URL https://opencores.org/ocsvn/ion/ion/trunk

Subversion Repositories ion

[/] [ion/] [trunk/] [src/] [memtest/] [flash.s] - Diff between revs 185 and 229

Rev 185	Rev 229
Line 30...	Line 30...


`#---- UART stuff`	`#---- UART stuff`
`.set UART_BASE, 0x20000000 # UART base address`	`.set UART_BASE, 0x20000000 # UART base address`
`.set UART_TX, 0x0000 # TX reg offset`	`.set UART_TX, 0x0000 # TX reg offset`
`.set UART_STATUS, 0x0020 # status reg offset`	`.set UART_STATUS, 0x0004 # status reg offset`
	`.set UART_TX_RDY, 0x0001 # tx ready flag mask`

`#---------------------------------------------------------------------------`	`#---------------------------------------------------------------------------`

`.text`	`.text`
`.align 2`	`.align 2`
Line 251...	Line 252...
`lb $v0,0($a0)`	`lb $v0,0($a0)`
`beqz $v0,puts_end`	`beqz $v0,puts_end`
`addiu $a0,1`	`addiu $a0,1`
`puts_wait_tx_rdy:`	`puts_wait_tx_rdy:`
`lw $v1,UART_STATUS($a2)`	`lw $v1,UART_STATUS($a2)`
`andi $v1,$v1,0x02`	`andi $v1,$v1,UART_TX_RDY`
`beqz $v1,puts_wait_tx_rdy`	`beqz $v1,puts_wait_tx_rdy`
`nop`	`nop`
`sw $v0,UART_TX($a2)`	`sw $v0,UART_TX($a2)`
`b puts_loop`	`b puts_loop`
`nop`	`nop`
Line 277...	Line 278...
`andi $v0,$v0,0x0f`	`andi $v0,$v0,0x0f`
`addu $s2,$a3,$v0`	`addu $s2,$a3,$v0`
`lb $v0,0($s2)`	`lb $v0,0($s2)`
`put_hex_wait_tx_rdy:`	`put_hex_wait_tx_rdy:`
`lw $v1,UART_STATUS($a2)`	`lw $v1,UART_STATUS($a2)`
`andi $v1,$v1,0x02`	`andi $v1,$v1,UART_TX_RDY`
`beqz $v1,put_hex_wait_tx_rdy`	`beqz $v1,put_hex_wait_tx_rdy`
`nop`	`nop`
`sw $v0,UART_TX($a2)`	`sw $v0,UART_TX($a2)`

`bnez $a1,put_hex_loop`	`bnez $a1,put_hex_loop`