14 lines
956 B
C++
14 lines
956 B
C++
.include "rom_layout.inc"
|
|
|
|
; Stable assembly ABI exported by the resident BIOS.
|
|
BIOS_PUTC = RESIDENT_RAM_BASE + 0x50 ; A = character; preserves all registers
|
|
BIOS_TRY_GETC = RESIDENT_RAM_BASE + 0x53 ; returns A = character or 0; preserves BC..IY
|
|
BIOS_GETC = RESIDENT_RAM_BASE + 0x56 ; blocking; returns character in A
|
|
BIOS_IO_OUT = RESIDENT_RAM_BASE + 0x59 ; A = port, L = value; preserves all registers
|
|
BIOS_IO_IN = RESIDENT_RAM_BASE + 0x5C ; A = port; returns value in A
|
|
BIOS_DELAY_MS = RESIDENT_RAM_BASE + 0x5F ; HL = milliseconds; preserves all registers
|
|
BIOS_MONITOR = RESIDENT_RAM_BASE + 0x62 ; warm-start the monitor; does not return
|
|
BIOS_BANK = RESIDENT_RAM_BASE + 0x65 ; A=0 split 48K/16K, otherwise upper 64K
|
|
BIOS_ROM_DISABLE = RESIDENT_RAM_BASE + 0x68 ; disable ROM while preserving the bank selection
|
|
BIOS_ROM_ENABLE = RESIDENT_RAM_BASE + 0x6B ; enable ROM while preserving the bank selection
|