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| author | Xavier Del Campo Romero <xavi92@disroot.org> | 2025-07-05 02:34:11 +0200 |
|---|---|---|
| committer | Xavier Del Campo Romero <xavi92@disroot.org> | 2025-07-05 02:34:11 +0200 |
| commit | beb76e4dd362374b8f42cd971d394bba1074cd8d (patch) | |
| tree | 3ea4cc342737afb9225c01160c92647ba66c78bd /libpsn00b/libc/memset.s | |
| parent | 5d9aa2d3dfc7d6e51c2eb942ab4cdbae5571a40a (diff) | |
| download | psn00bsdk-beb76e4dd362374b8f42cd971d394bba1074cd8d.tar.gz | |
Replace .include with #includefix-include
For some reason, both mipsel-unknown-elf-gcc 8.2.0 and mipsel-non-elf
15.1.0 were unable to resolve .include assembler directives.
As a workaround, it is still possible to use the preprocessor, and
therefore the usual #include preprocessor directive. However, this
requires the assembly files to use the uppercase .S file extension.
Diffstat (limited to 'libpsn00b/libc/memset.s')
| -rw-r--r-- | libpsn00b/libc/memset.s | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/libpsn00b/libc/memset.s b/libpsn00b/libc/memset.s deleted file mode 100644 index 59cb10b..0000000 --- a/libpsn00b/libc/memset.s +++ /dev/null @@ -1,119 +0,0 @@ -# PSn00bSDK optimized memset -# (C) 2022 spicyjpeg - MPL licensed - -.set noreorder - -.section .text.memset, "ax", @progbits -.global memset -.type memset, @function - -memset: - # If more than 16 bytes have to be written then take the "large" path, - # otherwise use the code below. - addiu $t0, $a2, -16 - bgtz $t0, .Llarge_fill - move $v0, $a0 # return_value = dest - - # Jump to one of the sb opcodes below. This is basically a cut-down Duff's - # device implementation with no looping. - la $t0, .Lsmall_duff + 0x40 # jump_addr = &small_duff[(16 - count) * 4] - sll $t1, $a2, 2 - subu $t0, $t1 - addu $a0, $a2 # dest -= 16 - count - jr $t0 - addiu $a0, -16 - -.Lsmall_duff: - sb $a1, 0x0($a0) - sb $a1, 0x1($a0) - sb $a1, 0x2($a0) - sb $a1, 0x3($a0) - sb $a1, 0x4($a0) - sb $a1, 0x5($a0) - sb $a1, 0x6($a0) - sb $a1, 0x7($a0) - sb $a1, 0x8($a0) - sb $a1, 0x9($a0) - sb $a1, 0xa($a0) - sb $a1, 0xb($a0) - sb $a1, 0xc($a0) - sb $a1, 0xd($a0) - sb $a1, 0xe($a0) - sb $a1, 0xf($a0) - jr $ra - nop - -.Llarge_fill: - # Initialize fast filling by repeating the fill byte 4 times, so it can be - # written 32 bits at a time. - andi $a1, 0xff # ch &= 0xff - sll $t0, $a1, 8 # ch |= (ch << 8) | (ch << 16) | (ch << 24) - or $a1, $t0 - sll $t0, $a1, 16 - or $a1, $t0 - - # Fill the first 1-4 bytes (here the swr instruction does all the magic) - # and update dest and count accordingly. - swr $a1, 0($a0) - andi $t0, $a0, 3 # align = 4 - (dest % 4) - addiu $t0, -4 - addu $a2, $t0 # count -= align - subu $a0, $t0 # dest += align - - la $t1, .Llarge_duff - andi $t2, $a2, 3 # remainder = count % 4 - subu $a2, $t2 # count -= remainder - -.Llarge_fill_loop: - # If 128 bytes or more still have to be written, skip calculating the jump - # offset and execute the whole block of sw opcodes. - addiu $a2, -0x80 # count -= 0x80 - bgez $a2, .Llarge_duff - #nop - - # Jump to one of the sw opcodes below. This is the "full" Duff's device. - subu $t0, $t1, $a2 # jump_addr = &large_duff[0x80 - (count + 0x80)] - jr $t0 - addu $a0, $a2 # dest -= 0x80 - (count + 0x80) - -.Llarge_duff: - sw $a1, 0x00($a0) - sw $a1, 0x04($a0) - sw $a1, 0x08($a0) - sw $a1, 0x0c($a0) - sw $a1, 0x10($a0) - sw $a1, 0x14($a0) - sw $a1, 0x18($a0) - sw $a1, 0x1c($a0) - sw $a1, 0x20($a0) - sw $a1, 0x24($a0) - sw $a1, 0x28($a0) - sw $a1, 0x2c($a0) - sw $a1, 0x30($a0) - sw $a1, 0x34($a0) - sw $a1, 0x38($a0) - sw $a1, 0x3c($a0) - sw $a1, 0x40($a0) - sw $a1, 0x44($a0) - sw $a1, 0x48($a0) - sw $a1, 0x4c($a0) - sw $a1, 0x50($a0) - sw $a1, 0x54($a0) - sw $a1, 0x58($a0) - sw $a1, 0x5c($a0) - sw $a1, 0x60($a0) - sw $a1, 0x64($a0) - sw $a1, 0x68($a0) - sw $a1, 0x6c($a0) - sw $a1, 0x70($a0) - sw $a1, 0x74($a0) - sw $a1, 0x78($a0) - sw $a1, 0x7c($a0) - - bgtz $a2, .Llarge_fill_loop - addiu $a0, 0x80 # dest += 0x80 - - # Fill the remaining 1-4 bytes, using (again) an unaligned store. - addu $a0, $t2 # last_byte = dest + remainder - 1 - jr $ra - swl $a1, -1($a0) |
