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| author | spicyjpeg <thatspicyjpeg@gmail.com> | 2022-10-21 13:24:54 +0200 |
|---|---|---|
| committer | spicyjpeg <thatspicyjpeg@gmail.com> | 2022-10-21 13:24:54 +0200 |
| commit | b1632d7df0e840692612461a80d0e05d6a3228ed (patch) | |
| tree | 2f804b26c5befa1ed360db034910c8107b8c3ee6 /libpsn00b/psxsio/_sio_control.s | |
| parent | 982df5fe197c4db2be4bffe59a05c837b7508365 (diff) | |
| download | psn00bsdk-b1632d7df0e840692612461a80d0e05d6a3228ed.tar.gz | |
Rewrite psxsio with new API, fix compiler warnings
Diffstat (limited to 'libpsn00b/psxsio/_sio_control.s')
| -rw-r--r-- | libpsn00b/psxsio/_sio_control.s | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/libpsn00b/psxsio/_sio_control.s b/libpsn00b/psxsio/_sio_control.s deleted file mode 100644 index 6378def..0000000 --- a/libpsn00b/psxsio/_sio_control.s +++ /dev/null @@ -1,184 +0,0 @@ -.set noreorder - -.include "hwregs_a.inc" - -.section .text - -# Currently implemented serial control functions: -# -# cmd(a0) sub(a1) -# 0 0 Get serial status -# 0 1 Get control line status -# 0 2 Get serial mode -# 0 3 Get baud rate -# 0 4 Read 1 byte -# 1 1 Set serial control -# 1 2 Set serial mode -# 1 3 Set baud rate -# 1 4 Write 1 byte -# 2 0 Reset serial -# 2 1 Acknowledge serial - -.global _sio_control -.type _sio_control, @function -_sio_control: - - # a0 - command - # a1 - subcommand - # a2 - argument - - lui $a3, IOBASE - - beq $a0, $0, .Lcmd0 - nop - beq $a0, 1, .Lcmd1 - nop - beq $a0, 2, .Lcmd2 - nop - jr $ra - nop - - -.Lcmd0: - - beq $a1, $0, .Lcmd0arg0 - nop - beq $a1, 1, .Lcmd0arg1 - nop - beq $a1, 2, .Lcmd0arg2 - nop - beq $a1, 3, .Lcmd0arg3 - nop - beq $a1, 4, .Lcmd0arg4 - nop - jr $ra - nop - -.Lcmd0arg0: # Get SIO status - - lhu $v0, SIO_STAT($a3) - nop - - jr $ra - andi $v0, 0x3FF - -.Lcmd0arg1: # Get control line status - - lhu $v1, SIO_CTRL($a3) - nop - srl $v0, $v1, 1 - andi $v0, 0x1 - srl $v1, 4 - andi $v1, 0x2 - - jr $ra - or $v0, $v1 - - -.Lcmd0arg2: # Get serial mode - - lhu $v0, SIO_MODE($a3) - nop - jr $ra - andi $v0, 0xFF - -.Lcmd0arg3: - - lui $v1, 0x1f - lhu $v0, SIO_BAUD($a3) - ori $v1, 0xa400 - div $v1, $v0 - nop - nop - mflo $v0 - jr $ra - nop - -.Lcmd0arg4: # Serial RX read - - lbu $v0, SIO_TXRX($a3) - nop - jr $ra - nop - - -.Lcmd1: - - beq $a1, 1, .Lcmd1arg1 - nop - beq $a1, 2, .Lcmd1arg2 - nop - beq $a1, 3, .Lcmd1arg3 - nop - beq $a1, 4, .Lcmd1arg4 - nop - jr $ra - nop - -.Lcmd1arg1: - - andi $v0, $a2, 0x1CFF - sh $a2, SIO_CTRL($a3) - jr $ra - nop - -.Lcmd1arg2: - - sh $a2, SIO_MODE($a3) - jr $ra - nop - -.Lcmd1arg3: - - lui $v0, 0x1f - ori $v0, 0xa400 - divu $v0, $a2 - bnez $a2, .Lgood_baud - nop - jr $ra - nop - -.Lgood_baud: - - mflo $v0 - sh $v0, SIO_BAUD($a3) - nop - jr $ra - nop - -.Lcmd1arg4: - - sb $a2, SIO_TXRX($a3) - nop - jr $ra - nop - -.Lcmd2: - - beq $a1, $0 , .Lcmd2arg0 - li $v0, 1 - beq $a1, $v0, .Lcmd2arg1 - nop - jr $ra - nop - -.Lcmd2arg0: - - li $v0, 0x40 - sh $v0, SIO_CTRL($a3) - sh $0 , SIO_MODE($a3) - sh $0 , SIO_BAUD($a3) - nop - jr $ra - nop - -.Lcmd2arg1: - - lhu $v0, SIO_CTRL($a3) - nop - ori $v0, 0x10 - sh $v0, SIO_CTRL($a3) - jr $ra - nop - -
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