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| author | Rich Felker <dalias@libc.org> | 2015-10-18 20:17:43 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2015-11-05 17:21:33 -0500 |
| commit | 8984b5837a10dcdc654ef5b7948c1377ddd80a02 (patch) | |
| tree | d1a49e92c162c16561b27d07b7ac356cd6ac1f82 /src/string/armel | |
| parent | 918b1c1d177b5e3cf22a8aae4a01776495fdc3bc (diff) | |
| download | musl-8984b5837a10dcdc654ef5b7948c1377ddd80a02.tar.gz musl-8984b5837a10dcdc654ef5b7948c1377ddd80a02.tar.xz musl-8984b5837a10dcdc654ef5b7948c1377ddd80a02.zip | |
convert arm memcpy asm to UAL, remove .word hacks
contrary to commit 9367fe926196f407705bb07cd29c6e40eb1774dd, all relevant gas versions actually do support .syntax unified.
Diffstat (limited to 'src/string/armel')
| -rw-r--r-- | src/string/armel/memcpy.s | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/src/string/armel/memcpy.s b/src/string/armel/memcpy.s index 9c5e38d3..54164030 100644 --- a/src/string/armel/memcpy.s +++ b/src/string/armel/memcpy.s @@ -42,6 +42,8 @@ * of prefetch code that is not compatible with older cpus. */ +.syntax unified + .global memcpy .type memcpy,%function memcpy: @@ -73,12 +75,12 @@ memcpy: */ movs r12, r3, lsl #31 sub r2, r2, r3 /* we know that r3 <= r2 because r2 >= 4 */ - .word 0x44d13001 /* ldrbmi r3, [r1], #1 */ - .word 0x24d14001 /* ldrbcs r4, [r1], #1 */ - .word 0x24d1c001 /* ldrbcs r12,[r1], #1 */ - .word 0x44c03001 /* strbmi r3, [r0], #1 */ - .word 0x24c04001 /* strbcs r4, [r0], #1 */ - .word 0x24c0c001 /* strbcs r12,[r0], #1 */ + ldrbmi r3, [r1], #1 + ldrbcs r4, [r1], #1 + ldrbcs r12,[r1], #1 + strbmi r3, [r0], #1 + strbcs r4, [r0], #1 + strbcs r12,[r0], #1 src_aligned: @@ -177,12 +179,12 @@ less_than_32_left: stmmi r0!, {r8, r9} movs r12, r2, lsl #30 ldrcs r3, [r1], #4 /* 4 bytes */ - .word 0x40d140b2 /* ldrhmi r4, [r1], #2 */ /* 2 bytes */ + ldrhmi r4, [r1], #2 /* 2 bytes */ strcs r3, [r0], #4 - .word 0x40c040b2 /* strhmi r4, [r0], #2 */ + strhmi r4, [r0], #2 tst r2, #0x1 - .word 0x15d13000 /* ldrbne r3, [r1] */ /* last byte */ - .word 0x15c03000 /* strbne r3, [r0] */ + ldrbne r3, [r1] /* last byte */ + strbne r3, [r0] /* we're done! restore everything and return */ 1: ldmfd sp!, {r5-r11} @@ -224,11 +226,11 @@ non_congruent: * becomes aligned to 32 bits (r5 = nb of words to copy for alignment) */ movs r5, r5, lsl #31 - .word 0x44c03001 /* strbmi r3, [r0], #1 */ + strbmi r3, [r0], #1 movmi r3, r3, lsr #8 - .word 0x24c03001 /* strbcs r3, [r0], #1 */ + strbcs r3, [r0], #1 movcs r3, r3, lsr #8 - .word 0x24c03001 /* strbcs r3, [r0], #1 */ + strbcs r3, [r0], #1 movcs r3, r3, lsr #8 cmp r2, #4 @@ -355,23 +357,23 @@ less_than_thirtytwo: partial_word_tail: /* we have a partial word in the input buffer */ movs r5, lr, lsl #(31-3) - .word 0x44c03001 /* strbmi r3, [r0], #1 */ + strbmi r3, [r0], #1 movmi r3, r3, lsr #8 - .word 0x24c03001 /* strbcs r3, [r0], #1 */ + strbcs r3, [r0], #1 movcs r3, r3, lsr #8 - .word 0x24c03001 /* strbcs r3, [r0], #1 */ + strbcs r3, [r0], #1 /* Refill spilled registers from the stack. Don't update sp. */ ldmfd sp, {r5-r11} copy_last_3_and_return: movs r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */ - .word 0x44d12001 /* ldrbmi r2, [r1], #1 */ - .word 0x24d13001 /* ldrbcs r3, [r1], #1 */ - .word 0x25d1c000 /* ldrbcs r12,[r1] */ - .word 0x44c02001 /* strbmi r2, [r0], #1 */ - .word 0x24c03001 /* strbcs r3, [r0], #1 */ - .word 0x25c0c000 /* strbcs r12,[r0] */ + ldrbmi r2, [r1], #1 + ldrbcs r3, [r1], #1 + ldrbcs r12,[r1] + strbmi r2, [r0], #1 + strbcs r3, [r0], #1 + strbcs r12,[r0] /* we're done! restore sp and spilled registers and return */ add sp, sp, #28 |