URL https://opencores.org/ocsvn/System09/System09/trunk

Subversion Repositories System09

[/] [System09/] [trunk/] [src/] [Flex9/] [f9-monex.asm] - Diff between revs 66 and 120

Rev 66	Rev 120
Line 1...	Line 1...
`*`	`*`
`** FLEX 9 DISK DRIVERS`	`** FLEX 9 DISK DRIVERS`
`*`	`*`
`* FOR SYS09BUG ON THE DIGILENT SPARTAN 3 STARTER BOARD`	`* FOR SYS09BUG ON THE DIGILENT SPARTAN 3 STARTER BOARD`
	`* AND THE TERASIC CYCLONE 2 DE1 BOARD`
`* WITH I/O MAPPED AT $XE000`	`* WITH I/O MAPPED AT $XE000`
`* AND ROM MAPPED AT $XF000`	`* AND ROM MAPPED AT $XF000`
`* THE DIGILENT SPARTAN 3 STARTER BOARD HAS 1MBYTE OF SRAM`	`* THE DIGILENT SPARTAN 3 STARTER BOARD HAS 1MBYTE OF SRAM`
	`* THE TERASIC CYCLONE 2 DE1 BOARD HAS 512KB OF SRAM`
`* THE FIRST 64K IS USED BY FLEX,`	`* THE FIRST 64K IS USED BY FLEX,`
`* THE SECOND 128K IS USED AS A ROM DISK`	`* THE SECOND 128K IS USED AS A ROM DISK`
`* THE REMAINING RAM IS USED FOR A RAM DISK`	`* THE REMAINING RAM IS USED FOR A RAM DISK`
`*`	`*`
`*`	`*`
Line 41...	Line 43...
`EMAXSEC EQU 14 ROM DISK`	`EMAXSEC EQU 14 ROM DISK`
`EMAXTRK EQU 48 3 * 16 * 14 * 256 = 172,032 Bytes`	`EMAXTRK EQU 48 3 * 16 * 14 * 256 = 172,032 Bytes`
`ETOTSEC EQU EMAXTRK*EMAXSEC-EMAXSEC`	`ETOTSEC EQU EMAXTRK*EMAXSEC-EMAXSEC`
`*`	`*`
`RMAXSEC EQU 14 RAM DISK`	`RMAXSEC EQU 14 RAM DISK`
`RMAXTRK EQU 192 12 * 16 * 14 * 256 = 688,128 Bytes`	`* RMAXTRK EQU 192 12 * 16 * 256 = 688,128 Bytes (Spartan 3 starter with 1MB)`
	`RMAXTRK EQU 64 4 * 16 * 14 * 256 = 229,376 Bytes (Cyclone 2 DE1 with 512KB)`
`RTOTSEC EQU RMAXTRK*RMAXSEC-RMAXSEC`	`RTOTSEC EQU RMAXTRK*RMAXSEC-RMAXSEC`
`*`	`*`
`* DRIVE TYPES`	`* DRIVE TYPES`
`*`	`*`
`DTYPROM EQU 0 ROM DISK`	`DTYPROM EQU 0 ROM DISK`