diff options
Diffstat (limited to 'psp/mips_stub.S')
| -rw-r--r-- | psp/mips_stub.S | 282 |
1 files changed, 1 insertions, 281 deletions
diff --git a/psp/mips_stub.S b/psp/mips_stub.S index dd91ea8..d3324c1 100644 --- a/psp/mips_stub.S +++ b/psp/mips_stub.S @@ -1319,7 +1319,6 @@ execute_load_open_u16u: ror $2, $2, 8 # rotate value by 8bits load_u16_ftable: -# .long execute_load_full_u16 .long execute_load_bios_u16 # 0x00 BIOS .long execute_load_open_u16 # 0x01 open address .long execute_load_ewram_u16 # 0x02 EWRAM @@ -1333,7 +1332,6 @@ load_u16_ftable: .long execute_load_gamepakA_u16 # 0x0A gamepak .long execute_load_gamepakB_u16 # 0x0B gamepak .long execute_load_gamepakC_u16 # 0x0C gamepak - .long execute_load_eeprom_u16 # 0x0D gamepak/eeprom .long execute_load_backup_u16 # 0x0E Flash ROM/SRAM .long execute_load_open_u16 # 0x0F open @@ -1355,42 +1353,6 @@ load_u16_ftable: .long execute_load_backup_u16u # 0x0E Flash ROM/SRAM unaligned .long execute_load_open_u16u # 0x0F open unaligned - - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - .long execute_load_full_u16 - - - patch_load_u16: patch_handler_align load_u16_ftable, 1 @@ -1921,7 +1883,6 @@ load_u32_ftable: .long execute_load_gamepakA_u32 # 0x0A gamepak .long execute_load_gamepakB_u32 # 0x0B gamepak .long execute_load_gamepakC_u32 # 0x0C gamepak - .long execute_load_eeprom_u32 # 0x0D gamepak/eeprom .long execute_load_backup_u32 # 0x0E Flash ROM/SRAM .long execute_load_open_u32 # 0x0F open @@ -2001,7 +1962,7 @@ execute_load_bios_u32a: load_u32 bios_read_protect 2: - open_load32_a + open_load32_core nop execute_load_ewram_u32a: @@ -2510,163 +2471,6 @@ patch_store_u32a: patch_handler store_u32a_ftable, 0x0F - -#execute_load_u8: -execute_load_full_u8: - srl $1, $4, 28 # check if the address is out of range - bne $1, $0, ext_load_u8 # if it is, perform an extended read - srl $2, $4, 15 # $1 = page number of address - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 # $1 = memory_map_read[address >> 15] - lw $1, -32768($2) - beq $1, $0, ext_load_u8 # if it's NULL perform an extended read - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - jr $ra # return - lbu $2, ($1) # read the value - -ext_load_u8: - addiu $sp, $sp, -4 # make room on the stack for $ra - sw $ra, ($sp) # store return address - save_registers - jal read_memory8 # read the value - nop - restore_registers - lw $ra, ($sp) # restore return address - jr $ra # return - addiu $sp, $sp, 4 # fix stack (delay slot) - -#execute_load_s8: -execute_load_full_s8: - srl $1, $4, 28 # check if the address is out of range - bne $1, $0, ext_load_s8 # if it is, perform an extended read - srl $2, $4, 15 # $1 = page number of address - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 # $1 = memory_map_read[address >> 15] - lw $1, -32768($2) - beq $1, $0, ext_load_s8 # if it's NULL perform an extended read - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - jr $ra # return - lb $2, ($1) # read the value - -ext_load_s8: - addiu $sp, $sp, -4 # make room on the stack for $ra - sw $ra, ($sp) # store return address - save_registers - jal read_memory8 # read the value - nop - restore_registers - seb $2, $2 # sign extend the read value - lw $ra, ($sp) # restore return address - jr $ra # return - addiu $sp, $sp, 4 # fix stack (delay slot) - -#execute_load_u16: -execute_load_full_u16: - srl $1, $4, 28 # check if the address is out of range - ins $1, $4, 4, 1 # or unaligned (bottom bit) - bne $1, $0, ext_load_u16 # if it is, perform an extended read - srl $2, $4, 15 # $1 = page number of address - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 # $1 = memory_map_read[address >> 15] - lw $1, -32768($2) - beq $1, $0, ext_load_u16 # if it's NULL perform an extended read - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - jr $ra # return - lhu $2, ($1) # read the value - -ext_load_u16: - addiu $sp, $sp, -4 # make room on the stack for $ra - sw $ra, ($sp) # store return address - save_registers - jal read_memory16 # read the value - nop - restore_registers - lw $ra, ($sp) # restore return address - jr $ra # return - addiu $sp, $sp, 4 # fix stack (delay slot) - -#execute_load_s16: -execute_load_full_s16: - srl $1, $4, 28 # check if the address is out of range - ins $1, $4, 4, 1 # or unaligned (bottom bit) - bne $1, $0, ext_load_s16 # if it is, perform an extended read - srl $2, $4, 15 # $1 = page number of address - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 # $1 = memory_map_read[address >> 15] - lw $1, -32768($2) - beq $1, $0, ext_load_s16 # if it's NULL perform an extended read - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - jr $ra # return - lh $2, ($1) # read the value - -ext_load_s16: - addiu $sp, $sp, -4 # make room on the stack for $ra - sw $ra, ($sp) # store return address - save_registers - jal read_memory16_signed # read the value - nop - restore_registers - seh $2, $2 # sign extend the return value - lw $ra, ($sp) # restore return address - jr $ra # return - addiu $sp, $sp, 4 # fix stack (delay slot) - -#execute_load_u32: -execute_load_full_u32: - srl $1, $4, 28 # check if the address is out of range - ins $1, $4, 4, 2 # or unaligned (bottom two bits) - bne $1, $0, ext_load_u32 # if it is, perform an extended read - srl $2, $4, 15 # $1 = page number of address - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 # $1 = memory_map_read[address >> 15] - lw $1, -32768($2) - beq $1, $0, ext_load_u32 # if it's NULL perform an extended read - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - jr $ra # return - lw $2, ($1) # read the value - -ext_load_u32: - addiu $sp, $sp, -4 # make room on the stack for $ra - sw $ra, ($sp) # store return address - save_registers - jal read_memory32 # read the value - nop - restore_registers - lw $ra, ($sp) # restore return address - jr $ra # return - addiu $sp, $sp, 4 # fix stack (delay slot) - -#execute_aligned_load32: - srl $2, $4, 28 # check if the address is out of range - bne $2, $0, ext_aligned_load32 # if it is, perform an extended load - srl $1, $4, 15 # $1 = page number of address - sll $1, $1, 2 # adjust to word index - addu $1, $1, $16 # $1 = memory_map_read[address >> 15] - lw $1, -32768($1) - beq $1, $0, ext_aligned_load32 # if it's NULL perform an extended read - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - jr $ra # return - lw $2, ($1) # read the value - -ext_aligned_load32: - addiu $sp, $sp, -8 # make room on the stack for $ra - sw $6, 4($sp) - sw $ra, ($sp) # store return address - save_registers - jal read_memory32 # read the value - nop - restore_registers - lw $6, 4($sp) - lw $ra, ($sp) # restore return address - jr $ra # return - addiu $sp, $sp, 8 # fix stack (delay slot) - # General ext memory routines ext_store_ignore: @@ -2804,39 +2608,6 @@ ext_store_u8_jtable: .long ext_store_ignore # 0x0F invalid - -ext_store_u8: - srl $1, $4, 24 # $1 = address >> 24 - sltu $2, $1, 16 # check if the value is out of range - beq $2, $0, ext_store_ignore - sll $1, $1, 2 # make address word indexed (delay) - lui $2, %hi(ext_store_u8_jtable) - addu $2, $2, $1 - # $2 = ext_store_u8_jtable[address >> 24] - lw $2, %lo(ext_store_u8_jtable)($2) - jr $2 # jump to table location - nop - -# $4: address to write to -# $5: value to write -# $6: current PC - -#execute_store_u8: - srl $1, $4, 28 # check if the address is out of range - bne $1, $0, ext_store_u8 # if it is, perform an extended write - srl $2, $4, 15 # $1 = page number of address (delay slot) - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 - lw $1, 256($2) # $1 = memory_map_write[address >> 15] - beq $1, $0, ext_store_u8 # if it's NULL perform an extended write - andi $2, $4, 0x7FFF # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - lb $2, -32768($1) # load the SMC status - bne $2, $0, smc_write # is there code there? - sb $5, ($1) # store the value (delay slot) - jr $ra # return - nop - # 16bit ext memory routines ext_store_io16: @@ -2919,39 +2690,6 @@ ext_store_u16_jtable: .long ext_store_eeprom # 0x0D EEPROM (possibly) .long ext_store_ignore # 0x0E Flash ROM/SRAM -ext_store_u16: - srl $1, $4, 24 # $1 = address >> 24 - sltu $2, $1, 16 # check if the value is out of range - beq $2, $0, ext_store_ignore - sll $1, $1, 2 # make address word indexed (delay) - lui $2, %hi(ext_store_u16_jtable) - addu $2, $2, $1 - # $2 = ext_store_u16_jtable[address >> 24] - lw $2, %lo(ext_store_u16_jtable)($2) - jr $2 # jump to table location - nop - - -#execute_store_u16: - srl $1, $4, 28 # check if the address is out of range - bne $1, $0, ext_store_u16 # if it is, perform an extended write - srl $2, $4, 15 # $1 = page number of address (delay slot) - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 - lw $1, 256($2) # $1 = memory_map_write[address >> 15] - beq $1, $0, ext_store_u16 # if it's NULL perform an extended write - andi $2, $4, 0x7FFE # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - lh $2, -32768($1) # load the SMC status - bne $2, $0, smc_write # is there code there? - sh $5, ($1) # store the value (delay slot) - jr $ra # return - nop - - - - - @@ -3030,24 +2768,6 @@ ext_store_u32: jr $2 # jump to table location nop -#execute_store_u32: -execute_store_full_u32: - srl $1, $4, 28 # check if the address is out of range - bne $1, $0, ext_store_u32 # if it is, perform an extended write - srl $2, $4, 15 # $1 = page number of address (delay slot) - sll $2, $2, 2 # adjust to word index - addu $2, $2, $16 - lw $1, 256($2) # $1 = memory_map_write[address >> 15] - beq $1, $0, ext_store_u32 # if it's NULL perform an extended write - andi $2, $4, 0x7FFC # $2 = low 15bits of address (delay slot) - addu $1, $1, $2 # add the memory map offset - lw $2, -32768($1) # load the SMC status - bne $2, $0, smc_write # is there code there? - sw $5, ($1) # store the value (delay slot) - jr $ra # return - nop - - # 32bit ext aligned, non a2 destroying routines ext_store_io32a: |