blob: c554d20e3852a6cf52b5a5f5d5aaae19d14eb6d1 [file] [log] [blame]
/* Copyright 2015, Kenneth MacKay. Licensed under the BSD 2-clause license. */
#ifndef _UECC_ASM_ARM_MULT_SQUARE_H_
#define _UECC_ASM_ARM_MULT_SQUARE_H_
#define FAST_MULT_ASM_5 \
"push {r3} \n\t" \
"ldmia r2!, {r3, r4, r5, r6, r7} \n\t" \
"push {r2} \n\t" \
\
"ldr r2, [r1], #4 \n\t" \
"umull r8, r9, r3, r2 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r4, r2 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r5, r2 \n\t" \
"mov r12, #0 \n\t" \
"umaal r11, r12, r6, r2 \n\t" \
"mov r14, #0 \n\t" \
"umaal r12, r14, r7, r2 \n\t" \
\
"ldr r2, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r3, r2 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r4, r2 \n\t" \
"umaal r10, r11, r5, r2 \n\t" \
"umaal r11, r12, r6, r2 \n\t" \
"umaal r12, r14, r7, r2 \n\t" \
\
"ldr r2, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r3, r2 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r4, r2 \n\t" \
"umaal r10, r11, r5, r2 \n\t" \
"umaal r11, r12, r6, r2 \n\t" \
"umaal r12, r14, r7, r2 \n\t" \
\
"ldr r2, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r3, r2 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r4, r2 \n\t" \
"umaal r10, r11, r5, r2 \n\t" \
"umaal r11, r12, r6, r2 \n\t" \
"umaal r12, r14, r7, r2 \n\t" \
\
"ldr r2, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r3, r2 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r4, r2 \n\t" \
"umaal r10, r11, r5, r2 \n\t" \
"umaal r11, r12, r6, r2 \n\t" \
"umaal r12, r14, r7, r2 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t" \
"str r12, [r0], #4 \n\t" \
"str r14, [r0], #4 \n\t" \
\
"pop {r2, r3} \n\t"
#define FAST_MULT_ASM_5_TO_6 \
"cmp r3, #5 \n\t" \
"beq 1f \n\t" \
\
/* r4 = left high */ \
"ldr r4, [r1] \n\t" \
\
"sub r0, #20 \n\t" \
"sub r1, #20 \n\t" \
"sub r2, #20 \n\t" \
\
/* Do right side */ \
"ldr r14, [r2], #4 \n\t" \
"mov r5, #0 \n\t" \
"ldr r6, [r0], #4 \n\t" \
"umaal r5, r6, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r7, [r0], #4 \n\t" \
"umaal r6, r7, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r8, [r0], #4 \n\t" \
"umaal r7, r8, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r9, [r0], #4 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r10, [r0], #4 \n\t" \
"umaal r9, r10, r4, r14 \n\t" \
"sub r0, #20 \n\t" \
\
/* r4 = right high */ \
"ldr r4, [r2], #4 \n\t" \
\
/* Do left side */ \
"ldr r14, [r1], #4 \n\t" \
"mov r12, #0 \n\t" \
"umaal r12, r5, r4, r14 \n\t" \
"str r12, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r5, r6, r4, r14 \n\t" \
"str r5, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r6, r7, r4, r14 \n\t" \
"str r6, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r7, r8, r4, r14 \n\t" \
"str r7, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"umaal r9, r10, r4, r14 \n\t" \
"stmia r0!, {r9, r10} \n\t"
#define FAST_MULT_ASM_6 \
"ldmia r2!, {r4, r5, r6} \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"umull r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t" \
\
"sub r0, #24 \n\t" \
"sub r1, #24 \n\t" \
"ldmia r2!, {r4, r5, r6} \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"mov r9, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t"
#define FAST_MULT_ASM_6_TO_7 \
"cmp r3, #6 \n\t" \
"beq 1f \n\t" \
\
/* r4 = left high */ \
"ldr r4, [r1] \n\t" \
\
"sub r0, #24 \n\t" \
"sub r1, #24 \n\t" \
"sub r2, #24 \n\t" \
\
/* Do right side */ \
"ldr r14, [r2], #4 \n\t" \
"mov r5, #0 \n\t" \
"ldr r6, [r0], #4 \n\t" \
"umaal r5, r6, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r7, [r0], #4 \n\t" \
"umaal r6, r7, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r8, [r0], #4 \n\t" \
"umaal r7, r8, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r9, [r0], #4 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r10, [r0], #4 \n\t" \
"umaal r9, r10, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r11, [r0], #4 \n\t" \
"umaal r10, r11, r4, r14 \n\t" \
"sub r0, #24 \n\t" \
\
/* r4 = right high */ \
"ldr r4, [r2], #4 \n\t" \
\
/* Do left side */ \
"ldr r14, [r1], #4 \n\t" \
"mov r12, #0 \n\t" \
"umaal r12, r5, r4, r14 \n\t" \
"str r12, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r5, r6, r4, r14 \n\t" \
"str r5, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r6, r7, r4, r14 \n\t" \
"str r6, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r7, r8, r4, r14 \n\t" \
"str r7, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r9, r10, r4, r14 \n\t" \
"str r9, [r0], #4 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"umaal r10, r11, r4, r14 \n\t" \
"stmia r0!, {r10, r11} \n\t"
#define FAST_MULT_ASM_7 \
"ldmia r2!, {r4, r5, r6, r7} \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"umull r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"mov r12, #0 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t" \
"str r12, [r0], #4 \n\t" \
\
"sub r0, #28 \n\t" \
"sub r1, #28 \n\t" \
"ldmia r2!, {r4, r5, r6} \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"mov r9, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t"
#define FAST_MULT_ASM_7_TO_8 \
"cmp r3, #7 \n\t" \
"beq 1f \n\t" \
"push {r3} \n\t" \
\
/* r4 = left high */ \
"ldr r4, [r1] \n\t" \
\
"sub r0, #28 \n\t" \
"sub r1, #28 \n\t" \
"sub r2, #28 \n\t" \
\
/* Do right side */ \
"ldr r14, [r2], #4 \n\t" \
"mov r5, #0 \n\t" \
"ldr r6, [r0], #4 \n\t" \
"umaal r5, r6, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r7, [r0], #4 \n\t" \
"umaal r6, r7, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r8, [r0], #4 \n\t" \
"umaal r7, r8, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r9, [r0], #4 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r10, [r0], #4 \n\t" \
"umaal r9, r10, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r11, [r0], #4 \n\t" \
"umaal r10, r11, r4, r14 \n\t" \
"ldr r14, [r2], #4 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"umaal r11, r12, r4, r14 \n\t" \
"sub r0, #28 \n\t" \
\
/* r4 = right high */ \
"ldr r4, [r2], #4 \n\t" \
\
/* Do left side */ \
"ldr r14, [r1], #4 \n\t" \
"mov r3, #0 \n\t" \
"umaal r3, r5, r4, r14 \n\t" \
"str r3, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r5, r6, r4, r14 \n\t" \
"str r5, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r6, r7, r4, r14 \n\t" \
"str r6, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r7, r8, r4, r14 \n\t" \
"str r7, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r9, r10, r4, r14 \n\t" \
"str r9, [r0], #4 \n\t" \
"ldr r14, [r1], #4 \n\t" \
"umaal r10, r11, r4, r14 \n\t" \
"str r10, [r0], #4 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"umaal r11, r12, r4, r14 \n\t" \
"stmia r0!, {r11, r12} \n\t" \
"pop {r3} \n\t"
#define FAST_MULT_ASM_8 \
"ldmia r2!, {r4, r5, r6, r7} \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"umull r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"mov r12, #0 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"mov r8, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t" \
"str r12, [r0], #4 \n\t" \
\
"sub r0, #32 \n\t" \
"sub r1, #32 \n\t" \
"ldmia r2!, {r4, r5, r6, r7} \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"mov r9, #0 \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"mov r11, #0 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"mov r12, #0 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"ldr r14, [r1], #4 \n\t" \
"ldr r8, [r0] \n\t" \
"umaal r8, r9, r4, r14 \n\t" \
"str r8, [r0], #4 \n\t" \
"umaal r9, r10, r5, r14 \n\t" \
"umaal r10, r11, r6, r14 \n\t" \
"umaal r11, r12, r7, r14 \n\t" \
\
"str r9, [r0], #4 \n\t" \
"str r10, [r0], #4 \n\t" \
"str r11, [r0], #4 \n\t" \
"str r12, [r0], #4 \n\t"
#define FAST_SQUARE_ASM_5 \
"ldmia r1!, {r9,r10,r11,r12,r14} \n\t" \
"push {r1, r2} \n\t" \
\
"umull r1, r2, r10, r9 \n\t" \
"mov r3, #0 \n\t" \
"umaal r2, r3, r11, r9 \n\t" \
"mov r4, #0 \n\t" \
"umaal r3, r4, r12, r9 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r14, r9 \n\t" \
\
"mov r6, #0 \n\t" \
"umaal r6, r3, r11, r10 \n\t" \
"umaal r3, r4, r12, r10 \n\t" \
"adds r1, r1, r1 \n\t" \
"adcs r2, r2, r2 \n\t" \
"adcs r6, r6, r6 \n\t" \
"adcs r3, r3, r3 \n\t" \
\
"umull r7, r8, r9, r9 \n\t" \
/* Store carry in r9 */ \
"mov r9, #0 \n\t" \
"adc r9, r9, #0 \n\t" \
"adds r8, r8, r1 \n\t" \
"stmia r0!, {r7,r8} \n\t" \
\
"umull r7, r8, r10, r10 \n\t" \
"adcs r7, r7, r2 \n\t" \
"adcs r8, r8, r6 \n\t" \
"stmia r0!, {r7,r8} \n\t" \
\
"umaal r4, r5, r14, r10 \n\t" \
/* Store carry in r10 */ \
"mov r10, #0 \n\t" \
"adc r10, r10, #0 \n\t" \
\
"mov r1, #0 \n\t" \
"umaal r1, r4, r12, r11 \n\t" \
"umaal r4, r5, r14, r11 \n\t" \
\
"mov r2, #0 \n\t" \
"umaal r2, r5, r14, r12 \n\t" \
/* Load carry from r9 */ \
"lsrs r9, #1 \n\t" \
"adcs r1, r1, r1 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r2, r2, r2 \n\t" \
"adcs r5, r5, r5 \n\t" \
/* r9 is 0 now */ \
"adc r9, r9, #0 \n\t" \
\
/* Use carry from r10 */ \
"umaal r3, r10, r11, r11 \n\t" \
"adds r10, r10, r1 \n\t" \
"stmia r0!, {r3,r10} \n\t" \
\
"umull r6, r10, r12, r12 \n\t" \
"adcs r6, r6, r4 \n\t" \
"adcs r10, r10, r2 \n\t" \
"stmia r0!, {r6,r10} \n\t" \
\
"umull r6, r10, r14, r14 \n\t" \
"adcs r6, r6, r5 \n\t" \
"adcs r10, r10, r9 \n\t" \
"stmia r0!, {r6,r10} \n\t" \
"pop {r1, r2} \n\t"
#define FAST_SQUARE_ASM_5_TO_6 \
"cmp r2, #5 \n\t" \
"beq 1f \n\t" \
\
"sub r0, #20 \n\t" \
"sub r1, #20 \n\t" \
\
/* Do off-center multiplication */ \
"ldmia r1!, {r5,r6,r7,r8,r9,r14} \n\t" \
"umull r3, r4, r5, r14 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r6, r14 \n\t" \
"mov r6, #0 \n\t" \
"umaal r5, r6, r7, r14 \n\t" \
"mov r7, #0 \n\t" \
"umaal r6, r7, r8, r14 \n\t" \
"mov r8, #0 \n\t" \
"umaal r7, r8, r9, r14 \n\t" \
\
/* Multiply by 2 */ \
"mov r9, #0 \n\t" \
"adds r3, r3, r3 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r5, r5, r5 \n\t" \
"adcs r6, r6, r6 \n\t" \
"adcs r7, r7, r7 \n\t" \
"adcs r8, r8, r8 \n\t" \
"adcs r9, r9, #0 \n\t" \
\
/* Add into previous */ \
"ldr r12, [r0], #4 \n\t" \
"adds r3, r3, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r4, r4, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r5, r5, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r6, r6, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r7, r7, r12 \n\t" \
"adcs r8, r8, #0 \n\t" \
"adcs r9, r9, #0 \n\t" \
"sub r0, #20 \n\t" \
\
/* Perform center multiplication */ \
"umlal r8, r9, r14, r14 \n\t" \
"stmia r0!, {r3,r4,r5,r6,r7,r8,r9} \n\t"
#define FAST_SQUARE_ASM_6 \
"ldmia r1!, {r8,r9,r10,r11,r12,r14} \n\t" \
"push {r1, r2} \n\t" \
\
"umull r1, r2, r9, r8 \n\t" \
"mov r3, #0 \n\t" \
"umaal r2, r3, r10, r8 \n\t" \
"mov r4, #0 \n\t" \
"umaal r3, r4, r11, r8 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r12, r8 \n\t" \
"mov r6, #0 \n\t" \
"umaal r5, r6, r14, r8 \n\t" \
\
"mov r7, #0 \n\t" \
"umaal r7, r3, r10, r9 \n\t" \
"umaal r3, r4, r11, r9 \n\t" \
"umaal r4, r5, r12, r9 \n\t" \
"push {r4, r5} \n\t" \
"adds r1, r1, r1 \n\t" \
"adcs r2, r2, r2 \n\t" \
"adcs r7, r7, r7 \n\t" \
"adcs r3, r3, r3 \n\t" \
\
"umull r4, r5, r8, r8 \n\t" \
/* Store carry in r8 */ \
"mov r8, #0 \n\t" \
"adc r8, r8, #0 \n\t" \
"adds r5, r5, r1 \n\t" \
"stmia r0!, {r4,r5} \n\t" \
\
"umull r4, r5, r9, r9 \n\t" \
"adcs r4, r4, r2 \n\t" \
"adcs r5, r5, r7 \n\t" \
"stmia r0!, {r4,r5} \n\t" \
\
"pop {r4, r5} \n\t" \
"umaal r5, r6, r14, r9 \n\t" \
/* Store carry in r9 */ \
"mov r9, #0 \n\t" \
"adc r9, r9, #0 \n\t" \
\
"mov r1, #0 \n\t" \
"umaal r1, r4, r11, r10 \n\t" \
"umaal r4, r5, r12, r10 \n\t" \
"umaal r5, r6, r14, r10 \n\t" \
\
"mov r2, #0 \n\t" \
"umaal r2, r5, r12, r11 \n\t" \
"umaal r5, r6, r14, r11 \n\t" \
\
"mov r7, #0 \n\t" \
"umaal r7, r6, r14, r12 \n\t" \
\
/* Load carry from r8 */ \
"lsrs r8, #1 \n\t" \
"adcs r1, r1, r1 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r2, r2, r2 \n\t" \
"adcs r5, r5, r5 \n\t" \
"adcs r7, r7, r7 \n\t" \
"adcs r6, r6, r6 \n\t" \
"adc r8, r8, #0 \n\t" \
\
/* Use carry from r9 */ \
"umaal r3, r9, r10, r10 \n\t" \
"adds r9, r9, r1 \n\t" \
"stmia r0!, {r3,r9} \n\t" \
\
"umull r9, r10, r11, r11 \n\t" \
"adcs r9, r9, r4 \n\t" \
"adcs r10, r10, r2 \n\t" \
"stmia r0!, {r9,r10} \n\t" \
\
"umull r9, r10, r12, r12 \n\t" \
"adcs r9, r9, r5 \n\t" \
"adcs r10, r10, r7 \n\t" \
"stmia r0!, {r9,r10} \n\t" \
\
"umull r9, r10, r14, r14 \n\t" \
"adcs r9, r9, r6 \n\t" \
"adcs r10, r10, r8 \n\t" \
"stmia r0!, {r9,r10} \n\t" \
"pop {r1, r2} \n\t"
#define FAST_SQUARE_ASM_6_TO_7 \
"cmp r2, #6 \n\t" \
"beq 1f \n\t" \
\
"sub r0, #24 \n\t" \
"sub r1, #24 \n\t" \
\
/* Do off-center multiplication */ \
"ldmia r1!, {r5,r6,r7,r8,r9,r10,r14} \n\t" \
"umull r3, r4, r5, r14 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r6, r14 \n\t" \
"mov r6, #0 \n\t" \
"umaal r5, r6, r7, r14 \n\t" \
"mov r7, #0 \n\t" \
"umaal r6, r7, r8, r14 \n\t" \
"mov r8, #0 \n\t" \
"umaal r7, r8, r9, r14 \n\t" \
"mov r9, #0 \n\t" \
"umaal r8, r9, r10, r14 \n\t" \
\
/* Multiply by 2 */ \
"mov r10, #0 \n\t" \
"adds r3, r3, r3 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r5, r5, r5 \n\t" \
"adcs r6, r6, r6 \n\t" \
"adcs r7, r7, r7 \n\t" \
"adcs r8, r8, r8 \n\t" \
"adcs r9, r9, r9 \n\t" \
"adcs r10, r10, #0 \n\t" \
\
/* Add into previous */ \
"ldr r12, [r0], #4 \n\t" \
"adds r3, r3, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r4, r4, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r5, r5, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r6, r6, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r7, r7, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r8, r8, r12 \n\t" \
"adcs r9, r9, #0 \n\t" \
"adcs r10, r10, #0 \n\t" \
"sub r0, #24 \n\t" \
\
/* Perform center multiplication */ \
"umlal r9, r10, r14, r14 \n\t" \
"stmia r0!, {r3,r4,r5,r6,r7,r8,r9,r10} \n\t"
#define FAST_SQUARE_ASM_7 \
"ldmia r1!, {r9,r10,r11,r12} \n\t" \
"push {r2} \n\t" \
\
"umull r14, r2, r10, r9 \n\t" \
"mov r3, #0 \n\t" \
"umaal r2, r3, r11, r9 \n\t" \
"mov r4, #0 \n\t" \
"umaal r3, r4, r12, r9 \n\t" \
\
"mov r5, #0 \n\t" \
"umaal r5, r3, r11, r10 \n\t" \
"adds r14, r14, r14 \n\t" \
"adcs r2, r2, r2 \n\t" \
"adcs r5, r5, r5 \n\t" \
/* Store carry in r7 */ \
"mov r7, #0 \n\t" \
"adc r7, r7, #0 \n\t" \
\
"umull r6, r8, r9, r9 \n\t" \
"adds r8, r8, r14 \n\t" \
"stmia r0!, {r6,r8} \n\t" \
\
"umull r6, r8, r10, r10 \n\t" \
"adcs r6, r6, r2 \n\t" \
"adcs r8, r8, r5 \n\t" \
"stmia r0!, {r6,r8} \n\t" \
/* Store carry in r8 */ \
"mov r8, #0 \n\t" \
"adc r8, r8, #0 \n\t" \
\
"ldmia r1!, {r2, r6, r14} \n\t" \
"push {r1} \n\t" \
"umaal r3, r4, r2, r9 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r6, r9 \n\t" \
"mov r1, #0 \n\t" \
"umaal r5, r1, r14, r9 \n\t" \
\
"mov r9, #0 \n\t" \
"umaal r3, r9, r12, r10 \n\t" \
"umaal r9, r4, r2, r10 \n\t" \
"umaal r4, r5, r6, r10 \n\t" \
"umaal r5, r1, r14, r10 \n\t" \
\
"mov r10, #0 \n\t" \
"umaal r10, r9, r12, r11 \n\t" \
"umaal r9, r4, r2, r11 \n\t" \
"umaal r4, r5, r6, r11 \n\t" \
"umaal r5, r1, r14, r11 \n\t" \
\
/* Load carry from r7 */ \
"lsrs r7, #1 \n\t" \
"adcs r3, r3, r3 \n\t" \
"adcs r10, r10, r10 \n\t" \
"adcs r9, r9, r9 \n\t" \
/* Store carry back in r7 */ \
"adc r7, r7, #0 \n\t" \
\
/* Use carry from r8 */ \
"umaal r3, r8, r11, r11 \n\t" \
"adds r8, r8, r10 \n\t" \
"stmia r0!, {r3,r8} \n\t" \
/* Store carry back in r8 */ \
"mov r8, #0 \n\t" \
"adc r8, r8, #0 \n\t" \
\
"mov r3, #0 \n\t" \
"umaal r3, r4, r2, r12 \n\t" \
"umaal r4, r5, r6, r12 \n\t" \
"umaal r5, r1, r14, r12 \n\t" \
\
"mov r10, #0 \n\t" \
"umaal r10, r5, r6, r2 \n\t" \
"umaal r5, r1, r14, r2 \n\t" \
\
"mov r11, #0 \n\t" \
"umaal r11, r1, r14, r6 \n\t" \
\
/* Load carry from r7 */ \
"lsrs r7, #1 \n\t" \
"adcs r3, r3, r3 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r10, r10, r10 \n\t" \
"adcs r5, r5, r5 \n\t" \
"adcs r11, r11, r11 \n\t" \
"adcs r1, r1, r1 \n\t" \
"adc r7, r7, #0 \n\t" \
\
/* Use carry from r8 */ \
"umaal r8, r9, r12, r12 \n\t" \
"adds r9, r9, r3 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
\
"umull r8, r9, r2, r2 \n\t" \
"adcs r8, r8, r4 \n\t" \
"adcs r9, r9, r10 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
\
"umull r8, r9, r6, r6 \n\t" \
"adcs r8, r8, r5 \n\t" \
"adcs r9, r9, r11 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
\
"umull r8, r9, r14, r14 \n\t" \
"adcs r8, r8, r1 \n\t" \
"adcs r9, r9, r7 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
"pop {r1, r2} \n\t"
#define FAST_SQUARE_ASM_7_TO_8 \
"cmp r2, #7 \n\t" \
"beq 1f \n\t" \
\
"sub r0, #28 \n\t" \
"sub r1, #28 \n\t" \
\
/* Do off-center multiplication */ \
"ldmia r1!, {r5,r6,r7,r8,r9,r10,r11,r14} \n\t" \
"umull r3, r4, r5, r14 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r6, r14 \n\t" \
"mov r6, #0 \n\t" \
"umaal r5, r6, r7, r14 \n\t" \
"mov r7, #0 \n\t" \
"umaal r6, r7, r8, r14 \n\t" \
"mov r8, #0 \n\t" \
"umaal r7, r8, r9, r14 \n\t" \
"mov r9, #0 \n\t" \
"umaal r8, r9, r10, r14 \n\t" \
"mov r10, #0 \n\t" \
"umaal r9, r10, r11, r14 \n\t" \
\
/* Multiply by 2 */ \
"mov r11, #0 \n\t" \
"adds r3, r3, r3 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r5, r5, r5 \n\t" \
"adcs r6, r6, r6 \n\t" \
"adcs r7, r7, r7 \n\t" \
"adcs r8, r8, r8 \n\t" \
"adcs r9, r9, r9 \n\t" \
"adcs r10, r10, r10 \n\t" \
"adcs r11, r11, #0 \n\t" \
\
/* Add into previous */ \
"ldr r12, [r0], #4 \n\t" \
"adds r3, r3, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r4, r4, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r5, r5, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r6, r6, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r7, r7, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r8, r8, r12 \n\t" \
"ldr r12, [r0], #4 \n\t" \
"adcs r9, r9, r12 \n\t" \
"adcs r10, r10, #0 \n\t" \
"adcs r11, r11, #0 \n\t" \
"sub r0, #28 \n\t" \
\
/* Perform center multiplication */ \
"umlal r10, r11, r14, r14 \n\t" \
"stmia r0!, {r3,r4,r5,r6,r7,r8,r9,r10,r11} \n\t"
#define FAST_SQUARE_ASM_8 \
"ldmia r1!, {r10,r11,r12,r14} \n\t" \
"push {r2} \n\t" \
\
"umull r2, r3, r11, r10 \n\t" \
"mov r4, #0 \n\t" \
"umaal r3, r4, r12, r10 \n\t" \
"mov r5, #0 \n\t" \
"umaal r4, r5, r14, r10 \n\t" \
\
"mov r6, #0 \n\t" \
"umaal r6, r4, r12, r11 \n\t" \
"adds r2, r2, r2 \n\t" \
"adcs r3, r3, r3 \n\t" \
"adcs r6, r6, r6 \n\t" \
/* Store carry in r7 */ \
"mov r7, #0 \n\t" \
"adc r7, r7, #0 \n\t" \
\
"umull r8, r9, r10, r10 \n\t" \
"adds r9, r9, r2 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
\
"umull r8, r9, r11, r11 \n\t" \
"adcs r8, r8, r3 \n\t" \
"adcs r9, r9, r6 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
/* Store carry in r8 */ \
"mov r8, #0 \n\t" \
"adc r8, r8, #0 \n\t" \
\
"ldmia r1!, {r2, r3} \n\t" \
"push {r1} \n\t" \
"umaal r4, r5, r2, r10 \n\t" \
"mov r6, #0 \n\t" \
"umaal r5, r6, r3, r10 \n\t" \
\
"mov r9, #0 \n\t" \
"umaal r9, r4, r14, r11 \n\t" \
"umaal r4, r5, r2, r11 \n\t" \
\
"mov r1, #0 \n\t" \
"umaal r1, r4, r14, r12 \n\t" \
\
/* Load carry from r7 */ \
"lsrs r7, #1 \n\t" \
"adcs r9, r9, r9 \n\t" \
"adcs r1, r1, r1 \n\t" \
/* Store carry back in r7 */ \
"adc r7, r7, #0 \n\t" \
\
/* Use carry from r8 */ \
"umaal r8, r9, r12, r12 \n\t" \
"adds r9, r9, r1 \n\t" \
"stmia r0!, {r8,r9} \n\t" \
/* Store carry back in r8 */ \
"mov r8, #0 \n\t" \
"adc r8, r8, #0 \n\t" \
\
"pop {r1} \n\t" \
/* TODO could fix up r1 value on stack here */ \
/* and leave the value on the stack (rather */ \
/* than popping) if supporting curves > 256 bits */ \
"ldr r9, [r1], #4 \n\t" \
"ldr r1, [r1] \n\t" \
\
"push {r7} \n\t" \
"umaal r5, r6, r9, r10 \n\t" \
"mov r7, #0 \n\t" \
"umaal r6, r7, r1, r10 \n\t" \
/* Carry now stored in r10 */ \
"pop {r10} \n\t" \
\
"umaal r4, r5, r3, r11 \n\t" \
"umaal r5, r6, r9, r11 \n\t" \
"umaal r6, r7, r1, r11 \n\t" \
\
"mov r11, #0 \n\t" \
"umaal r11, r4, r2, r12 \n\t" \
"umaal r4, r5, r3, r12 \n\t" \
"umaal r5, r6, r9, r12 \n\t" \
"umaal r6, r7, r1, r12 \n\t" \
\
"mov r12, #0 \n\t" \
"umaal r12, r4, r2, r14 \n\t" \
"umaal r4, r5, r3, r14 \n\t" \
"umaal r5, r6, r9, r14 \n\t" \
"umaal r6, r7, r1, r14 \n\t" \
\
/* Load carry from r10 */ \
"lsrs r10, #1 \n\t" \
"adcs r11, r11, r11 \n\t" \
"adcs r12, r12, r12 \n\t" \
"adc r10, r10, #0 \n\t" \
\
/* Use carry from r8 */ \
"umaal r8, r11, r14, r14 \n\t" \
"adds r11, r11, r12 \n\t" \
"stmia r0!, {r8,r11} \n\t" \
/* Store carry back in r8 */ \
"mov r8, #0 \n\t" \
"adc r8, r8, #0 \n\t" \
\
"mov r11, #0 \n\t" \
"umaal r11, r5, r3, r2 \n\t" \
"umaal r5, r6, r9, r2 \n\t" \
"umaal r6, r7, r1, r2 \n\t" \
\
"mov r12, #0 \n\t" \
"umaal r12, r6, r9, r3 \n\t" \
"umaal r6, r7, r1, r3 \n\t" \
\
"mov r14, #0 \n\t" \
"umaal r14, r7, r1, r9 \n\t" \
\
/* Load carry from r10 */ \
"lsrs r10, #1 \n\t" \
"adcs r4, r4, r4 \n\t" \
"adcs r11, r11, r11 \n\t" \
"adcs r5, r5, r5 \n\t" \
"adcs r12, r12, r12 \n\t" \
"adcs r6, r6, r6 \n\t" \
"adcs r14, r14, r14 \n\t" \
"adcs r7, r7, r7 \n\t" \
"adc r10, r10, #0 \n\t" \
\
/* Use carry from r8 */ \
"umaal r4, r8, r2, r2 \n\t" \
"adds r8, r8, r11 \n\t" \
"stmia r0!, {r4,r8} \n\t" \
\
"umull r4, r8, r3, r3 \n\t" \
"adcs r4, r4, r5 \n\t" \
"adcs r8, r8, r12 \n\t" \
"stmia r0!, {r4,r8} \n\t" \
\
"umull r4, r8, r9, r9 \n\t" \
"adcs r4, r4, r6 \n\t" \
"adcs r8, r8, r14 \n\t" \
"stmia r0!, {r4,r8} \n\t" \
\
"umull r4, r8, r1, r1 \n\t" \
"adcs r4, r4, r7 \n\t" \
"adcs r8, r8, r10 \n\t" \
"stmia r0!, {r4,r8} \n\t" \
/* TODO pop {r1, r2} if supporting curves > 256 bits */ \
"pop {r2} \n\t"
#endif /* _UECC_ASM_ARM_MULT_SQUARE_H_ */