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Apply shorthand Assembler macros

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This commit is contained in:
Scott Lahteine
2018-05-08 05:10:27 -05:00
parent d1b619be52
commit 0436e16fb2
9 changed files with 864 additions and 861 deletions
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284
Marlin/src/HAL/HAL_DUE/HAL_spi_Due.cpp
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@@ -77,10 +77,10 @@
__asm__ __volatile__(
".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
"loop%=:" "\n\t"
" subs %[cnt],#1" "\n\t"
EXTRA_NOP_CYCLES "\n\t"
" bne loop%=" "\n\t"
L("loop%=")
A("subs %[cnt],#1")
A(EXTRA_NOP_CYCLES)
A("bne loop%=")
: [cnt]"+r"(cy) // output: +r means input+output
: // input:
: "cc" // clobbers:
@@ -141,54 +141,54 @@
".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
/* Bit 7 */
" ubfx %[idx],%[txval],#7,#1" "\n\t" /* Place bit 7 in bit 0 of idx*/
A("ubfx %[idx],%[txval],#7,#1") /* Place bit 7 in bit 0 of idx*/
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#6,#1" "\n\t" /* Place bit 6 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#6,#1") /* Place bit 6 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 6 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#5,#1" "\n\t" /* Place bit 5 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#5,#1") /* Place bit 5 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 5 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#4,#1" "\n\t" /* Place bit 4 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#4,#1") /* Place bit 4 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 4 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#3,#1" "\n\t" /* Place bit 3 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#3,#1") /* Place bit 3 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 3 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#2,#1" "\n\t" /* Place bit 2 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#2,#1") /* Place bit 2 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 2 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#1,#1" "\n\t" /* Place bit 1 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#1,#1") /* Place bit 1 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 1 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[idx],%[txval],#0,#1" "\n\t" /* Place bit 0 in bit 0 of idx*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[idx],%[txval],#0,#1") /* Place bit 0 in bit 0 of idx*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 0 */
" str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" nop" "\n\t" /* Result will be 0 */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[idx],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("nop") /* Result will be 0 */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
: [idx]"+r"( idx )
: [txval]"r"( bout ) ,
@@ -222,52 +222,52 @@
".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
/* bit 7 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#7,#1" "\n\t" /* Store read bit as the bit 7 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#7,#1") /* Store read bit as the bit 7 */
/* bit 6 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#6,#1" "\n\t" /* Store read bit as the bit 6 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#6,#1") /* Store read bit as the bit 6 */
/* bit 5 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#5,#1" "\n\t" /* Store read bit as the bit 5 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#5,#1") /* Store read bit as the bit 5 */
/* bit 4 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#4,#1" "\n\t" /* Store read bit as the bit 4 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#4,#1") /* Store read bit as the bit 4 */
/* bit 3 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#3,#1" "\n\t" /* Store read bit as the bit 3 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#3,#1") /* Store read bit as the bit 3 */
/* bit 2 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#2,#1" "\n\t" /* Store read bit as the bit 2 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#2,#1") /* Store read bit as the bit 2 */
/* bit 1 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#1,#1" "\n\t" /* Store read bit as the bit 1 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#1,#1") /* Store read bit as the bit 1 */
/* bit 0 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#0,#1" "\n\t" /* Store read bit as the bit 0 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#0,#1") /* Store read bit as the bit 0 */
: [bin]"+r"(bin),
[work]"+r"(work)
@@ -335,60 +335,60 @@
__asm__ __volatile__(
".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
" loop%=:" "\n\t"
" ldrb.w %[txval], [%[ptr]], #1" "\n\t" /* Load value to send, increment buffer */
" mvn %[txval],%[txval]" "\n\t" /* Negate value */
L("loop%=")
A("ldrb.w %[txval], [%[ptr]], #1") /* Load value to send, increment buffer */
A("mvn %[txval],%[txval]") /* Negate value */
/* Bit 7 */
" ubfx %[work],%[txval],#7,#1" "\n\t" /* Place bit 7 in bit 0 of work*/
A("ubfx %[work],%[txval],#7,#1") /* Place bit 7 in bit 0 of work*/
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#6,#1" "\n\t" /* Place bit 6 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#6,#1") /* Place bit 6 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 6 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#5,#1" "\n\t" /* Place bit 5 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#5,#1") /* Place bit 5 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 5 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#4,#1" "\n\t" /* Place bit 4 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#4,#1") /* Place bit 4 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 4 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#3,#1" "\n\t" /* Place bit 3 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#3,#1") /* Place bit 3 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 3 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#2,#1" "\n\t" /* Place bit 2 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#2,#1") /* Place bit 2 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 2 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#1,#1" "\n\t" /* Place bit 1 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#1,#1") /* Place bit 1 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 1 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ubfx %[work],%[txval],#0,#1" "\n\t" /* Place bit 0 in bit 0 of work*/
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ubfx %[work],%[txval],#0,#1") /* Place bit 0 in bit 0 of work*/
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
/* Bit 0 */
" str %[mosi_mask],[%[mosi_port], %[work],LSL #2]" "\n\t" /* Access the proper SODR or CODR registers based on that bit */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" subs %[todo],#1" "\n\t" /* Decrement count of pending words to send, update status */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bne.n loop%=" "\n\t" /* Repeat until done */
A("str %[mosi_mask],[%[mosi_port], %[work],LSL #2]") /* Access the proper SODR or CODR registers based on that bit */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("subs %[todo],#1") /* Decrement count of pending words to send, update status */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bne.n loop%=") /* Repeat until done */
: [ptr]"+r" ( ptr ) ,
[todo]"+r" ( todo ) ,
@@ -413,59 +413,59 @@
__asm__ __volatile__(
".syntax unified" "\n\t" // is to prevent CM0,CM1 non-unified syntax
" loop%=:" "\n\t"
L("loop%=")
/* bit 7 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#7,#1" "\n\t" /* Store read bit as the bit 7 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#7,#1") /* Store read bit as the bit 7 */
/* bit 6 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#6,#1" "\n\t" /* Store read bit as the bit 6 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#6,#1") /* Store read bit as the bit 6 */
/* bit 5 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#5,#1" "\n\t" /* Store read bit as the bit 5 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#5,#1") /* Store read bit as the bit 5 */
/* bit 4 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#4,#1" "\n\t" /* Store read bit as the bit 4 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#4,#1") /* Store read bit as the bit 4 */
/* bit 3 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#3,#1" "\n\t" /* Store read bit as the bit 3 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#3,#1") /* Store read bit as the bit 3 */
/* bit 2 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#2,#1" "\n\t" /* Store read bit as the bit 2 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#2,#1") /* Store read bit as the bit 2 */
/* bit 1 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#1,#1" "\n\t" /* Store read bit as the bit 1 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#1,#1") /* Store read bit as the bit 1 */
/* bit 0 */
" str %[sck_mask],[%[sck_port]]" "\n\t" /* SODR */
" ldr %[work],[%[bitband_miso_port]]" "\n\t" /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
" str %[sck_mask],[%[sck_port],#0x4]" "\n\t" /* CODR */
" bfi %[bin],%[work],#0,#1" "\n\t" /* Store read bit as the bit 0 */
A("str %[sck_mask],[%[sck_port]]") /* SODR */
A("ldr %[work],[%[bitband_miso_port]]") /* PDSR on bitband area for required bit: work will be 1 or 0 based on port */
A("str %[sck_mask],[%[sck_port],#0x4]") /* CODR */
A("bfi %[bin],%[work],#0,#1") /* Store read bit as the bit 0 */
" subs %[todo],#1" "\n\t" /* Decrement count of pending words to send, update status */
" strb.w %[bin], [%[ptr]], #1" "\n\t" /* Store read value into buffer, increment buffer pointer */
" bne.n loop%=" "\n\t" /* Repeat until done */
A("subs %[todo],#1") /* Decrement count of pending words to send, update status */
A("strb.w %[bin], [%[ptr]], #1") /* Store read value into buffer, increment buffer pointer */
A("bne.n loop%=") /* Repeat until done */
: [ptr]"+r"(ptr),
[todo]"+r"(todo),