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authorXavier Del Campo Romero <xavi92@disroot.org>2025-07-05 02:34:11 +0200
committerXavier Del Campo Romero <xavi92@disroot.org>2025-07-05 02:34:11 +0200
commitbeb76e4dd362374b8f42cd971d394bba1074cd8d (patch)
tree3ea4cc342737afb9225c01160c92647ba66c78bd /libpsn00b/libc/memset.s
parent5d9aa2d3dfc7d6e51c2eb942ab4cdbae5571a40a (diff)
downloadpsn00bsdk-fix-include.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.s119
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)