diff options
Diffstat (limited to 'programs/sub-suite/declare.s')
| -rw-r--r-- | programs/sub-suite/declare.s | 88 |
1 files changed, 67 insertions, 21 deletions
diff --git a/programs/sub-suite/declare.s b/programs/sub-suite/declare.s index 183d09d..6a8c90f 100644 --- a/programs/sub-suite/declare.s +++ b/programs/sub-suite/declare.s @@ -68,6 +68,19 @@ op .byte ; Base value used to get the actual opcode. .endstruct +; Free memory block struct, used by malloc. +.struct fblk + size .qword ; Size of free memory block. + next .qword ; Pointer to next free block. + prev .qword ; Pointer to previous free block. +.endstruct + +; Used memory block struct, used by malloc. +.struct ublk + size .qword ; Size of used memory block. + start .qword ; Starting address of memory block. +.endstruct + ; Enums. @@ -81,8 +94,17 @@ step = $110 ; Enables clock stepping, when set. maxrow = 23 ; Screen's row count. maxcol = 79 ; Screen's column count. -MAX_SYM = $800 ; Max symbol size. -OPNUM = 74 ; Instruction count. +; Table sizes. +SCRSIZE = $2000 ; Screen buffer size, in bytes. +CMDSIZE = $400 ; Command buffer size, in bytes. +LWSIZE = $1000 ; Linewrap table size, in bytes. + +; Magic number used by findramend. +MAGIC = $AA + +; Heap related values. +HEAPORG = $30000 ; Starting point of the heap. + ; Directives. DIR_ORG = 0 ; Origin. @@ -164,23 +186,10 @@ IMPL = 1 << 10 ; Implied. INDX2 = 1 << 11 ; Special case of INDX that uses the indirect table. ZM2 = 1 << 12 ; Special case of Zero Matrix used by JMP, and JSR. - +OPNUM = 74 ; Instruction count. ; RAM declarations. -; Linewrap table. -.org $30000 -bitabl: - .res $1000 - -; Screen buffer. -buffer: - .res $2000 - -; Command buffer. -cmd_buf: - .res $400 - ; Screen variables. .org 0 scr_row: @@ -238,10 +247,7 @@ ptr3: .res 8 -; Token table. .org $20000 -tokline: - .res $400 ; Program Counter. prg_cnt: @@ -327,14 +333,54 @@ lex_type: lexeme: .res $100 +; Size of the heap. +heapsize: + .res 8 + +; Start of the heap. +heapstr: + .res 8 + +; End of the heap. +heapend: + .res 8 + +; Current top of the heap. +heapptr: + .res 8 + +; First heap entry. +heapf: + .res 8 + +; Last heap entry. +heapl: + .res 8 + +; Linewrap table. +bitabl: + .res 8 + +; Screen buffer. +buffer: + .res 8 + +; Command buffer. +cmd_buf: + .res 8 + +; Token table. +tokline: + .res 8 + ; Symbol table. symbol: - .res $8000 + .res 8 ; Fixup table. ; Fixups are unresolved symbols. fixup: - .res $2000 + .res 8 ; ROM data declarations. |