0, r3
mov r0, r6
str r2, [r0]
str r2, [r0, +r5]!
str r2, [r0, +r5]!
str r2, [r0, +r5]
mov r0, r6
add r0, r0, #4
str r3, [r0]
str r3, [r0, +r5]!
str r3, [r0, +r5]!
str r3, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH1624|
;程序段
;else if(w==16 && h==2)
cmp r0, #16
bne |$RETURN|
cmp r2, #2
bne |$LWH164|
;程序段
;*(uint64_t*)(p + 0+0*stride)=
;*(uint64_t*)(p + 8+0*stride)=
;*(uint64_t*)(p + 0+1*stride)=
;*(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
cmp r4, #4
bne |$LWH162SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #4
str r4, [r0]
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #8
str r4, [r0]
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #12
str r4, [r0]
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH162SIZEN4|
ldr r3, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r3, r2
umull r2, r3, r1, r3
add r3, r0, r3
mov r0, r6
str r2, [r0]
str r2, [r0, +r5]
mov r0, r6
add r0, r0, #4
str r3, [r0]
str r3, [r0, +r5]
mov r0, r6
add r0, r0, #8
str r2, [r0]
str r2, [r0, +r5]
mov r0, r6
add r0, r0, #12
str r3, [r0]
str r3, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH164|
;程序段
;else if(w==16 && h==4)
cmp r2, #4
bne |$RETURN|
;程序段
;*(uint64_t*)(p + 0+0*stride)=
;*(uint64_t*)(p + 8+0*stride)=
;*(uint64_t*)(p + 0+1*stride)=
;*(uint64_t*)(p + 8+1*stride)=
;*(uint64_t*)(p + 0+2*stride)=
;*(uint64_t*)(p + 8+2*stride)=
;*(uint64_t*)(p + 0+3*stride)=
;*(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
cmp r4, #4
bne |$LWH164SIZEN4|
ldr r4, [sp, #0x10]
mov r0, r6
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #4
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #8
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
mov r0, r6
add r0, r0, #12
str r4, [r0]
str r4, [r0, +r5]!
str r4, [r0, +r5]!
str r4, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$LWH164SIZEN4|
ldr r3, [sp, #0x10]
ldr r2, |$DATA2|
mul r0, r3, r2
umull r2, r3, r1, r3
add r3, r0, r3
mov r0, r6
str r2, [r0]
str r2, [r0, +r5]!
str r2, [r0, +r5]!
str r2, [r0, +r5]
mov r0, r6
add r0, r0, #4
str r3, [r0]
str r3, [r0, +r5]!
str r3, [r0, +r5]!
str r3, [r0, +r5]
mov r0, r6
add r0, r0, #8
str r2, [r0]
str r2, [r0, +r5]!
str r2, [r0, +r5]!
str r2, [r0, +r5]
mov r0, r6
add r0, r0, #12
str r3, [r0]
str r3, [r0, +r5]!
str r3, [r0, +r5]!
str r3, [r0, +r5]
ldmia sp!, {r4 - r6, pc}
|$RETURN|
ldmia sp!, {r4 - r6, pc}
|$DATA1|
DCD 0x0101
|$DATA2|
DCD 0x01010101
END
ENDP ; |fill_rectangle|⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -